Tungsten-Based Catalysts for Environmental Applications
This review aims to give a general overview of the recent use of tungsten-based catalysts for wide environmental applications, with first some useful background information about tungsten oxides. Tungsten oxide materials exhibit suitable behaviors for surface reactions and catalysis such as acidic p...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/11/6/703 |
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| author | Fabien Can Xavier Courtois Daniel Duprez |
| author_facet | Fabien Can Xavier Courtois Daniel Duprez |
| author_sort | Fabien Can |
| collection | DOAJ |
| description | This review aims to give a general overview of the recent use of tungsten-based catalysts for wide environmental applications, with first some useful background information about tungsten oxides. Tungsten oxide materials exhibit suitable behaviors for surface reactions and catalysis such as acidic properties (mainly Brønsted sites), redox and adsorption properties (due to the presence of oxygen vacancies) and a photostimulation response under visible light (2.6–2.8 eV bandgap). Depending on the operating condition of the catalytic process, each of these behaviors is tunable by controlling structure and morphology (e.g., nanoplates, nanosheets, nanorods, nanowires, nanomesh, microflowers, hollow nanospheres) and/or interactions with other compounds such as conductors (carbon), semiconductors or other oxides (e.g., TiO<sub>2</sub>) and precious metals. WO<sub>x</sub> particles can be also dispersed on high specific surface area supports. Based on these behaviors, WO<sub>3</sub>-based catalysts were developed for numerous environmental applications. This review is divided into five main parts: structure of tungsten-based catalysts, acidity of supported tungsten oxide catalysts, WO<sub>3</sub> catalysts for DeNO<sub>x</sub> applications, total oxidation of volatile organic compounds in gas phase and gas sensors and pollutant remediation in liquid phase (photocatalysis). |
| first_indexed | 2024-03-10T10:46:28Z |
| format | Article |
| id | doaj.art-02ecdac57cc74cd59230bf3430baea35 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T10:46:28Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-02ecdac57cc74cd59230bf3430baea352023-11-21T22:31:01ZengMDPI AGCatalysts2073-43442021-06-0111670310.3390/catal11060703Tungsten-Based Catalysts for Environmental ApplicationsFabien Can0Xavier Courtois1Daniel Duprez2CNRS, UMR7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, 4 rue Michel Brunet, CEDEX 09, 86073 Poitiers, FranceCNRS, UMR7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, 4 rue Michel Brunet, CEDEX 09, 86073 Poitiers, FranceCNRS, UMR7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, 4 rue Michel Brunet, CEDEX 09, 86073 Poitiers, FranceThis review aims to give a general overview of the recent use of tungsten-based catalysts for wide environmental applications, with first some useful background information about tungsten oxides. Tungsten oxide materials exhibit suitable behaviors for surface reactions and catalysis such as acidic properties (mainly Brønsted sites), redox and adsorption properties (due to the presence of oxygen vacancies) and a photostimulation response under visible light (2.6–2.8 eV bandgap). Depending on the operating condition of the catalytic process, each of these behaviors is tunable by controlling structure and morphology (e.g., nanoplates, nanosheets, nanorods, nanowires, nanomesh, microflowers, hollow nanospheres) and/or interactions with other compounds such as conductors (carbon), semiconductors or other oxides (e.g., TiO<sub>2</sub>) and precious metals. WO<sub>x</sub> particles can be also dispersed on high specific surface area supports. Based on these behaviors, WO<sub>3</sub>-based catalysts were developed for numerous environmental applications. This review is divided into five main parts: structure of tungsten-based catalysts, acidity of supported tungsten oxide catalysts, WO<sub>3</sub> catalysts for DeNO<sub>x</sub> applications, total oxidation of volatile organic compounds in gas phase and gas sensors and pollutant remediation in liquid phase (photocatalysis).https://www.mdpi.com/2073-4344/11/6/703tungstenWO<sub>3</sub>deNO<sub>x</sub>VOCphotocatalysissensor |
| spellingShingle | Fabien Can Xavier Courtois Daniel Duprez Tungsten-Based Catalysts for Environmental Applications Catalysts tungsten WO<sub>3</sub> deNO<sub>x</sub> VOC photocatalysis sensor |
| title | Tungsten-Based Catalysts for Environmental Applications |
| title_full | Tungsten-Based Catalysts for Environmental Applications |
| title_fullStr | Tungsten-Based Catalysts for Environmental Applications |
| title_full_unstemmed | Tungsten-Based Catalysts for Environmental Applications |
| title_short | Tungsten-Based Catalysts for Environmental Applications |
| title_sort | tungsten based catalysts for environmental applications |
| topic | tungsten WO<sub>3</sub> deNO<sub>x</sub> VOC photocatalysis sensor |
| url | https://www.mdpi.com/2073-4344/11/6/703 |
| work_keys_str_mv | AT fabiencan tungstenbasedcatalystsforenvironmentalapplications AT xaviercourtois tungstenbasedcatalystsforenvironmentalapplications AT danielduprez tungstenbasedcatalystsforenvironmentalapplications |