A hollow PdCuMoNiCo high-entropy alloy as an efficient bi-functional electrocatalyst for oxygen reduction and formic acid oxidation

被引：69

作者：

Zuo, Xifeng ^{[1
]}

Yan, Riqing ^{[1
]}

Zhao, Linjie ^{[1
]}

Long, Yongde ^{[1
]}

Shi, Lei ^{[1
]}

Cheng, Qingqing ^{[2
]}

Liu, Dong ^{[1
]}

Hu, Chuangang ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Coll Chem Engn, Ctr Soft Matter Sci & Engn, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

[2] Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2022年 / 10卷 / 28期

基金：

中国国家自然科学基金;

关键词：

HEAT-TREATMENT; ORR ACTIVITY; ETHANOL; NANOCRYSTALS; NANOPARTICLES; PERFORMANCE; CATALYSTS; GRAPHENE; CO;

D O I：

10.1039/d2ta02597c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Recently, as electrocatalysts, high-entropy alloys (HEAs) have attracted extensive research interest. In this study, a PdCuMoNiCo HEA with a nano-hollow spherical structure on RGO(3)-CNTs (PdCuMoNiCo NHSs/RGO(3)-CNT) was synthesized via a facile one-pot solvothermal method as a superior bi-functional electrocatalyst for formic acid oxidation (FAO) and oxygen reduction reaction (ORR). The advantage of the developed catalyst, i.e., PdCuMoNiCo NHSs on carbon hybrid, was demonstrated by its comparable ORR activity, but much better long-term durability than that of the commercial 20% Pt/C and its highest FAO performance among the reported Pd-based catalysts. It was found that its catalytic activity and stability were mainly derived from the synergistic effect of its hollow structure and HEA effect, presenting a brilliant perspective for the fabrication of HEAs as efficient bi-functional electrocatalysts with high activity and good stability.

引用

页码：14857 / 14865

页数：9

共 51 条

[1] The methanol oxidation reaction on platinum alloys with the first row transition metals - The case of Pt-Co and -Ni alloy electrocatalysts for DMFCs: A short review [J].