电化学（中英文）2026，Vol.32Issue(1)：65-76,12.DOI:10.61558/2993-074X.3588
碳载铂镍八面体纳米粒子作为质子交换膜燃料电池阴极催化剂的性能研究
Carbon Supported Octahedral PtNi Nanoparticles(Oct-PtNi/C)as a Cathode Catalyst for Proton Exchange Membrane Fuel Cells(PEMFCs)with Improved Activity and Durability
摘要
Abstract
Proton exchange membrane fuel cells(PEMFCs)are considered as a promising renewable power source.However,the massive commercial application of PEMFCs has been greatly hindered by their high expense and less-satisfied performance mainly due to the sluggish oxygen reduction reaction(ORR)kinetics even on state-of-the-art Pt catalyst.Octahedral PtNi nanoparticles(oct-PtNi NPs)with excellent ORR activity in a half-cell have been widely studied,while their performance in membrane electrode assembly(MEA)has much less reported.Herein,we investigated the MEA performance using the carbon supported oct-PtNi NPs(oct-PtNi/C)as the cathode catalyst.Under the mild acid washing condition,the surface Ni atoms of oct-PtNi/C were largely removed,and the performance of the MEA using the acid-leaching oct-PtNi/C(PNC-A)as the cathode catalyst was greatly improved.The maximum power density of the MEA reached 1.0 W·cm-2 with the cath-ode Pt loading of 0.2 mg·cm-2,which is 15%higher than that using Pt/C as the catalyst.After 30k cycles in the accelerated degradation test(ADT),the MEA using PNC-A as the catalyst showed a performance retention of 82%,higher than that of Pt/C(74%).The results reported here verify the possibility of using PNC-A as an advanced cathode catalyst in PEMFCs,thus enhancing the performance of PEMFCs while lowering the amount of expensive Pt.关键词
质子交换膜燃料电池/铂镍八面体/氧还原反应/膜电极组件Key words
Proton exchange membrane fuel cell/Octahedral PtNi/Oxygen reduction reaction/Membrane electrode assembly引用本文复制引用
丰紫薇,陈海忠,段骁,唐玲,赵云昆,黄龙..碳载铂镍八面体纳米粒子作为质子交换膜燃料电池阴极催化剂的性能研究[J].电化学（中英文）,2026,32(1):65-76,12.基金项目
This work was mainly supported by grants from the Natural Science Foundation of China(22362031 and 21805121),and the Science and Technology Project of Yunnan Province(2019FD137).We thank Professor Zipeng Zhao in Beijing Institute of Technology for the guidance during the synthesis of oct-PtNi/C catalysts. （22362031 and 21805121）
