摘要
质子交换膜燃料电池因其环境适应性强、启动快、续驶里程长、加氢时间快等诸多优点,被视为未来汽车动力来源的终极解决方案。燃料电池大规模应用需要比碳载铂氧还原活性更高的电催化剂,并满足高耐久性和低成本的要求,铂基催化剂可以显著提高贵金属质量比活性,改善耐久性,从而降低电催化剂成本。本文总结了今年铂基氧还原催化剂的研究进展,对比不同的制备方法、形貌与暴露晶面对铂基催化剂的影响。
Proton Exchange Membrane Fuel Cell(PEMFC)is regarded as the ultimate solution for future ve-hicle power source due to the strong environmental adaptability,fast start-up,long driving range and fast filling time.For the large scale applications of fuel cells,higher oxygen reduction activity,longer durability and lower cost of catalysts are needed than Pt/carbon catalysts.Pt-based catalysts increase significantly noble metal mass specific activity and improve the durability.These characteristics reduce the cost.This paper reviewed the recent achievements in the Pt-based oxy-gen reduction catalysts,compared and analyzed the effects of the synthetic processes,morphologies and facets and oxidation resistant support on mass specific activities and durabilities of alloy catalysts and core shell ones.
出处
《化学工程与技术》
CAS
2019年第5期374-378,共5页
Hans Journal of Chemical Engineering and Technology
