期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 1, 期 11, 页码 3593-3599出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ta01682j
关键词
-
资金
- National Natural Science Foundation of China [20935003, 21075116]
- 973 Project [2009CB930100, 2010CB933603]
We demonstrated a facile method to synthesize nanosheet-like cobalt-nitrogen-graphene (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.
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