Back

Title	en Improvement of a Real Gas-Sensor for the Origin of Methane Selectivity Degradation by mu-XAFS Investigation
Creator	en Wada, Takahiro NRID 1000010632317 en Murata, Naoyoshi en Suzuki, Takuya en Uehara, Hiromitsu en Nitani, Hiroaki en Niwa, Yasuhiro en Uo, Motohiro NRID 1000020242042 en Asakura, Kiyotaka NRID 1000060175164
Accessrights	open access
Rights	en ©The Author(s) 2015. This article is published with open access at Springerlink.com http://creativecommons.org/licenses/by/2.0/ en Creative Commons Attribution 2.0 Generic
Subject	Other en Micro gas sensor Other en Micro-XAFS Other en Pd/Al2O3 Other en Deactivation NDC 501
Description	Abstract en 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.
Publisher	en Springer
Date	Issued2015-07
Language	eng
Resource Type	journal article
Version Type	VoR
Identifier	HDL http://hdl.handle.net/2115/59551
Relation	isIdenticalTo DOI https://doi.org/10.1007/s40820-015-0035-7
Journal	PISSN 2311-6706 en Nano-micro letters Volume Number7 Issue Number3 Page Start255 Page End260
File	fulltext 40820_2014_0804.pdf 735.06 KB (application/pdf) Issued2015-07
Oaidate	2023-07-26