Graphene-enriched Co9S8-N-C non-precious metal catalyst for oxygen reduction in alkaline media

Gang Wu, Hoon T. Chung, Mark Nelson, Kateryna Artyushkova, Karen L. More, Christina M. Johnston, Piotr Zelenay

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

90 Scopus citations

Abstract

In this work, a non-precious metal catalyst consisting of Co 9S8 nanoparticles surrounded with nitrogen-doped graphene-like carbon (Co9S8-N-C) was developed for oxygen reduction in alkaline media. Improved activity has been measured with the Co9S8-N-C catalyst relative to Pt/C and a non-precious metal catalyst based on Fe instead of Co (Fe-N-C). An extensive physical characterization, including XRD, SEM, TEM, and XPS and electrochemical kinetic analysis was conducted to provide insight into the catalyst morphology and structure.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 11
PublisherElectrochemical Society Inc.
Pages1709-1717
Number of pages9
Edition1
ISBN (Electronic)9781607682547
ISBN (Print)9781607682547
DOIs
StatePublished - 2011
Event11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting - Boston, MA, United States
Duration: Oct 9 2011Oct 14 2011

Publication series

NameECS Transactions
Number1
Volume41
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting
Country/TerritoryUnited States
CityBoston, MA
Period10/9/1110/14/11

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