Nano-sized layered Mn oxides as promising and biomimetic water oxidizing catalysts for water splitting in artificial photosynthetic systems

J Photochem Photobiol B. 2014 Apr 5;133:124-39. doi: 10.1016/j.jphotobiol.2014.03.005. Epub 2014 Mar 19.

Abstract

One challenge in artificial photosynthetic systems is the development of artificial model compounds to oxidize water. The water-oxidizing complex of Photosystem II which is responsible for biological water oxidation contains a cluster of four Mn ions bridged by five oxygen atoms. Layered Mn oxides as efficient, stable, low cost, environmentally friendly and easy to use, synthesize, and manufacture compounds could be considered as functional and structural models for the site. Because of the related structure of these Mn oxides and the catalytic centre of the active site of the water oxidizing complex of Photosystem II, the study of layered Mn oxides may also help to understand more about the mechanism of water oxidation by the natural site. This review provides an overview of the current status of layered Mn oxides in artificial photosynthesis and discuss the sophisticated design strategies for Mn oxides as water oxidizing catalysts.

Keywords: Artificial photosynthesis; Layered Mn oxide; Photosystem II; Water oxidation.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Biocompatible Materials / chemistry*
  • Biocompatible Materials / metabolism
  • Biomimetics
  • Catalysis
  • Manganese Compounds / chemistry*
  • Nanostructures / chemistry*
  • Oxidation-Reduction
  • Oxides / chemistry*
  • Photosystem II Protein Complex / chemistry
  • Photosystem II Protein Complex / metabolism
  • Water / chemistry*

Substances

  • Biocompatible Materials
  • Manganese Compounds
  • Oxides
  • Photosystem II Protein Complex
  • Water
  • manganese oxide