Issue 11, 2013

Cobalt and nitrogen-cofunctionalized graphene as a durable non-precious metal catalyst with enhanced ORR activity,

Abstract

We demonstrated a facile method to synthesize nanosheet-like cobalt–nitrogengraphene (Co–N–GN) composites acting as a highly active non precious metal-based catalyst for oxygen reduction reaction (ORR). Polypyrrole/graphene oxide (PPy/GO) nanocomposites were first synthesized via in situ polymerization at room temperature. Then, cobalt(II) nitrate was directly incorporated into the PPy/GO hybrids via annealing heat treatment to generate Co–N–GN composites. The as-synthesized Co–N–GN composites exhibited an extraordinary electrocatalytic performance towards ORR comparable to commercial Pt/C, for instance, high onset potential, superior methanol tolerance, and excellent stability in alkaline medium, making them the state-of-the-art non-precious metal ORR electrocatalysts for electrochemical energy applications.

Graphical abstract: Cobalt and nitrogen-cofunctionalized graphene as a durable non-precious metal catalyst with enhanced ORR activity,

Supplementary files

Article information

Article type
Paper
Submitted
30 Dez 2012
Accepted
18 Jan 2013
First published
18 Jan 2013

J. Mater. Chem. A, 2013,1, 3593-3599

Cobalt and nitrogen-cofunctionalized graphene as a durable non-precious metal catalyst with enhanced ORR activity,

S. Jiang, C. Zhu and S. Dong, J. Mater. Chem. A, 2013, 1, 3593 DOI: 10.1039/C3TA01682J

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