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J Am Chem Soc. 2009 Feb 25;131(7):2615-20. doi: 10.1021/ja807769r.

Electrolyte-dependent electrosynthesis and activity of cobalt-based water oxidation catalysts.

Author information

1
Department of Chemistry, 6-335, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.

Abstract

Electrolysis of Co(2+) in phosphate, methylphosphonate, and borate electrolytes effects the electrodeposition of an amorphous highly active water oxidation catalyst as a thin film on an inert anode. Electrodeposition of a catalytically competent species immediately follows oxidation of Co(2+) to Co(3+) in solution. Methylphosphonate and borate electrolytes support catalyst activity comparable to that observed for phosphate. Catalytic activity for O(2) generation in aqueous solutions containing 0.5 M NaCl is retained for catalysts grown from phosphate electrolyte.

PMID:
19183057
DOI:
10.1021/ja807769r

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