Characterization of Pt-doped SnO2 catalyst for a high-performance micro gas sensor


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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/56798

Title:	Characterization of Pt-doped SnO2 catalyst for a high-performance micro gas sensor
Authors:	Murata, Naoyoshi Browse this author
	Suzuki, Takuya Browse this author
	Kobayashi, Makoto Browse this author
	Togoh, Fumiaki Browse this author
	Asakura, Kiyotaka Browse this author →KAKEN DB
Issue Date:	7-Nov-2013
Publisher:	Royal Society of Chemistry
Journal Title:	Physical chemistry chemical physics
Volume:	15
Issue:	41
Start Page:	17938
End Page:	17946
Publisher DOI:	10.1039/C3CP52490F
PMID:	24045584
Abstract:	The atomic scale structure and its dependence on Pt concentration of a Pt-doped SnO2 (Pt-SnO2) thin film produced by a sputter-deposition method was investigated, which showed high-performance as a methane gas sensor. Extended X-ray absorption fine structure (EXAFS) and X-ray diffraction (XRD) analyses showed that Pt-SnO2 has a rutile structure similar to SnO2 crystals at less than 10 at% Pt where the Pt ion was located at the Sn position in the rutile structure. There was no evidence that Pt metal clusters were formed in the Pt-SnO2 films. The Pt-SnO2 structure became amorphous at greater than 11 at% Pt. We found a good correlation between the methane activity and local structure of Pt.
Relation:	http://pubs.rsc.org/en/journals/journalissues/cp#!issueid=cp015041&type=current&issnprint=1463-9076
Type:	article (author version)
URI:	http://hdl.handle.net/2115/56798
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

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