期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 46, 期 46, 页码 23694-23701出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2021.04.179
关键词
Electrocatalysts; Strong electrostatic adsorption; Oxygen reduction reaction
资金
- National Natural Science Foundation of China [21476071]
- Research Centre of Analysis and Test of East China University of Science and Technology
This study introduces a novel Cu and N co-doped carbon foam catalyst prepared by strong electrostatic adsorption method, exhibiting high ORR performance and long-term durability. The outstanding performance of the catalyst is attributed to high specific surface area, porous carbon matrix doped with multiple N atoms, and uniform active sites induced by the SEA method.
The development of non-precious metal catalysts to replace scarce and costly Pt-based catalysts is crucial for oxygen reduction reaction (ORR), which involves various electrochemical energy conversions, such as fuel cells and metal-air batteries. However, it is still a challenge to devise a simpler method to obtain high-performance non-noble metal catalyst, which can be used for large-scale production. Herein, Cu and N co-doped mesocellular carbon foam (n-Cu/NC) has been developed by strong electrostatic adsorption (SEA) method, which inherits the original morphology of carbon foam, exhibiting high ORR performance with a half-wave potential of 0.825 V vs. RHE and excellent long-term durability. The outstanding performance of n-Cu/NC is attributed to the high specific surface area, hierarchical porous carbon matrix doped by multiple N atoms and uniform Cu2O/CuO active sites induced by the SEA method. The strategy of SEA method is applied to the preparation of carbon-supported catalysts, which shows great potential in the design and large-scale production of M and N co-doped carbon materials. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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