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

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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.
Type: article (author version)
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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