|
Hokkaido University Collection of Scholarly and Academic Papers >
Institute for Catalysis >
Peer-reviewed Journal Articles, etc >
Improvement of a Real Gas-Sensor for the Origin of Methane Selectivity Degradation by mu-XAFS Investigation
This item is licensed under:Creative Commons Attribution 2.0 Generic
| Title: | Improvement of a Real Gas-Sensor for the Origin of Methane Selectivity Degradation by mu-XAFS Investigation |
| Authors: | Wada, Takahiro Browse this author →KAKEN DB | | Murata, Naoyoshi Browse this author | | Suzuki, Takuya Browse this author | | Uehara, Hiromitsu Browse this author | | Nitani, Hiroaki Browse this author | | Niwa, Yasuhiro Browse this author | | Uo, Motohiro Browse this author →KAKEN DB | | Asakura, Kiyotaka Browse this author →KAKEN DB |
| Keywords: | Micro gas sensor | | Micro-XAFS | | Pd/Al2O3 | | Deactivation |
| Issue Date: | Jul-2015 |
| Publisher: | Springer |
| Journal Title: | Nano-micro letters |
| Volume: | 7 |
| Issue: | 3 |
| Start Page: | 255 |
| End Page: | 260 |
| Publisher DOI: | 10.1007/s40820-015-0035-7 |
| Abstract: | We have directly investigated the chemical state of the Pd species in a real mu-gas sensor device by examining the mu-fluorescence X-ray absorption fine structure. The mu-gas sensor device was heavily damaged by a heating process in which the temperature was ill-controlled, resulting in decrease of methane selectivity. We found that the PdO in the fresh mu-gas sensor was reduced to Pd metal particles as the methane selectivity decreased. Based on the investigation results, we modified the device structure so as to heat up homogeneously. The lifetime of the sensor was then successfully increased by more than 5 years. |
| Rights: | ©The Author(s) 2015. This article is published with open access at Springerlink.com | | http://creativecommons.org/licenses/by/2.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/59551 |
| Appears in Collections: | 触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 朝倉 清高
|
