期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 34, 期 -, 页码 68-72出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2013.05.019
关键词
Oxygen reduction reaction; N, Co-codoped carbon electrocatalyst; Soy milk; Cobalt salts; Carbon dots; Polypyrrole
资金
- National Natural Science Foundation of China [200935003, 21075116]
- 973 projects [2011CB911002, 2010CB933603]
Nitrogen and cobalt codoped carbon electrocatalyst using soy milk and cobalt salts as precursors has been examined for its electrocatalytic activity toward oxygen reduction reaction (ORR). Carbon dots (C-d) were first synthesized via hydrothermal treatment of soy milk. Then, cobalt (II) nitrate was incorporated with C-d via heat treatment to generate nitrogen and cobalt codoped carbon composites (Co/C). When polypyrrole was introduced in the synthetic process, carbon composites with higher nitrogen and cobalt contents (Co/N/C) than Co/C were obtained, which exhibited high electrocatalytic activity, excellent methanol crossover effect, and good stability toward ORR in alkaline solutions. (C) 2013 Elsevier B.V. All rights reserved.
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