Plausible roles of carbonate in catalytic water oxidation

Amir Mizrahi, Dan Meyerstein

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

8 Scopus citations

Abstract

Bicarbonate/carbonate are efficient co-catalysts in a variety of water oxidation processes. Their role in these processes is due to one or more of the following: the redox potential of the couple CO3 ⋅−/CO3 2– is considerably lower than that of OH[rad]/H2O or that of OH[rad]/OH. The CO3 ⋅− thus formed is transformed into HCO4 /H2O2. The latter are easily oxidized to form O2. Furthermore CO3 2– as a ligand stabilizes transition metal complexes at high-oxidation states that are essential intermediates in the catalytic processes. Finally, the carbonate facilitates proton transfer near the anode that is often an essential step.

Original languageEnglish
Title of host publicationWater Oxidation Catalysts
EditorsRudi van Eldik, Colin D. Hubbard
PublisherAcademic Press Inc.
Pages343-360
Number of pages18
ISBN (Print)9780128160824
DOIs
StatePublished - 1 Jan 2019

Publication series

NameAdvances in Inorganic Chemistry
Volume74
ISSN (Print)0898-8838

Keywords

  • Carbonate anion radical
  • Carbonate complexes
  • Electrocatalysis
  • Peroxide formation
  • Photocatalysis

ASJC Scopus subject areas

  • Inorganic Chemistry

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