Abstract
Recovery properties after H2S catalytic poisoning of catalytic-type gas sensor with photo-catalysts and UV radiation have been examined. Each sensing material of the sensor consists of Pd, Pt supported on γ-Al2O3 and Pd/titanate, Pt/titanate nanotubes or TiO2 particles. Pd/titanate and Pt/titanate nanotubes photo-catalyst were synthesized by hydrothermal synthesis method. All the sensors were deactivated after 500 ppm H2S exposure for 20 h. The sensors with Pd/titanate or Pt/titanate nanotubes showed regenerated voltage response under UV radiation. However the sensor with TiO2 particles showed negligible regenerated voltage response. Regenerated voltage response with Pd/titanate or Pt/titanate nanotubes may stem from location of Pd or Pt catalyst on the titanate nanotube photo-catalyst.
Original language | English |
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Pages (from-to) | 172-178 |
Number of pages | 7 |
Journal | Current Applied Physics |
Volume | 9 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2009 Jan |
Bibliographical note
Funding Information:This research was performed for the Hydrogen Energy R&D Center, one of the 21st Century Frontier R&D Program, funded by the Ministry of Science and Technology of Korea.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Physics and Astronomy(all)