Nanoporous Copper Films by Additive-Controlled Electrodeposition: CO2 Reduction Catalysis

被引：248

作者：

Hoang, Thao T. H. ^{[1
]}

Ma, Sichao ^{[1
]}

Gold, Jake I. ^{[2
]}

Kenis, Paul J. A. ^{[2
,3
]}

Gewirth, Andrew A. ^{[1
,3
]}

机构：

[1] Univ Illinois, Dept Chem, Urbana, IL 61801 USA

[2] Univ Illinois, Dept Chem & Biomol Engn, Urbana, IL 61801 USA

[3] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka 8190395, Japan

来源：

ACS CATALYSIS | 2017年 / 7卷 / 05期

关键词：

CO2; reduction; electrodeposition; copper; 3,5-diamino-1,2,4-triazole; ethylene; ELECTROCHEMICAL REDUCTION; CARBON-DIOXIDE; METALLIC FOAMS; UNDERPOTENTIAL DEPOSITION; CU; CONVERSION; NITRATE; SELECTIVITY; CHALLENGES; MECHANISM;

D O I：

10.1021/acscatal.6b03613

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：

Electrodeposition from plating baths containing 3,S-diamino-1,2,4-triazole (DAT) as an inhibitor gives Cu films exhibiting high surface area and high CO2 reduction activities. By changes in the pH and deposition current density, the morphologies of the Cu films are varied to exhibit wire, dot, and amorphous structures. Among these Cu films, the CuDAT-wire samples exhibit the best CO2 reduction activities activity with a Faradaic efficiency (FE) for C2H4 product formation reaching 40% at -0.5 V vs RHE, a FE for C2H5OH formation reaching 20% at -0.5 V vs RHE, and a mass activity for CO2 reduction at -0.7 V vs RHE of similar to 700 A/g.

引用

页码：3313 / 3321

页数：9

共 57 条

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