{"type": "FeatureCollection", "features": [{"id": "10.1002/pts.2308", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:14:28Z", "type": "Journal Article", "created": "2017-04-21", "title": "Cellulose Nanocrystals from Lignocellulosic Raw Materials, for Oxygen Barrier Coatings on Food Packaging Films", "description": "Cellulose nanocrystals (CNCs) are unique, renewable top-down nano particles from which coatings with improved gas barrier properties and new functionalities can be prepared. In this paper, the potential for obtaining such high performing nanocrystals from low-cost lignocellulosic by-products or raw materials is proved by a comparison study on CNCs obtained both from cotton linters and kraft pulp, by means of the ammonium persulfate (APS) process. Morphological and chemical characterization of the nanocrystals obtained, as well as the main functional properties of the poly(ethylene terephthalate) coated films, showed quite similar characteristics and performances of CNCs obtained from pure cellulose raw material (cotton linters) and the nanoparticles produced from a potential discard of paper making processes (kraft pulp). In particular, the gas barrier properties of the coating produced with CNCs obtained from kraft pulp were very promising, providing oxygen and carbon dioxide permeability values hundreds of times lower than those of equal thickness in comparison with common barrier synthetic polymers, over a broad range of temperatures. The results obtained are relevant not only for the outstanding performances achieved, but also because they evoke a possible positive example of industrial symbiosis in the packaging field, merging together the requirements and needs of the paper and plastic industries and addressing the way towards a better management of waste and materials. Copyright \u00a9 2017 John Wiley & Sons, Ltd.", "keywords": ["ammonium persulfate (APS) process; cellulose nano-crystals; film coating; gas permeability; lignocellulosic materials; Chemistry (all); Materials Science (all); Mechanical Engineering", "02 engineering and technology", "0210 nano-technology"]}, "links": [{"href": "https://doi.org/10.1002/pts.2308"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Packaging%20Technology%20and%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/pts.2308", "name": "item", "description": "10.1002/pts.2308", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/pts.2308"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-04-21T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2012.04.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:17:24Z", "type": "Journal Article", "created": "2012-05-03", "title": "Ammonia Volatilization Losses From Surface-Applied Urea With Urease And Nitrification Inhibitors", "description": "Abstract   Urease inhibitor (UI) and nitrification inhibitor (NI) have the potential to improve N-use efficiency of applied urea and minimize N losses via gaseous emissions of ammonia (NH3) to the atmosphere and nitrate       (     NO   3  \u2212    )       leaching into surface and ground water bodies. There is a growing interest in the formulations of coating chemical fertilizers with both UI and NI. However, limited information is available on the combined use of UI and NI applied with urea fertilizer. Therefore the aim of this study was to investigate the effects of treating urea with both UI and NI to minimize NH3 volatilization. Two experiments were set up in volatilization chambers under controlled conditions to examine this process. In the first experiment, UR was treated with the urease inhibitor NBPT [N-(n-butyl) thiophosphoric acid triamide] at a rate of 1060\u00a0mg\u00a0kg\u22121 urea and/or with the nitrification inhibitor DCD (dicyandiamide) at rates equivalent to 5 or 10% of the urea N. A randomized experimental design with five treatments and five replicates was used: 1) UR, 2) UR\u00a0+\u00a0NBPT, 3) UR\u00a0+\u00a0DCD 10%, 4) UR\u00a0+\u00a0NBPT\u00a0+\u00a0DCD 5%, and 5) UR\u00a0+\u00a0NBPT\u00a0+\u00a0DCD 10%. The fertilizer treatments were applied to the surface of an acidic Red Latosol soil moistened to 60% of the maximum water retention and placed inside volatilization chambers. Controls chambers were added to allow for NH3 volatilized from unfertilized soil or contained in the air that swept over the soil surface. The second experiment had an additional treatment with surface-applied DCD. The chambers were glass vessels (1.5\u00a0L) fit with air inlet and outlet tubings to allow air to pass over the soil. Ammonia volatilized was swept and carried to a flask containing a boric acid solution to trap the gas and then measured daily by titration with a standardized H2SO4 solution. Continuous measurements were recorded for 19 and 23 days for the first and second experiment, respectively. The soil samples were then