Programming ORR Activity of Ni/NiOx@Pd Electrocatalysts via Controlling Depth of Surface-Decorated Atomic Pt Clusters

被引：29
作者：
Bhalothia, Dinesh [1 ]
Chou, Jyh-Pin [4 ]
Yan, Che [2 ]
Hu, Alice [4 ]
Yang, Ya-Tang [1 ]
Chen, Tsan-Yao [2 ,3 ]
机构：
[1] Natl Tsing Hua Univ, Inst Elect Engn, Hsinchu 30013, Taiwan
[2] Natl Tsing Hua Univ, Dept Engn & Syst Sci, Hsinchu 30013, Taiwan
[3] Natl Tsing Hua Univ, Inst Nucl Engn & Sci, Hsinchu 30013, Taiwan
[4] City Univ Hong Kong, Dept Mech & Biomed Engn, Hong Kong 999077, Hong Kong, Peoples R China
来源：
ACS OMEGA | 2018年 / 3卷 / 08期
关键词：
OXYGEN REDUCTION REACTION; CORE-SHELL NANOPARTICLES; MASS ACTIVITY; FUEL-CELLS; NI-PD; CATALYSTS; PERFORMANCE; ELECTROOXIDATION; NANOWIRES; STABILITY;
D O I：
10.1021/acsomega.8b01234
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Carbon nanotube supported ternary metallic nanocatalysts (NCs) comprising Ni-core -Pd-shell structure and Pt atomic scale clusters in shell (namely, Ni@Pd/Pt) are synthesized by using wet chemical reduction method with reaction time control. Effects of Pt4+ adsorption time and Pt/Pd composition ratios on atomic structure with respect to electrochemical performances of experimental NCs are systematically investigated. By cross-referencing results of high-resolution transmission electron microscopy, X-ray diffraction, X-ray absorption, density functional theoretical calculations, and electrochemical analysis, we demonstrate that oxygen reduction reaction (ORR) activity is dominated
引用
收藏
页码：8733 / 8744
页数：12
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