Journal
SCIENCE BULLETIN
Volume 61, Issue 1, Pages 68-77Publisher
SCIENCE PRESS
DOI: 10.1007/s11434-015-0978-6
Keywords
Carbon quantum dots; Bifunctional catalyst; Electrochemical performance
Categories
Funding
- National Basic Research Program of China [2012CB825803, 2013CB932702]
- National Natural Science Foundation of China [51422207, 51132006, 51572179, 21471106, 21501126]
- Specialized Research Fund for the Doctoral Program of Higher Education [20123201110018]
- Suzhou Planning Project of Science and Technology [ZXG2012028]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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It is highly desired for the development of efficient bifunctional electrocatalyst for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in renewable energy technologies. In this work, cobalt, nitrogen-codoped carbon was prepared by a facile one-step method and demonstrated to exhibit good electrocatalytic performance for ORR and OER via a complete four-electron process. Besides, the catalyst prepared at 900 degrees C also displayed excellent stability for both ORR and OER. Furthermore, the origin of catalytic activity was also explored, which was attributed to the synergistic effects of metallic Co and quaternary N.
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