analyzed for UR\u2013,       NH   4  +   \u2013    , and       NO   3  \u2212   \u2013  N    . Losses of NH3 by volatilization with unamended UR ranged from 28 to 37% of the applied N, with peak of losses observed the third day after fertilization. NBPT delayed the peak of NH3 losses due to urease inhibition and reduced NH3 volatilization between 54 and 78% when compared with untreated UR. Up to 10 days after the fertilizer application, NH3 losses had not been affected by DCD in the UR or the UR\u00a0+\u00a0NBPT treatments; thereafter, NH3 volatilization tended to decrease, but not when DCD was present. As a consequence, the addition of DCD caused a 5\u201316% increase in NH3 volatilization losses of the fertilizer N applied as UR from both the UR and the UR\u00a0+\u00a0NBPT treatments. Because the effectiveness of NBPT to inhibit soil urease activity was strong only in the first week, it could be concluded that DCD did not affect the action of NBPT but rather, enhanced volatilization losses by maintaining higher soil       NH   4  +      concentration and pH for a longer time. Depending on the combination of factors influencing NH3 volatilization, DCD could even offset the beneficial effect of NBPT in reducing NH3 volatilization losses.", "keywords": ["soil chemistry", "Urease inhibitors", "Surface treatment", "nutrient use efficiency", "Ammonia volatilization", "01 natural sciences", "630", "Ammonia", "Oxidation", "DCD", "Urea", "Urea fertilizers", "Fertilizers", "volatilization", "Groundwater", "0105 earth and related environmental sciences", "soil surface", "coating", "fertilizer application", "Urease inhibitor", "04 agricultural and veterinary sciences", "Nitrification inhibitor", "Nitrification", "Inorganic acids", "6. Clean water", "enzyme activity", "inhibitor", "pH effects", "Metabolism", "NBPT", "Denitrification", "Leaching", "Soils", "0401 agriculture", " forestry", " and fisheries", "Experiments", "Stabilized fertilizer"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2012.04.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2012.04.019", "name": "item", "description": "10.1016/j.soilbio.2012.04.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2012.04.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-09-01T00:00:00Z"}}, {"id": "10.1016/j.fpsl.2020.100620", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:41Z", "type": "Journal Article", "created": "2021-01-10", "title": "Combination of ferulic acid with Aloe vera gel or alginate coatings for shelf-life prolongation of fresh-cut apples", "description": "Open AccessWeight loss, microbial spoilage and enzymatic browning are the main quality-determining processes which limit the shelf-life of fresh-cut apples. In this study, two edible coatings based on Aloe vera gel (AV) and sodium alginate cross-linked with calcium lactate (AC), with the addition of 10 mg/mL ferulic acid (FA) as a functional ingredient, were developed in order to prolong the quality and safety of fresh-cut apple discs. Texture parameters, pH and Brix values and water activity did not undergo relevant changes related to the treatments. Except for weight loss, which was significantly lower for the coated samples, the addition of FA was found to be the most relevant factor for the other investigated parameters, including the total phenolic content and the antioxidant activity measured by ferric reducing antioxidant power (FRAP). Browning was delayed by the addition of FA and also by the AV coating, while non-coated and alginate coated samples showed the highest values in early stages. Although no effect on Saccharomyces cerevisiae was observed, FA treatments and alginate were effective in reducing Listeria monocytogenes populations by 2.3 \u00b1 0.4 log CFU / g, which contributes to an enhanced product safety.", "keywords": ["2. Zero hunger", "Weight loss", "0404 agricultural biotechnology", "Browning", "Fresh-cut fruit", "Ferulic acid", "04 agricultural and veterinary sciences", "Edible coatings", "Listeria monocytogenes", "Preservation", "631"]}, "links": [{"href": "https://doi.org/10.1016/j.fpsl.2020.100620"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Food%20Packaging%20and%20Shelf%20Life", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.fpsl.2020.100620", "name": "item", "description": "10.1016/j.fpsl.2020.100620", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.fpsl.2020.100620"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-03-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2018.09.017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:17:12Z", "type": "Journal Article", "created": "2018-09-04", "title": "Determination of nanoparticle heteroaggregation attachment efficiencies and rates in presence of natural organic matter monomers. Monte Carlo modelling", "description": "Understanding the transformation and