直接硼氢化物燃料电池阴极催化剂的研究进展

Development of the Cathode Catalyst for Direct Borohydride Fuel Cell

缓慢的阴极氧还原动力学和催化剂稳定性是制约直接硼氢化物燃料电池商业化的关键因素之一。为此,研究者在提高催化剂的催化活性与稳定性和降低催化剂成本方面开展了大量的研究工作。本文在简要介绍直接硼氢化物燃料电池的工作原理和阴极氧还原反应机理的基础上,从催化剂性能和反应机理角度综述了近年来直接硼氢化物燃料电池中贵金属和非贵金属两类阴极催化剂的主要研究进展,指出了阴极催化剂研究所面临的问题,同时提出了阴极催化剂研究的新的发展方向。

The slow kinetics of oxygen reduction reaction（ORR） at cathode of direct borohydride fuel cell（DBFC） and the durability of cathode catalyst are key factors restraining the commercialization of DBFC.In recent years,many researchers have been paid attention to improve the activity and durability of the cathode catalysts and to decrease cost of the catalysts for DBFC.In this paper,the work principle and ORR mechanism of DBFC were introduced briefly.The recent progresses in the development of precious and non-precious metal materials as cathode catalyst for DBFC had been reviewed based on their catalytic performance and mechanism.The problems for the research of the cathode catalyst had been pointed out and the future developments of the cathode catalyst for DBFC also proposed.