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Issue 6, 2014
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A high-performance electrocatalyst for oxygen reduction based on reduced graphene oxide modified with oxide nanoparticles, nitrogen dopants, and possible metal-N-C sites

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Abstract

Non-noble metal (NNM) electrocatalysts with performances comparable with or superior to Pt are highly desirable for fuel cells and metal-air batteries, but remain rare. Herein, we report a new NNM electrocatalyst derived from reduced graphene oxide (rGO), dual nitrogen-containing ligands, and iron and cobalt salts. Remarkably, the onset potential and half-wave potential (E1/2) of the obtained electrocatalyst shifts 5 and −23 mV, respectively, relative to commercial Pt/C at a standard loading of 20 μgpt cm−2 toward an oxygen reduction reaction (ORR) in alkaline solutions. Additionally, the electrocatalyst is much better than the Pt/C in terms of durability and tolerance to methanol.

Graphical abstract: A high-performance electrocatalyst for oxygen reduction based on reduced graphene oxide modified with oxide nanoparticles, nitrogen dopants, and possible metal-N-C sites

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Article information


Submitted
16 Oct 2013
Accepted
01 Nov 2013
First published
01 Nov 2013

J. Mater. Chem. A, 2014,2, 1631-1635
Article type
Communication

A high-performance electrocatalyst for oxygen reduction based on reduced graphene oxide modified with oxide nanoparticles, nitrogen dopants, and possible metal-N-C sites

Y. Xie, H. Li, C. Tang, S. Li, J. Li, Y. Lv, X. Wei and Y. Song, J. Mater. Chem. A, 2014, 2, 1631
DOI: 10.1039/C3TA14153E

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