transport of manufactured nanoparticles (NPs) in aquatic systems remains an important issue due to their potential hazard. Once released in aquatic systems, NPs will interact with natural compounds such as suspended inorganic particles and/or natural organic matter (NOM) and heteroaggregation will control their ultimate fate. Unfortunately, systematic experimental methods to study heteroaggregation are not straightforward and still scarce. In addition, the description of heteroaggregation rate constants and attachment efficiencies is still a matter of debate since no clear definition exists. In this work, an original cluster-cluster Monte Carlo model is developed to get an insight into heteroaggregation process descriptions. A two-component system composed of NPs and NOM fulvic acid monomers is investigated by considering several water models to cover a range of (relevant) conditions from fresh to marine waters. For that purpose, homo- and hetero- individual attachment efficiencies between NPs and NOM units are adjusted (NP-NP, NOM-NOM and NP-NOM). The influence of NP/NOM ratio, NOM-NOM homoaggregation versus heteroaggregation, and surface coating effects is studied systematically. From a quantitative point of view, aggregation rate constants as well as attachment efficiencies are calculated as a function of physical time so as to characterize the individual influence of each parameter and to allow future comparison with experimental data. Heteroaggregation processes and global attachment efficiencies corresponding to several mechanisms and depending on the evolution of heteroaggregate structures all along the simulations are defined. The calculation of attachment efficiency values is found dependent on NP/NOM concentration ratios via coating effects, by the initial set of elementary attachment efficiencies and influence of homoaggregation. Marine water represents a specific case of aggregation where all particle contacts are effective. On the other hand, in 'ultrapure' and 'fresh waters', a competition between homo- and heteroaggregation occurs depending on the initial attachment efficiencies therefore indicating that a subtle change in the NP surface properties as well as in the water chemistry have a significant impact on heteroaggregation processes.", "keywords": ["SDG 14 \u2013 Leben unter Wasser", "FATE", "0211 other engineering and technologies", "02 engineering and technology", "SILVER NANOPARTICLES", "01 natural sciences", "Nanoparticle", "ddc:550", "105906 Environmental geosciences", "SDG 14 - Life Below Water", "Monte Carlo simulation", "OXIDE NANOPARTICLES", "0105 earth and related environmental sciences", "ddc:333.7-333.9", "Natural organic matter", "NANOMATERIALS", "info:eu-repo/classification/ddc/333.7-333.9", "info:eu-repo/classification/ddc/550", "Surface coating", "ENGINEERED NANOPARTICLES", "Attachment efficiency", "Nanopartide", "TITANIUM-DIOXIDE NANOPARTICLES", "TRANSPORT", "AQUATIC ENVIRONMENT", "TIO2 NANOPARTICLES", "Natural Organic Matter", "13. Climate action", "Heteroaggregation", "105906 Umweltgeowissenschaften", "DIFFUSION-LIMITED AGGREGATION"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2018.09.017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2018.09.017", "name": "item", "description": "10.1016/j.scitotenv.2018.09.017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2018.09.017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-02-01T00:00:00Z"}}, {"id": "10.1016/j.surfcoat.2018.08.097", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:17:47Z", "type": "Journal Article", "created": "2018-09-06", "title": "Corrosion testing of diffusion-coated steel in molten salt for concentrated solar power tower systems", "description": "Abstract   In the course of energy transition the development of sustainable technologies for power generation providing base load supply is of particular importance. In comparison to photovoltaics concentrated solar power (CSP) Systems have great potential to fulfil this requirement by the use of thermal storage systems utilizing molten salt mixtures as heat transfer fluids. For this purpose, molten nitrates are frequently discussed due to their beneficial thermal and physical properties as well as high operation temperatures.  In order to protect the piping system from degradation, coatings can be applied on the surface of the employed materials, which are commonly steels or Ni-based alloys. The goal is to achieve cost reduction to ensure an even more competitive position of the CSP technology with respect to other renewable sources on the market.  