Chemical Research in Chinese Universities ›› 2022, Vol. 38 ›› Issue (2): 396-401.doi: 10.1007/s40242-022-1465-7

• Articles • Previous Articles     Next Articles

Stable Thiophene-sulfur Covalent Organic Frameworks for Oxygen Reduction Reaction(ORR)

CHANG Shunkai, LI Cuiyan, LI Hui, ZHU Liangkui, FANG Qianrong   

  1. State Key Laboratory of Inorganic Synthesis & Preparative Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2021-11-19 Revised:2021-12-23 Online:2022-04-01 Published:2022-05-18
  • Contact: FANG Qianrong, ZHU Liangkui E-mail:qrfang@jlu.edu.cn;zhuliangkui@jlu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos.22025504, 21621001, 21390394), the ″111″ Project of China (Nos.BP0719036, B17020), the China Postdoctoral Science Foundation (Nos.2020TQ0118, 2020M681034) and the Program for JLU Science and Technology Innovative Research Team, China.

Abstract: Exploring novel materials deriving from earth resources to substitute for platinum(Pt) electrocatalyst to promote oxygen reduction reaction(ORR) of fuel cell cathode is very important. Herein, we have exploited two crystallographic thiophene-sulfur covalent organic frameworks(COFs), termed JUC-607 and JUC-608, as electrocatalysts that exhibited good ORR performances. These thiophene-sulfur COFs exhibited high stability, and their functional groups acting as active centers in the ORR can be precisely determined. Notably, due to a larger aperture for mass transfer and electrons transport, JUC-608 displayed a growing electrochemical performance, leading to a better ORR activity. Thus, this study will provide a new strategy for designing heteroatom-based COF materials for high-performance electrochemical catalysis.

Key words: Covalent organic framework(COF), Oxygen reduction reaction, Thiophene-sulfur