Carbon supported Ir nanoparticles modified and dealloyed with M (M=V, Co, Ni and Ti) as anode catalysts for polymer electrolyte fuel cells
Carbon supported Ir nanoparticles modified and dealloyed with M (M=V, Co, Ni and Ti) as anode catalysts for polymer electrolyte fuel cells
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用 M（M=V、Co、Ni 和 Ti）改性和脱合金的碳负载 Ir 纳米粒子作为聚合物电解质燃料电池的阳极催化剂
DOI：
10.1016/j.ijhydene.2013.01.194
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发表时间：
2013-05
影响因子：
7.2
通讯作者：
Bing Li, Drew C Higgins, Daijun Yang, Hong Lv, Jianxin Ma
中科院分区：
文献类型：
--
作者：
Bing Li, Drew C Higgins, Daijun Yang, Hong Lv, Jianxin Ma
Very active carbon-supported Ir modified with transition metal M catalysts (M = V, Co, Ni and Ti) were synthesized by an ethylene glycol (EG) reduction method as novel, suitable anode electrode materials for polymer electrolyte membrane fuel cells (PEMFCs) applications. IrM nanoparticles showed a narrow particle size distribution centered around 2–3 nm, and were uniformly dispersed on Vulcan XC-72 supports. Investigation of the catalytic activity by means of linear sweep voltammetry (LSV) employing a rotating disk electrode (RDE) setup has revealed that the activities of these catalysts follows the order of IrCo/C > IrV/C > IrNi/C > IrTi/C > commercial Pt/C > Ir/C toward the hydrogen oxidation reaction (HOR). Membrane electrode assemblies (MEA) prepared with the IrM/C anode catalysts demonstrated the beneficial impact of transition metal addition during catalyst synthesis, with IrCo/C and IrV/C providing the highest MEA power densities. EDX results indicated that these two catalysts contained negligible Co and V contents, respectively, indicating a beneficial dealloying effect resulting from HCl addition during catalyst synthesis. Herein, IrM/C materials are presented as promising replacements to conventional platinum based materials for utilization as anode electrocatalysts for PEMFC applications.
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影响因子：
6.6
作者：
Bing Li;Jinli Qiao;Daijun Yang;Junsheng Zheng;J. Ma;Jiujun Zhang;Haijiang Wang
通讯作者：
Bing Li;Jinli Qiao;Daijun Yang;Junsheng Zheng;J. Ma;Jiujun Zhang;Haijiang Wang
影响因子：
2.9
作者：
A. Fischer;J. Jindra;H. Wendt
通讯作者：
A. Fischer;J. Jindra;H. Wendt
影响因子：
9.2
作者：
Kun-Jae Lee;Lei Zhang;Jiujun Zhang
通讯作者：
Kun-Jae Lee;Lei Zhang;Jiujun Zhang
影响因子：
15
作者：
Fernández, JL;Walsh, DA;Bard, AJ
通讯作者：
Bard, AJ
影响因子：
9.2
作者：
Cai, Y. H.;Hu, J.;Zhang, H. M.
通讯作者：
Zhang, H. M.