In this study, the corrosion behavior of coated and uncoated ferritic-martensitic steels of type T91 and VM12 in molten salt (mixture of NaNO3 and KNO3) has been investigated under isothermal conditions. The diffusion coatings are based on potentially protective elements such as Al, Si or Cr and were applied on the steels either by pack cementation or slurry deposition. Characterization of the samples was conducted by means of optical microscope and EPMA in order to gain a deeper understanding of the occurring corrosion mechanisms and for the purpose of lifetime analysis.", "keywords": ["Ferritic-martensitic steel", " Diffusion coating", " Molten salt", " Concentrated solar power tower plant", "13. Climate action", "7. Clean energy"]}, "links": [{"href": "https://doi.org/10.1016/j.surfcoat.2018.08.097"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Surface%20and%20Coatings%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.surfcoat.2018.08.097", "name": "item", "description": "10.1016/j.surfcoat.2018.08.097", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.surfcoat.2018.08.097"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-11-01T00:00:00Z"}}, {"id": "10.1063/1.4984416", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:18:40Z", "type": "Journal Article", "created": "2017-06-28", "title": "Aluminide slurry coatings for protection of ferritic steel in molten nitrate corrosion for concentrated solar power technology", "description": "Molten nitrates can be employed as heat storage fluids in solar concentration power plants. However molten nitrates are corrosive and if operating temperatures are raised to increase efficiencies, the corrosion rates will also increase. High temperature corrosion resistant coatings based on Al have demonstrated excellent results in other sectors such as gas turbines. Aluminide slurry coated and uncoated P92 steel specimens were exposed to the so called Solar Salt (industrial grade), a binary eutectic mixture of 60 % NaNO3 \u2013 40 % KNO3, in air for 2000 hours at 550\u00b0C and 580\u00b0C in order to analyze their behavior as candidates to be used in future solar concentration power plants employing molten nitrates as heat transfer fluids. Coated ferritic steels constitute a lower cost technology than Ni based alloy. Two different coating morphologies resulting from two heat treatment performed at 700 and 1050\u00b0C after slurry application were tested. The coated systems exhibited excellent corrosion resistance at both te...", "keywords": ["Corrosion", "Aluminide coatings", "Molten nitrates", "13. Climate action", "0202 electrical engineering", " electronic engineering", " information engineering", "02 engineering and technology", "0210 nano-technology", "7. Clean energy", "6. Clean water", "concentrated solar power"]}, "links": [{"href": "http://aip.scitation.org/doi/pdf/10.1063/1.4984416"}, {"href": "https://doi.org/10.1063/1.4984416"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/AIP%20Conference%20Proceedings", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1063/1.4984416", "name": "item", "description": "10.1063/1.4984416", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1063/1.4984416"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}, {"id": "10.1063/1.5067230", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:18:40Z", "type": "Journal Article", "created": "2018-11-08", "title": "Accelerated ageing of solar receiver coatings: Experimental results for T91 and VM12 steel substrates", "description": "This paper reports experimental results for accelerated ageing test campaigns performed on four different solar receiver coatings applied on T91 and VM12 steel substrates. VM12 tubular samples are exposed at a dish test facility in order to perform thermal cycles under concentrated solar flux. No significant optical degradation could be observed on coated samples after 100 thermal cycles (50 hours at 650 \u00b0C), while bare and polished reference substrates oxidized during testing. Three solar receiver coatings achieved a stable solar weighted absorptance \u03b1s above 95 % after exposure. A selective coating further showed a thermal emittance of 25 % at 650 \u00b0C, instead of 65-75 % for non-selective coatings, thus achieving a thermal efficiency above 90 % at 250 kW/m2, instead of 85 % for non-selective coatings. T91 coated metal coupons were tested in four standard climate test chambers for condensation, damp heat, humidity freeze and neutral salt spray. Two non-selective coatings passed all climate tests without significant optical degradation, while the selective coating did not pass the neutral salt spray test due to severe corrosion.", "keywords": ["Solar absorptance", "13. Climate action", "Receiver coatings", "Thermal emittance", "Qualifizierung", "02 engineering and technology", "High temperature", "0210 nano-technology", "7. Clean