期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 579, 期 -, 页码 598-606出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2020.06.109
关键词
Porphyrin; Covalent organic polymer; Hydrogen evolution reaction; Oxygen evolution reaction; Synergistic effect
资金
- China Postdoctoral Foundation [2016M601733, 2018T110446]
- National Natural Science Foundation of China [51506077, 21171076]
- Natural Science Foundation of Jiangsu Province [BK20150488]
- Natural Science Foundation of Jiangsu High School [15KJB430007, 15KJB610003]
- Research Foundation of Jiangsu University [13JDG066, 15JDG156]
Covalent organic polymers have attracted much attention due to their high specific surface area, superlative porosity, and diversity in electronic structure. Herein, a novel porous cobalt-porphyrin-based covalent organic polymer (CoCOP) is fabricated through the Schiff-base condensation reaction, which is used as a difunctional electrocatalyst for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The CoCOP possesses a high surface area and strong synergistic effect between the cobalt-porphyrins and the C=N groups, resulting in efficient HER and OER performances. The CoCOP required relatively low overpotentials for both HER (121 mV to reach 1.0 mA cm(-2) and 310 mV to reach 10 mA cm(-2) ) and OER (166 mV to reach 1.0 mA cm(-2) and 350 mV to reach 10 mA cm(-2) ) in alkaline media. This work may provide a new idea for the design of non-noble metal-based coordination polymers with excellent structure and high electrocatalytic performance. (C) 2020 Elsevier Inc. All rights reserved.
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