In situ observation of photocatalytic reaction by photoacoustic spectroscopy : Detection of heat of exothermic photocatalytic reaction
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概要
- 論文の詳細を見る
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.
- Elsevierの論文
- 2008-01-21
著者
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ABE Ryu
Catalysis Research Center, Hokkaido University
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Abe Ryu
Graduate School Of Environmental Science Hokkaido University
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Ohtani Bunsho
Hokkaido Univ. Sapporo Jpn
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Ohtani Bunsho
Graduate School Of Environmental Science Hokkaido University
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Murakami Naoya
Graduate School Of Environmental Science Hokkaido University
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Abe Ryu
Hokkaido Univ. Sapporo Jpn
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