energy", "Durability"], "contacts": [{"organization": "Caron, Simon, Sutter, Florian, Algner, Niels, Esteller, Marcos, Binyamin, Y., Baidosi, M., Kenigsberg, A., Ag\u00fcero, A., F\u00e4hsing, D., Hildebrandt, C.,", "roles": ["creator"]}]}, "links": [{"href": "https://elib.dlr.de/115407/1/SolarPACES2017_Simon%20Caron_Accelerated%20Ageing%20of%20Solar%20Receivers_Alterung_Presentation.pdf"}, {"href": "http://aip.scitation.org/doi/pdf/10.1063/1.5067230"}, {"href": "https://doi.org/10.1063/1.5067230"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/AIP%20Conference%20Proceedings", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1063/1.5067230", "name": "item", "description": "10.1063/1.5067230", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1063/1.5067230"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-01T00:00:00Z"}}, {"id": "10.1063/1.5117511", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:18:40Z", "type": "Journal Article", "created": "2019-07-27", "title": "Improving optical properties of diffusion-based absorber coatings for CSP tower systems", "description": "In the course of energy transition the development of sustainable, efficient and renewable technologies for power generation providing base load supply is of crucial importance. CSP plants have great potential to fulfil all these requirements. However, mitigation of molten salt corrosion inside the absorber tube as well as improvement of optical properties on its outside are key challenges and part of ongoing developments. For this purpose, a Cr-Mn-diffusion absorber coating has been developed and is presented together with its improved version, an organic-based bilayer system. This study focusses on the continuous improvement of optical properties in terms of thermal efficiency (solar absorption and emittance) as well as qualification of both coatings with regards to long term durability (isothermal and thermocyclic stability).", "keywords": ["13. Climate action", "0202 electrical engineering", " electronic engineering", " information engineering", "02 engineering and technology", "0210 nano-technology", "7. Clean energy", "diffusion coatings", " concentrated solar power", " absorptivity"]}, "links": [{"href": "http://aip.scitation.org/doi/pdf/10.1063/1.5117511"}, {"href": "https://doi.org/10.1063/1.5117511"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/AIP%20Conference%20Proceedings", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1063/1.5117511", "name": "item", "description": "10.1063/1.5117511", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1063/1.5117511"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-01-01T00:00:00Z"}}, {"id": "10.1088/1757-899X/364/1/012073", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:19:02Z", "type": "Journal Article", "created": "2018-06-18", "title": "Photocatalytic hydroxyapatite-titania nanocomposites for preventive conservation of marble", "description": "Soiling of external surfaces is an increasing issue for conservation of architectural  heritage. Providing architectural surfaces with self-cleaning ability is one of the most promising  routes of preventive conservation. To this aim, several methods have been proposed in the  literature, based on the use of photocatalytic TiO2 nanoparticles, either directly applied onto the  surfaces or incorporated in protective coatings. However, when nano-TiO2 is directly applied  onto architectural surfaces, the particles are easily removed by rain. When TiO2 is incorporated  in polymeric coatings, durability issues arise as well, because the photoactivity of TiO2  nanoparticles can promote degradation of the polymer. Here, we present an innovative  alternative method, based on combination of TiO2 nanoparticles and hydroxyapatite (HAP). The  incorporation of nano-TiO2 into an HAP coating protects the nanoparticles from leaching by rain,  thanks to the chemical bonding between TiO2 and HAP, without diminishing their photoactivity.  As a result, marble treated with HAP-TiO2 composites exhibits high self-cleaning ability and  high durability, with results superior to those achieve by direct application of nano-TiO2 onto the  surface, as frequently performed on site.", "keywords": ["Durability; Hydroxyapatite; Marble; Nanoparticles; Protective coatings; Rain", "02 engineering and technology", "ING-IND/22 Scienza e tecnologia dei materiali", "Soiling; Photocatalytic activity; Selfcleaning; Titanium dioxide; Hydroxyapatite; Calcium phosphate; Durability; Leaching", "IOP Conference Series: Materials Science and Engineering", "0210 nano-technology", "01 natural sciences", "0104 chemical sciences"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/643036/1/Sassoni%20et%20al%20%282018%29%20Photocatalytic%20HAP-TiO2%20nano-composites.pdf"}, {"href": "https://doi.org/10.1088/1757-899X/364/1/012073"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/IOP%20Conference%20Series%3A%20Materials%20Science%20and%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1757-899X/364/1/012073", "name": "item", "description": "10.1088/1757-899X/364/1/012073", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1757-899X/364/1/012073"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-06-01T00:00:00Z"}}, {"id": "10.1088/1757-899X/364/1/012092", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:19:02Z", "type": "Journal