Jump to main content
Jump to site search

Issue 10, 2013
Previous Article Next Article

Effects of aqueous buffers on electrocatalytic water oxidation with an iridium oxide material electrodeposited in thin layers from an organometallic precursor

Author affiliations

Abstract

A thin layer of an amorphous, mixed-valence iridium oxide (electrodeposited from an organometallic precursor, [Cp*Ir(H2O)3]2+) is a heterogeneous catalyst among the most active and stable currently available for electrochemical water oxidation. We show that buffers can improve the oxygen-evolution activity of such thin-layer catalysts near neutral pH, but that buffer identity and concentration, as well as the solution pH, remain key determinants of long-term electrocatalyst activity and stability; for example, phosphate buffer can reduce the overpotential by up to 173 mV.

Graphical abstract: Effects of aqueous buffers on electrocatalytic water oxidation with an iridium oxide material electrodeposited in thin layers from an organometallic precursor

Back to tab navigation

Supplementary files

Publication details

The article was received on 02 Oct 2012, accepted on 11 Dec 2012 and first published on 13 Dec 2012


Article type: Paper
DOI: 10.1039/C2DT32326E
Citation: Dalton Trans., 2013,42, 3617-3622
  •   Request permissions

    Effects of aqueous buffers on electrocatalytic water oxidation with an iridium oxide material electrodeposited in thin layers from an organometallic precursor

    M. N. Kushner-Lenhoff, J. D. Blakemore, N. D. Schley, R. H. Crabtree and G. W. Brudvig, Dalton Trans., 2013, 42, 3617
    DOI: 10.1039/C2DT32326E

Search articles by author

Spotlight

Advertisements