Highly porous tungsten-oxide-based films obtained by spray-gel for gas sensing applications
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| Format: | Artículo científico |
| Language: | en |
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Sociedad Mexicana de Física A.C.
2006
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| _version_ | 1876430167758340096 |
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| author | J.L. Solis |
| author_facet | J.L. Solis |
| contents | Highly porous tungsten-oxide-based films obtained by spray-gel for gas sensing applications J.L. Solis J. Rodríguez W. Estrada Física, Astronomía y Matemáticas tin oxide pyrolysis gas sensor Tungsten oxide Highly porous mixed WO3–SnO2 films have been prepared from an aqueous solution of SnCl4.5H2O and polytungsten gel with a molar ratio of Sn/W from 0 to 1. These solutions were sprayed on to alumina substrates at 220°C. The obtained films were annealed at 600°C in air for 3 h. The annealed films were composed of a mixture of WO3 and SnO2 phases. The gas sensitivity to butanol and ethanol vapors is enhanced when the Sn/W molar ratio increases in the film by up to 0.1, with further increments to this proportion the sensitivity decreases. 2006 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57028295009 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.52 |
| format | Artículo científico |
| id | redalyc_57028295009 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Highly porous tungsten-oxide-based films obtained by spray-gel for gas sensing applications J.L. Solis Física, Astronomía y Matemáticas tin oxide pyrolysis gas sensor Tungsten oxide Highly porous tungsten-oxide-based films obtained by spray-gel for gas sensing applications J.L. Solis J. Rodríguez W. Estrada Física, Astronomía y Matemáticas tin oxide pyrolysis gas sensor Tungsten oxide Highly porous mixed WO3–SnO2 films have been prepared from an aqueous solution of SnCl4.5H2O and polytungsten gel with a molar ratio of Sn/W from 0 to 1. These solutions were sprayed on to alumina substrates at 220°C. The obtained films were annealed at 600°C in air for 3 h. The annealed films were composed of a mixture of WO3 and SnO2 phases. The gas sensitivity to butanol and ethanol vapors is enhanced when the Sn/W molar ratio increases in the film by up to 0.1, with further increments to this proportion the sensitivity decreases. 2006 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57028295009 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.52 |
| title | Highly porous tungsten-oxide-based films obtained by spray-gel for gas sensing applications |
| topic | Física, Astronomía y Matemáticas tin oxide pyrolysis gas sensor Tungsten oxide |
| url | https://www.redalyc.org/articulo.oa?id=57028295009 |