Article", "created": "2018-06-18", "title": "New insights on protective treatments for marble by FIB-SEM", "description": "In this study, we investigated by FIB-SEM the microstructure of protective coatings formed by two inorganic treatments (namely, ammonium oxalate and ammonium phosphate solutions), with the aim of identifying the factors limiting the protective efficacy of the coatings and outlining possible improvement strategies. In the case of the oxalate treatment, the resulting layer of whewellite was found to contain vertical channels, which can allow water to reach the marble surface and trigger dissolution. Possible prevention of the formation of these channels by addition of a calcium source to the oxalate solution was attempted, but even micromolar additions led to rapid precipitation in the solution. In the case of the phosphate treatment, the resulting hydroxyapatite and octacalcium phosphate coating was found to be cracked and porous. To prevent cracks and pores, diminishing the ammonium phosphate concentration and adding ethanol to the solution were found to be effective strategies, as cracks were prevented and pores were reduced almost to zero. The resulting protective efficacy of the coating was found to be significantly improved, although still not perfect.", "keywords": ["Hydroxyapatite; Inorganic coatings; Marble; Calcium oxalate; Protective coatings", "FIB; XRD; Inorganic protectives; Hydroxyapatite; Calcium phosphates; Calcium oxalate; Porosity; Marble; Acid attack", "02 engineering and technology", "ING-IND/22 Scienza e tecnologia dei materiali", "IOP Conference Series: Materials Science and Engineering", "0210 nano-technology", "6. Clean water"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/643033/3/Sassoni%20et%20al%20%282018%29%20New%20Insights%20by%20FIB-SEM%20on%20Protective%20Treatments.pdf"}, {"href": "https://doi.org/10.1088/1757-899X/364/1/012092"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/IOP%20Conference%20Series%3A%20Materials%20Science%20and%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1757-899X/364/1/012092", "name": "item", "description": "10.1088/1757-899X/364/1/012092", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1757-899X/364/1/012092"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-06-01T00:00:00Z"}}, {"id": "10.1109/IESC.2018.8439970", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:19:14Z", "type": "Journal Article", "created": "2018-09-07", "title": "Spectral characterisation of high temperature solar absorber coatings", "description": "Four newly developed solar absorber coatings are to be evaluated with the help of thermal cycling and optical characterisation. An initial round robin campaign reveals the need of a standardisation of the calculation procedure of solar absorptance and thermal emittance derived from optical measurements at room temperature. The implementation of a common processing of spectral hemispherical reflectance values enables a reduction of standard deviations to 0.2%, both for solar absorptance and thermal emittance. The calculation procedure proposed within this paper corresponds to DIN EN 22975\u20133 and enables the verification of measurement reproducibility according to ASTM E 691 \u2013 05.", "keywords": ["Absorber coatings", "Qualifizierung", "thermal emittance", "7. Clean energy", "Absorption"]}, "links": [{"href": "https://elib.dlr.de/123461/1/2018_IESC2018_Spectral_Characterization_High%20Temperature%20Solar%20Absorber%20Coatings.pdf"}, {"href": "http://xplorestaging.ieee.org/ielx7/8428167/8439943/08439970.pdf?arnumber=8439970"}, {"href": "https://doi.org/10.1109/IESC.2018.8439970"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2018%207th%20International%20Energy%20and%20Sustainability%20Conference%20%28IESC%29", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1109/IESC.2018.8439970", "name": "item", "description": "10.1109/IESC.2018.8439970", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1109/IESC.2018.8439970"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-05-01T00:00:00Z"}}, {"id": "10.1557/adv.2017.45", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:20:30Z", "type": "Journal Article", "created": "2017-01-24", "title": "Some Recent Findings On Marble Conservation By Aqueous Solutions Of Diammonium Hydrogen Phosphate", "description": "Given the lack of satisfying treatments for consolidating marble affected by thermally induced grain detachment (the so-called 'sugaring'), the use of aqueous solutions of diammonium hydrogen phosphate (DAP) has recently been