On the Formal Redox Potential of Oxygen Reduction Reaction at Iron Phthalocyanine/Graphene Composite Electrode in Alkaline Media

• OHTSUKA Misako

  Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology

• KITAMURA Fusao

  Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology

抄録

The redox reaction of iron phthalocyanine (FePc) combined with electrochemically-reduced graphene oxide (ER-GO) was investigated as a function of FePc fraction. A FePc/ER-GO/GC electrode was fabricated and the redox response of Fe^3+/2+ couple was analyzed by cyclic voltammetry. The formal potential was observed to change with the FePc fraction, and the most positive value was obtained at the full monolayer coverage. The onset potential of oxygen reduction reaction at the fabricated electrode shifted linearly with the formal potential of FePc. Such a coverage-dependent potential shift was explained in terms of the electronic interaction between FePc and substrate graphene surface based on the X-ray photoelectron spectroscopy as well as the theoretical DFT calculation of a model adsorption system.

収録刊行物

• Electrochemistry

  Electrochemistry 83 (5), 376-380, 2015

  公益社団法人　電気化学会

キーワード

• Graphene
• Iron Phthalocyanine
• Oxygen Reduction Reaction
• Electronic Structure

詳細情報

• CRID: 1390001206498340992
• NII論文ID: 130005067088
• NII書誌ID: AN00151637
• DOI: 10.5796/electrochemistry.83.376
• ISSN: 21862451
• ISSN: 13443542
• NDL書誌ID: 026362393
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026362393
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/83/5/83_14-E00140/_pdf
• 本文言語コード: en
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• 抄録ライセンスフラグ: 使用可