Title

Heterojunctions of silver-iron oxide on graphene for laser-coupled oxygen reduction reactions

College

College of Science

Department/Unit

Chemistry

Document Type

Article

Source Title

Chemical Communications

Volume

54

Issue

57

First Page

7900

Last Page

7903

Publication Date

1-1-2018

Abstract

We report a two-step hybridization of N-doped graphene and Ag-decorated Fe2O3 hematite to realize a balanced oxygen adsorption/desorption equilibrium and a laser-coupled ORR (LORR). The stable plateau currents with n values of 3.9 in a wide potential range (0.2-0.7 V) and 7.5% peroxide inhibition of the LORR are found to be directly associated with the Ag/Fe2O3 heterojunction, where interactions of semiconductor band gap excitation and plasmonic resonance-induced hot electrons are proposed to occur. © 2018 The Royal Society of Chemistry.

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Digitial Object Identifier (DOI)

10.1039/c8cc03136c

Disciplines

Chemistry

Keywords

Iron oxides; Oxygen--Absorption and adsorption

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