proposed. The idea is to form a new binding mineral (hydroxyapatite, HAP) as the reaction product between the DAP solution and the calcitic substrate. In this study, we investigated the effects of adding small quantities of ethanol (EtOH) to the DAP solution, with the aim of favoring HAP formation. The results of the study indicate that, when a 0.1 M DAP and 0.1 mM CaCl2 solution in 10 vol% EtOH is used, complete coverage of marble surface with a crack-free coating with reduced porosity is achieved (whereas no coating is formed without EtOH addition). This is thought to be a consequence of the weakening of hydration shells of phosphate ions in the DAP solution, thanks to the presence of ethanol molecules. When used to restore mechanical properties of weathered marble, the treatment with 10 vol% EtOH was found to significantly improve the dynamic elastic modulus after a single application and to completely restore it after a second application.", "keywords": ["02 engineering and technology", "ING-IND/22 Scienza e tecnologia dei materiali", "0210 nano-technology", "Marble; Hydroxyapatite; Ethanol; Alcohol; Microstructure; Consolidation; Protection", "adhesion; coating; ethanol; Mechanical Engineering; Mechanics of Materials; Materials Science (all); Condensed Matter Physics"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/628342/5/MRS2016_Copertina.pdf"}, {"href": "https://doi.org/10.1557/adv.2017.45"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/MRS%20Advances", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1557/adv.2017.45", "name": "item", "description": "10.1557/adv.2017.45", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1557/adv.2017.45"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}, {"id": "10.3390/coatings9100687", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:21:47Z", "type": "Journal Article", "created": "2019-10-23", "title": "Scale Formation and Degradation of Diffusion Coatings Deposited on 9% Cr Steel in Molten Solar Salt", "description": "<p>The employment of ferritic-martensitic steels e.g., P91, as structural materials in concentrated solar power (CSP) plants can significantly increase cost-efficiency. However, their application is strongly restricted by their lower corrosion resistance in molten nitrates, compared to austenitic steels or Ni-based alloys. In this study, Cr-, Al-, and Cr/Al-diffusion coatings were deposited on P91 via pack cementation in order to improve its scaling behavior in molten solar salt (MSS). The corrosion behavior of coated specimens was investigated with respect to uncoated P91 in MSS at 600 \uffc2\uffb0C for up to 1000 h. The exposure in MSS resulted in a thick, highly porous, and multi-layered oxide scale on uncoated P91 consisting of hematite, magnetite, and sodium ferrite. On the other hand, the scale grown on the chromized P91 comprised of a thin Cr-rich inner layer, which shifted breakaway to prolonged exposure durations. The aluminized specimens both formed very thin, highly protective alumina scales with localized protrusions.</p>", "keywords": ["[CHIM.INOR] Chemical Sciences/Inorganic chemistry", "[CHIM.MATE] Chemical Sciences/Material chemistry", "Cr-diffusion coating", "[CHIM.MATE]Chemical Sciences/Material chemistry", "02 engineering and technology", "[CHIM.INOR]Chemical Sciences/Inorganic chemistry", "[SPI.MAT] Engineering Sciences [physics]/Materials", "7. Clean energy", "pack cementation", "[SPI.MAT]Engineering Sciences [physics]/Materials", "concentrated solar power", "X-ray diffraction", "molten nitrate corrosion", "13. Climate action", "concentrated solar power; grade 91 steel; Cr-diffusion coating; Al-diffusion coating; pack cementation; molten nitrate corrosion; X-ray diffraction; Raman spectroscopy; third element effect", "Raman spectroscopy", "third element effect", "0202 electrical engineering", " electronic engineering", " information engineering", "grade 91 steel", "Al-diffusion coating", "0210 nano-technology"]}, "links": [{"href": "http://www.mdpi.com/2079-6412/9/10/687/pdf"}, {"href": "https://www.mdpi.com/2079-6412/9/10/687/pdf"}, {"href": "https://doi.org/10.3390/coatings9100687"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Coatings", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/coatings9100687", "name": "item", "description": "10.3390/coatings9100687", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/coatings9100687"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-10-22T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=coating&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=coating&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=coating&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=coating&offset=13", "hreflang": "en-US"}], "numberMatched": 13, "numberReturned": 13, "distributedFeatures": [], "timeStamp": "2026-07-28T08:04:16.727564Z"}