Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 28, Issue -, Pages 100-103Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2012.12.016
Keywords
Silver-based catalyst; Reduced graphene oxide; Oxygen reaction reduction; Alkaline fuel cell
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Funding
- New & Renewable Energy program of the Korea Institute of Energy Technology Evaluation and Planning [20103020030020112200]
- Korea government Ministry of Knowledge and Economy
- Global Frontier R&D Program on Center for Multiscale Energy System by the Korea Government [0420-20120126]
- Research Institute for Solar and Sustainable Energies, GIST
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Uniformly dispersed Ag nanoparticles were successfully obtained on reduced graphene oxide (RGO) through the simultaneous reduction of Ag and graphene oxide (GO) without surfactant by controlling growth of Ag nanoparticles at low temperatures. Using this method, even a high metal loading of 60 wt.% Ag with a mean diameter of less than 10 nm could be achieved over the RGO sheets. The oxygen reduction reaction activity was investigated using an RGO-supported Ag catalyst (Ag/RGO) in a 0.1 M NaOH solution, and the kinetic parameters were determined using the rotating disk electrode (ROE) technique. For comparison, a commercial carbon-supported Ag catalyst (Ag/C) was investigated under identical experimental conditions. (C) 2012 Elsevier B.V. All rights reserved.
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