Journal of Shanghai Jiao Tong University ›› 2021, Vol. 55 ›› Issue (9): 1049-1057.doi: 10.16183/j.cnki.jsjtu.2021.009

Special Issue: 《上海交通大学学报》2021年12期专题汇总专辑 《上海交通大学学报》2021年“能源与动力工程”专题

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Effect of Preparation Process of La0.95FeO3-δ/C Composite Electrode on Preparation and Bifunctional Electrocatalytic Properties

HU Huanminga, YANG Fanb(), ZHANG Junliangb   

  1. a. China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 200240, China
    b. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2021-01-11 Online:2021-09-28 Published:2021-10-08
  • Contact: YANG Fan


In order to optimize the bifunctional electrocatalytic performance of La0.95FeO3-δ, the effects and influencing mechanism of carbon morphology, electrode ink preparation, and catalyst loading on the bifunctional electrocatalytic performance of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) were investigated. The results show that compared with La0.95FeO3-δ, the catalytic activity of La0.95FeO3-δ/C is significantly improved. The bifunctional electrocatalytic performance of La0.95FeO3-δ/C is mainly dependent on carbon morphology and electrode ink preparation. An optimum bifunctional performance is achieved in a composite electrode with 0.6 mg/cm2 La0.95FeO3-δ and 0.12 mg/cm2 EC600JD prepared by ultrasonic dispersion, ball milling, and ultrasonic dispersion. The optimized La0.95FeO3-δ/C has an excellent bifunctional electrocatalytic performance, simple preparation, and low cost, which is expected to be applied in Li-O2 batteries.

Key words: LaFeO3 perovskite, oxygen reduction reaction(ORR), oxygen evolution reaction(OER), bifunctional electrocatalyst, electrocatalysis

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