Multilayer porous Pd-doped SnO2 thin film: Preparation and H2 sensing performance
| Autor: | Mengyi Tian, Jun Ren, Zili Zhang, Shiyun Zhang, Chenbo Yin, Junjing Zhou |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
High concentration Materials science Morphology (linguistics) Hydrogen Process Chemistry and Technology Doping chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound chemistry Chemical engineering 0103 physical sciences Materials Chemistry Ceramics and Composites Polystyrene Thin film 0210 nano-technology Porosity |
| Zdroj: | Ceramics International. 47:28429-28436 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2021.06.260 |
| Popis: | Porous pure and Pd-doped SnO2 films are prepared using sol-gel synthesis with polystyrene (PS) microspheres as the template. Different characterizations are performed to analyze the microstructure and morphology of the films. The sensing performance of the films at various temperatures and hydrogen concentrations is investigated. Results show that high concentration of PS template significantly influences the continuity of films and the H2 sensing performance. The porous SnO2 film with 0.1 wt% PS microspheres exhibits the best performance. At 225 °C, the response magnitude of the porous 1 mol% Pd-doped SnO2 thin film to 1000 ppm H2 is 93.18, which is approximately 10.58 times of the pure sample. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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