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Multilayer porous Pd-doped SnO2 thin film: Preparation and H2 sensing performance
- Source :
- Ceramics International. 47:28429-28436
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- 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.
- Subjects :
- 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
Subjects
Details
- ISSN :
- 02728842
- Volume :
- 47
- Database :
- OpenAIRE
- Journal :
- Ceramics International
- Accession number :
- edsair.doi...........4e8b6e75e6a0867ac78fc352a08e9f53