Gold nanoparticles embedded within mesoporous cobalt oxide enhance electrochemical oxygen evolution

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

91 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)82-86
Journal / PublicationChemSusChem
Volume7
Issue number1
Online published11 Dec 2013
Publication statusPublished - Jan 2014
Externally publishedYes

Abstract

Gold nanoparticles incorporated in mesoporous cobalt oxides (Au/mCo 3O4) are fabricated by a nanocasting method using porous silica as the hard template. The Au/mCo3O4 material exhibits enhanced catalytic activity towards water oxidation compared to bulk mCo3O4 in both alkaline and neutral solutions. The superior catalytic performance is ascribed to the synergistic effect of electronegative metal gold, which facilitates the generation of active Co IV sites, as well as the large specific surface area and the preferential exposure of catalytic active crystalline lattice.

Research Area(s)

  • Cobalt oxides, Electrocatalysis, Gold nanoparticles, Mesoporous materials, Water splitting