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Cobalt analogs of Ru-based water oxidation catalysts: Overcoming thermodynamic instability and kinetic lability to achieve electrocatalytic O 2 evolution

Title
Cobalt analogs of Ru-based water oxidation catalysts: Overcoming thermodynamic instability and kinetic lability to achieve electrocatalytic O 2 evolution
Authors
Rigsby M.L.Mandal S.Nam W.Spencer L.C.Llobet A.Stahl S.S.
Ewha Authors
남원우Antoni Llobet
SCOPUS Author ID
남원우scopus
Issue Date
2012
Journal Title
Chemical Science
ISSN
2041-6520JCR Link
Citation
vol. 3, no. 10, pp. 3058 - 3062
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Several binuclear cobalt(iii) complexes that mimic Ru-based water oxidation catalysts have been prepared. The initial complexes exhibited thermodynamic instability and kinetic lability that complicated efforts to use these cobalt complexes as electrocatalysts for water oxidation. Binuclear cobalt(iii) complexes supported by a bridging bispyridylpyrazolate (bpp) ligand overcome these limitations. Two bpp-ligated dicobalt(iii)-peroxo complexes were prepared and structurally characterized, and electrochemical investigation of these complexes supports their ability to serve as molecular electrocatalysts for water oxidation under acidic conditions (pH 2.1). © 2012 The Royal Society of Chemistry.
DOI
10.1039/c2sc20755a
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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