Co1−xS-Graphene Hybrid: A High-Performance Metal Chalcogenide Electrocatalyst for Oxygen Reduction

Co1−xS-Graphene Hybrid: A High-Performance Metal Chalcogenide Electrocatalyst for Oxygen Reduction

A hybrid electrocatalyst for the oxygen reduction reaction (ORR), consisting of Co1−xS nanoparticles directly nucleated and grown on sheets of reduced graphene oxide (RGO; see SEM image), was prepared by a mild solution‐phase reaction followed by an annealing step. The Co1−xS–RGO hybrid has the high...

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Bibliographic Details
Published in:Angewandte Chemie International Edition Vol. 50; no. 46; pp. 10969 - 10972
Main Authors: Wang, Hailiang, Liang, Yongye, Li, Yanguang, Dai, Hongjie
Format: Journal Article
Language:English
Published: Weinheim WILEY-VCH Verlag 11-11-2011
WILEY‐VCH Verlag
Wiley Subscription Services, Inc
Edition:International ed. in English
Subjects:
chalcogenides
cobalt
electrochemistry
nanoparticles
oxygen reduction
Online Access:Get full text
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Summary:A hybrid electrocatalyst for the oxygen reduction reaction (ORR), consisting of Co1−xS nanoparticles directly nucleated and grown on sheets of reduced graphene oxide (RGO; see SEM image), was prepared by a mild solution‐phase reaction followed by an annealing step. The Co1−xS–RGO hybrid has the highest catalytic performance of all cobalt chalcogenide based ORR catalysts, as revealed inter alia by measurements with a rotating‐disk electrode (see picture; RHE = reversible hydrogen electrode).
Bibliography:This work is supported partially by ONR and a Stanford Graduate Fellowship.
istex:6BD080DE47489E8EDA3A690C06524B036BEAB279
ONR
ArticleID:ANIE201104004
ark:/67375/WNG-3226CP3F-7
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201104004