Mesoporous boron nitride in contact with water - Chemical stability and adsorption properties
In the context of adsorptive water treatment, exhaust gas treatment, gas storage, or catalysis, porous boron nitride is gaining in scientific attention due to its versatile properties. The material is above all characterized by its high chemical and thermal stability. However, it has recently been s...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Results in Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590048X22000863 |
| _version_ | 1811257568499073024 |
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| author | Jan Hojak Tim Jähnichen Christian Bläker Christoph Pasel Volker Mauer Leon Rasmussen Reinhard Denecke Dirk Enke Dieter Bathen |
| author_facet | Jan Hojak Tim Jähnichen Christian Bläker Christoph Pasel Volker Mauer Leon Rasmussen Reinhard Denecke Dirk Enke Dieter Bathen |
| author_sort | Jan Hojak |
| collection | DOAJ |
| description | In the context of adsorptive water treatment, exhaust gas treatment, gas storage, or catalysis, porous boron nitride is gaining in scientific attention due to its versatile properties. The material is above all characterized by its high chemical and thermal stability. However, it has recently been shown that porous boron nitride is highly water-susceptible, which severely limits its application in non-inert atmospheres. So far, solely the influence of chemical composition on water stability has been investigated in literature. In the present work, the influence of different pore sizes is considered. Two different boron nitrides, a mesoporous and a micro-mesoporous one, are investigated with regard to their stability in air, water vapor, and liquid water for multiple weeks. Using different analytical methods, it can be shown that the stability of porous boron nitride strongly depends on pore size and structure. We demonstrate that the mesoporous boron nitride synthesized in this work has much higher water stability than micro-mesoporous boron nitrides. The mesoporous material showed minor to no changes in its chemical structure and isothermal shape when exposed to water vapor and air. We suggest that a higher amount of crystalline hexagonal boron nitride leads to increased stability. This conclusion opens pathways to improve the water stability of porous boron nitride in order to make it suitable for non-inert gas phase adsorption applications. |
| first_indexed | 2024-04-12T17:59:36Z |
| format | Article |
| id | doaj.art-b8e899fe5ff34a3bb8c330b7de716299 |
| institution | Directory Open Access Journal |
| issn | 2590-048X |
| language | English |
| last_indexed | 2024-04-12T17:59:36Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Materials |
| spelling | doaj.art-b8e899fe5ff34a3bb8c330b7de7162992022-12-22T03:22:13ZengElsevierResults in Materials2590-048X2022-12-0116100338Mesoporous boron nitride in contact with water - Chemical stability and adsorption propertiesJan Hojak0Tim Jähnichen1Christian Bläker2Christoph Pasel3Volker Mauer4Leon Rasmussen5Reinhard Denecke6Dirk Enke7Dieter Bathen8Chair of Thermal Process Engineering, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany; Corresponding author.Institute of Chemical Technology, Leipzig University, Linnéstr. 3, 04103, Leipzig, GermanyChair of Thermal Process Engineering, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, GermanyChair of Thermal Process Engineering, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, GermanyChair of Thermal Process Engineering, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, GermanyInstitute of Chemical Technology, Leipzig University, Linnéstr. 3, 04103, Leipzig, GermanyWilhelm-Ostwald Institute for Physical and Theoretical Chemistry, Leipzig University, Linnéstr. 2, 04103, Leipzig, GermanyInstitute of Chemical Technology, Leipzig University, Linnéstr. 3, 04103, Leipzig, GermanyChair of Thermal Process Engineering, University of Duisburg-Essen, Lotharstr. 1, 47057, Duisburg, Germany; Institute of Energy and Environmental Technology e.V. (IUTA), Bliersheimer Str. 58-60, 47229, Duisburg, GermanyIn the context of adsorptive water treatment, exhaust gas treatment, gas storage, or catalysis, porous boron nitride is gaining in scientific attention due to its versatile properties. The material is above all characterized by its high chemical and thermal stability. However, it has recently been shown that porous boron nitride is highly water-susceptible, which severely limits its application in non-inert atmospheres. So far, solely the influence of chemical composition on water stability has been investigated in literature. In the present work, the influence of different pore sizes is considered. Two different boron nitrides, a mesoporous and a micro-mesoporous one, are investigated with regard to their stability in air, water vapor, and liquid water for multiple weeks. Using different analytical methods, it can be shown that the stability of porous boron nitride strongly depends on pore size and structure. We demonstrate that the mesoporous boron nitride synthesized in this work has much higher water stability than micro-mesoporous boron nitrides. The mesoporous material showed minor to no changes in its chemical structure and isothermal shape when exposed to water vapor and air. We suggest that a higher amount of crystalline hexagonal boron nitride leads to increased stability. This conclusion opens pathways to improve the water stability of porous boron nitride in order to make it suitable for non-inert gas phase adsorption applications.http://www.sciencedirect.com/science/article/pii/S2590048X22000863Mesoporous turbostratic boron nitrideAir stabilityWater stabilityWater vapor adsorption |
| spellingShingle | Jan Hojak Tim Jähnichen Christian Bläker Christoph Pasel Volker Mauer Leon Rasmussen Reinhard Denecke Dirk Enke Dieter Bathen Mesoporous boron nitride in contact with water - Chemical stability and adsorption properties Results in Materials Mesoporous turbostratic boron nitride Air stability Water stability Water vapor adsorption |
| title | Mesoporous boron nitride in contact with water - Chemical stability and adsorption properties |
| title_full | Mesoporous boron nitride in contact with water - Chemical stability and adsorption properties |
| title_fullStr | Mesoporous boron nitride in contact with water - Chemical stability and adsorption properties |
| title_full_unstemmed | Mesoporous boron nitride in contact with water - Chemical stability and adsorption properties |
| title_short | Mesoporous boron nitride in contact with water - Chemical stability and adsorption properties |
| title_sort | mesoporous boron nitride in contact with water chemical stability and adsorption properties |
| topic | Mesoporous turbostratic boron nitride Air stability Water stability Water vapor adsorption |
| url | http://www.sciencedirect.com/science/article/pii/S2590048X22000863 |
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