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

页码：8733 / 8744

页数：12

共 28 条

[21] New palladium alloys catalyst for the oxygen reduction reaction in an acid medium [J].