Thermal water splitting on the WO3 surface-experimental proof
| Autor: | Nicolae Barsan, Udo Weimar, Anna Staerz, Anne Hémeryck, Arne Kobald, Tamara Russ |
|---|---|
| Přispěvatelé: | University of Tübingen, Équipe Modélisation Multi-niveaux des Matériaux (LAAS-M3), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Surface (mathematics)
Materials science Hydrogen Thermal water DRIFT Spectroscopy chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences 7. Clean energy DFT Nanomaterials Experimental proof WO3 Materials Chemistry Electrochemistry Hydrogen evolution Humidity [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Hydrogen Evolution 0104 chemical sciences Electronic Optical and Magnetic Materials [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry Chemical engineering chemistry 13. Climate action Gas Phase Water Splitting 0210 nano-technology |
| Zdroj: | ACS Applied Electronic Materials ACS Applied Electronic Materials, 2020, 2 (10), pp.3254-3262. ⟨10.1021/acsaelm.0c00577⟩ ACS Applied Electronic Materials, American Chemical Society, 2020, 2 (10), pp.3254-3262. ⟨10.1021/acsaelm.0c00577⟩ |
| ISSN: | 2637-6113 |
| DOI: | 10.1021/acsaelm.0c00577⟩ |
| Popis: | International audience; Here, the splitting of water from humidity at the surface of WO 3 is reported. The production of hydrogen occurs under mild conditions, at 300 °C in the presence of humidity. Using operando diffuse reflectance infrared Fourier transform spectroscopy and DC resistance measurements complemented with DFT calculations, it was possible to elucidate the temperature dependent surface reactions of WO 3 with humidity. By examining multiple different nanomaterials at 300°C, it was found that the oxidation of the surface by humidity is generally valid for WO 3. The evolution of hydrogen was detected using catalytic conversion measurements. In addition to the evolution of hydrogen, understanding the interaction between the surface and humidity is a prerequisite for the optimized use of WO 3 for a wide array of applications, such as optical sensors or memristors. |
| Databáze: | OpenAIRE |
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