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

Murakami, Naoya; Abe, Ryu; Ohtani, Bunsho

Chemical Physics Letters, 2008, 451(4-6), 316-320

Permalink : https://hdl.handle.net/2115/33778

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アクセス権
open access
URI
https://hdl.handle.net/2115/33778
タイトル
In situ observation of photocatalytic reaction by photoacoustic spectroscopy : Detection of heat of exothermic photocatalytic reaction
著者
Murakami, Naoya ; Abe, Ryu ; Ohtani, Bunsho
著者名
Murakami, Naoya
e-Rad_Researcher
60356376
著者名
Abe, Ryu
e-Rad_Researcher
80176924
著者名
Ohtani, Bunsho
言語
英語
発行日
2008-01-21
出版者
Elsevier
収録物名
Chemical Physics Letters
巻(号)
451(4-6)
ページ
316-320
抄録
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.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0009-2614
NCID
AA00602122
関連情報
URI
http://www.sciencedirect.com/science/journal/00092614
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.cplett.2007.12.014