Electrochemically Fabricated Surface-Mesostructured CuNi Bimetallic Catalysts for Hydrogen Production in Alkaline Media

被引：9

作者：

Bai, Jingyuan ^{[1
]}

Zhang, Jin ^{[2
,3
]}

Eiler, Konrad ^{[4
]}

Yang, Zhou ^{[2
]}

Fan, Longyi ^{[2
]}

Yang, Dalong ^{[2
]}

Zhang, Meilin ^{[1
]}

Hou, Yupu ^{[2
]}

Guan, Renguo ^{[1
,2
]}

Sort, Jordi ^{[4
,5
]}

Pellicer, Eva ^{[4
]}

机构：

[1] Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China

[2] Dalian Jiaotong Univ, Minist Educ, Engn Res Ctr Continuous Extrus, Dalian 116028, Peoples R China

[3] Northwestern Polytech Univ, Ctr Adv Lubricat & Seal Mat, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

[4] Univ Autonoma Barcelona, Fac Ciencies, Dept Fis, E-08193 Bellaterra, Cerdanyola Del, Spain

[5] Inst Catalana Recerca & Estudis Avancats ICREA, Pg Lluis Co 23, E-08010 Barcelona, Spain

来源：

NANOMATERIALS | 2022年 / 12卷 / 01期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

CuNi; micelle-assisted electrodeposition; mesostructured surface; hydrogen evolution reaction; EVOLUTION REACTION; MECHANICAL-PROPERTIES; CORROSION BEHAVIOR; NI; ELECTRODEPOSITION; FILMS; ALLOY; PERFORMANCE; MICROSCOPY; COPPER;

D O I：

10.3390/nano12010118

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ni-based bimetallic films with 20 at.% and 45 at.% Cu and mesostructured surfaces were prepared by electrodeposition from an aqueous solution containing micelles of P123 triblock copolymer serving as a structure-directing agent. The pH value of the electrolytic solution had a key effect on both the resulting Cu/Ni ratio and the surface topology. The catalytic activity of the CuNi films toward hydrogen evolution reaction was investigated by cyclic voltammetry (CV) in 1 M KOH electrolyte at room temperature. The Cu45Ni55 film showed the highest activity (even higher than that of a non-mesostructured pure Ni film), which was attributed to the Ni content at the utmost surface, as demonstrated by CV studies, as well as the presence of a highly corrugated surface.

引用

页数：15

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