期刊
MATERIALS LETTERS
卷 248, 期 -, 页码 109-113出版社
ELSEVIER
DOI: 10.1016/j.matlet.2019.04.011
关键词
Carbon materials; Functional; Nitrogen reduction reaction; Electrocatalysis; Metal-organic frameworks; Ammonia synthesis
资金
- National Natural Science Foundation of China [21706010]
- Natural Science Foundation of Jiangsu Province of China [BK20161200]
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University [ACGM2016-06-02, ACGM2016-06-03]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Key Laboratory of Advanced Reactor Engineering and Safety, Ministry of Education [ARES-2018-09]
In this work, electrochemical nitrogen reduction reaction (NRR) on metallic Co@N-doped carbon (NC) (Co@NC) were investigated. The Co@NC catalysts obtained via pyrolysis of a metal-organic framework precursor (ZIF-67) showed high Faraday efficiency under ambient conditions in neutral electrolytes. At -0.9 V versus Ag/AgCl, the Faraday efficiency of Co@NC achieved as high as 21.79%, surpassing most of reported catalysts under comparable conditions, while the NH3 yield rate of Co@NC reached 1.57 x 10(-10) mol s(-1) cm(-2) at the same potential. This work demonstrated that Co@NC had outstanding electrocatalytic performance for NRR. Thus it was a promising transition-metal-based catalyst in electrochemical ammonia synthesis. (C) 2019 Elsevier B.V. All rights reserved.
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