An IrSi oxide film as a highly active water-oxidation catalyst in acidic media

We report an acid-stable Si oxide-doped Ir oxide film (IrSi oxide film), made by metal organic chemical vapour deposition (MOCVD) of an Ir(V) complex for electrochemical water-oxidation. This is a successful improvement of catalytic ability and stability depending upon the pH of Ir oxide by doping o...

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Bibliographic Details
Published inChemical communications (Cambridge, England) Vol. 51; no. 63; pp. 12589 - 12592
Main Authors Tran, Viet-Ha, Yatabe, Takeshi, Matsumoto, Takahiro, Nakai, Hidetaka, Suzuki, Kazuharu, Enomoto, Takao, Hibino, Takashi, Kaneko, Kenji, Ogo, Seiji
Format Journal Article
LanguageEnglish
Published England 14.08.2015
Subjects
Acidic oxides
Catalysts
Iridium
Media
Oxide coatings
Oxides
Silicon
Stability
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Summary:We report an acid-stable Si oxide-doped Ir oxide film (IrSi oxide film), made by metal organic chemical vapour deposition (MOCVD) of an Ir(V) complex for electrochemical water-oxidation. This is a successful improvement of catalytic ability and stability depending upon the pH of Ir oxide by doping of Si oxide. The turnover frequency (TOF) of the electrochemical water-oxidation by the IrSi oxide film is the highest of any Si oxide-doped Ir oxide materials and higher even than that of Ir oxide in acidic media.
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ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc04286k