In-situ MIR-IR observation of peroxo species on anatase TiO2 particle during oxygen photoevolution reaction

• 辻 悦司

  Division of Chemistry, Graduate School of Engineering Science, Osaka University

• 福井 賢一

  Division of Chemistry, Graduate School of Engineering Science, Osaka University

• 今西 哲士

  Division of Chemistry, Graduate School of Engineering Science, Osaka University

書誌事項

タイトル別名

• <i>In-situ</i> MIR-IR Observation of Peroxo Species on Anatase TiO₂ Particle during Oxygen Photoevolution Reaction

抄録

The peroxo species on ST-01 anatase TiO₂ particles in contact with FeCl₃ aqueous solution during oxygen photoevolution were investigated by in-situ MIR-IR absorption spectroscopy. The peaks assigned to the peroxo species (TiOOH and bridging O-O) were generated by UV-irradiation, though observed vibrational energy of bridging O-O species was largely shifted from that of rutile TiO₂ particles (TIO-3). The observed difference between both particles was mainly attributable to the difference in the local surface structure of TiO₂. The existence of unknown reaction paths to consume bridging O-O species without reacting with photogenerated holes was suggested from the observation of sequential change of absorption intensity.

収録刊行物

• Electrochemistry

  Electrochemistry 79 (10), 787-789, 2011

  公益社団法人　電気化学会

キーワード

• TiO₂
• Peroxo Species
• <i>In-Situ</i> MIR-IR
• Oxygen Photoevolution

詳細情報

• CRID: 1390001206495963264
• NII論文ID: 10029482751
• NII書誌ID: AN00151637
• DOI: 10.5796/electrochemistry.79.787
• COI: 1:CAS:528:DC%2BC3MXhtleit77I
• ISSN: 21862451
• ISSN: 13443542
• NDL書誌ID: 11261469
• Web Site: http://id.ndl.go.jp/bib/11261469
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I11261469
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/79/10/79_10_787/_pdf
• 本文言語コード: en
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