Cu2Sb decorated Cu nanowire arrays for selective electrocatalytic CO2 to CO conversion

被引：92

作者：

Mou, Shiyong ^{[1
]}

Li, Yonghao ^{[2
]}

Yue, Luchao ^{[3
]}

Liang, Jie ^{[3
]}

Luo, Yonglan ^{[2
]}

Liu, Qian ^{[3
]}

Li, Tingshuai ^{[3
]}

Lu, Siyu ^{[4
,5
]}

Asiri, Abdullah M. ^{[6
,7
]}

Xiong, Xiaoli ^{[1
]}

Ma, Dongwei ^{[8
,9
]}

Sun, Xuping ^{[3
]}

机构：

[1] Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610068, Peoples R China

[2] China West Normal Univ, Sch Chem & Chem Engn, Chem Synth & Pollut Control Key Lab Sichuan Prov, Nanchong 637002, Peoples R China

[3] Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Peoples R China

[4] Zhengzhou Univ, Green Catalysis Ctr, Zhengzhou 450001, Peoples R China

[5] Zhengzhou Univ, Coll Chem, Zhengzhou 450001, Peoples R China

[6] King Abdulaziz Univ, Fac Sci, Chem Dept, POB 80203, Jeddah 21589, Saudi Arabia

[7] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, POB 80203, Jeddah 21589, Saudi Arabia

[8] Henan Univ, Minist Educ, Key Lab Special Funct Mat, Kaifeng 475004, Peoples R China

[9] Henan Univ, Sch Mat Sci & Engn, Kaifeng 475004, Peoples R China

来源：

NANO RESEARCH | 2021年 / 14卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Cu2Sb; nanowire arrays; electrochemical CO2 reduction; CO2 to CO conversion; CARBON-DIOXIDE REDUCTION; ELECTROCHEMICAL REDUCTION; EFFICIENT ELECTROREDUCTION; AQUEOUS CO2; CATALYSTS; SITES; ELECTRODES;

D O I：

10.1007/s12274-021-3295-1

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：

The advancement of cost-effective and selective electrocatalyst towards CO2 to CO conversion is crucial for renewable energy conversion and storage, thus to achieve carbon-neutral cycle in a sustainable manner. In this communication, we report that Cu2Sb decorated Cu nanowire arrays on Cu foil act as a highly active and selective electrocatalyst for CO2 to CO conversion. In CO2-saturated 0.1 M KHCO3, it achieves a high Faraday efficiency (FE) of 86.5% for CO, at -0.90 V vs. reversible hydrogen electrode (RHE). The H-2/CO ratio is tunable from 0.08:1 to 5.9:1 by adjusting the potential. It is worth noting that HCOO- product was totally suppressed on such catalyst, compared with Sb counterpart. The improving selectivity for CO could be attributed to the bimetallic effect and nanowire arrays structure.

引用

页码：2831 / 2836

页数：6

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