Boosting Electrocatalytic Activity of Ru for Acidic Hydrogen Evolution through Hydrogen Spillover Strategy

被引：143

作者：

Li, Jiayuan ^{[1
]}

Tan, Yuan ^{[2
]}

Zhang, Mingkai ^{[3
]}

Gou, Wangyan ^{[1
]}

Zhang, Sai ^{[1
]}

Ma, Yuanyuan ^{[1
]}

Hu, Jun ^{[2
]}

Qu, Yongquan ^{[1
,3
]}

机构：

[1] Northwestern Polytech Univ, Minist Ind & Informat Technol, Sch Chem & Chem Engn, Key Lab Special Funct & Smart Polymer Mat, Xian 710072, Peoples R China

[2] Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China

[3] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Xian 710049, Peoples R China

来源：

ACS ENERGY LETTERS | 2022年 / 7卷 / 04期

基金：

中国博士后科学基金;

关键词：

CATALYST; NI; NANOPARTICLES; EFFICIENT; SYSTEMS; SURFACE;

D O I：

10.1021/acsenergylett.1c02769

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：

Pristine Ru generally shows unsatisfying activity for the electro-catalytic hydrogen evolution reaction (HER). How to activate its HER activitythrough facile methodologies is very challenging. Recently, metal-supportedelectrocatalysts integrating metals with efficient hydrogen adsorption and supportswith facile hydrogen desorption delivered a high HER performance through ametal-to-support hydrogen spillover process, where the small metal-support workfunction difference (Delta Phi) was identified as the criterion for the successful interfacialhydrogen spillover. Herein, we demonstrate that a hydrogen spillover strategy significantly boosts the HER activity of Ru bydepositing a Ru1Fe1alloy on CoP (Ru1Fe1/CoP) with a small Delta Phi of 0.05 eV. Experimentally, Ru1Fe1/CoP (0.7 wt % Ruloading) delivered a high Ru utilization activity of 139.8 A/mgRuand a long-term durability in acid. Mechanism investigationsauthenticated that the small Delta Phi guaranteed the interfacial hydrogen spillover from Ru1Fe1with efficient hydrogen adsorptionto CoP with facile hydrogen desorption and thereafter boosted the HER activity of Ru.

引用

页码：1330 / 1337

页数：8

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