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In situ observation of photocatalytic reaction by photoacoustic spectroscopy : Detection of heat of exothermic photocatalytic reaction

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Title: In situ observation of photocatalytic reaction by photoacoustic spectroscopy : Detection of heat of exothermic photocatalytic reaction
Authors: Murakami, Naoya Browse this author
Abe, Ryu Browse this author →KAKEN DB
Ohtani, Bunsho Browse this author →KAKEN DB
Issue Date: 21-Jan-2008
Publisher: Elsevier
Journal Title: Chemical Physics Letters
Volume: 451
Issue: 4-6
Start Page: 316
End Page: 320
Publisher DOI: 10.1016/j.cplett.2007.12.014
Abstract: Modulation-frequency dependent photoacoustic (PA) spectroscopy was applied to gold-deposited titanium(IV) oxide powders in the presence of adsorbed methanol in order to detect the PA signal owing to phenomena occurring during photocatalytic reactions, e.g., release of reaction heat. Analysis of peak frequency of Helmholtz resonance provided qualitative information on changes in gas composition induced by photocatalytic reactions (oxidation or dehydrogenation of methanol), which depended on the presence or absence of oxygen. The PA signal attributable to heat of photocatalytic reaction was observed by canceling the effect of changes in gas composition using two kinds of modulated light as excitation and non-excitation for photocatalytic reaction.
Relation: http://www.sciencedirect.com/science/journal/00092614
Type: article (author version)
URI: http://hdl.handle.net/2115/33778
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: 大谷 文章

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