Anodic deposition of a robust iridium-based water-oxidation catalyst from organometallic precursors

James D. Blakemore, Nathan D. Schley, Gerard W. Olack, Christopher D. Incarvito, Gary W. Brudvig, Robert H. Crabtree

Research output: Contribution to journalArticle

172 Citations (Scopus)

Abstract

Artificial photosynthesis, modeled on natural light-driven oxidation of water in Photosystem II, holds promise as a sustainable source of reducing equivalents for producing fuels. Few robust wateroxidation catalysts capable of mediating this difficult four-electron, four-proton reaction have yet been described. We report a new method for generating an amorphous electrodeposited material, principally consisting of iridium and oxygen, which is a robust and long-lived catalyst for water oxidation, when driven electrochemically. The catalyst material is generated by a simple anodic deposition from Cp*Ir aqua or hydroxo complexes in aqueous solution. This work suggests that organometallic precursors may be useful in electrodeposition of inorganic heterogeneous catalysts.

Original languageEnglish
Pages (from-to)94-98
Number of pages5
JournalChemical Science
Volume2
Issue number1
DOIs
Publication statusPublished - May 9 2011

ASJC Scopus subject areas

  • Chemistry(all)

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