金属间化合物
纳米晶
甲酸
催化作用
甲醇
退火(玻璃)
纳米技术
化学
化学工程
化学计量学
氧还原反应
电催化剂
材料科学
燃料电池
电化学
冶金
物理化学
有机化学
工程类
电极
合金
作者
Sumei Han,Caihong He,Qinbai Yun,Moying Li,Wei Chen,Wenbin Cao,Qipeng Lu
标识
DOI:10.1016/j.ccr.2021.214085
摘要
In recent years, Pd-based intermetallic nanocrystals (INCs) have attracted widespread attention as electrocatalysts for fuel cells. The definite composition and predictable control over structural, geometric and electronic effects of Pd-based INCs endow them outstanding catalytic activity and high stability. Here, we present a comprehensive review about recent research progress of Pd-based INCs as catalysts for fuel cells. Firstly, we summarize the synthetic methods of Pd-based INCs with fixed stoichiometry and ordered atomic structure, such as thermal annealing, wet-chemical method. In particular, the control of morphology, size and crystal structure of Pd-based INCs is emphasized. Secondly, we highlight the applications of Pd-based INCs for electrocatalytic reactions in fuel cells, including oxygen reduction reaction, methanol oxidation reaction, ethanol oxidation reaction and formic acid oxidation reaction. The strategies for improving the electrocatalytic performance of Pd-based INCs are systematically discussed. Finally, the existing challenges and promising future research directions in this field are proposed.
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