Bipyridine-Assisted Assembly of Au Nanoparticles on Cu Nanowires To Enhance the Electrochemical Reduction of CO2

被引：111

作者：

Fu, Jiaju ^{[1
,2
]}

Zhu, Wenlei ^{[1
]}

Chen, Ying ^{[2
]}

Yin, Zhouyang ^{[1
]}

Li, Yuyang ^{[1
]}

Liu, Juan ^{[2
]}

Zhang, Hongyi ^{[1
]}

Zhu, Jun-Jie ^{[2
]}

Sun, Shouheng ^{[1
]}

机构：

[1] Brown Univ, Dept Chem, Providence, RI 02912 USA

[2] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Analyt Chem Life Sci, Nanjing 210023, Jiangsu, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 40期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

CO2; reduction; electrocatalysis; nanocomposites; ELECTROCATALYTIC REDUCTION; CARBON-MONOXIDE; COPPER; ELECTROREDUCTION; CONVERSION; PRODUCTS; INSIGHTS; FUEL;

D O I：

10.1002/anie.201905318

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a new strategy to prepare a composite catalyst for highly efficient electrochemical CO2 reduction reaction (CO2RR). The composite catalyst is made by anchoring Au nanoparticles on Cu nanowires via 4,4 '-bipyridine (bipy). The Au-bipy-Cu composite catalyzes the CO2RR in 0.1 m KHCO3 with a total Faradaic efficiency (FE) reaching 90.6 % at -0.9 V to provide C-products, among which CH3CHO (25 % FE) dominates the liquid product (HCOO-, CH3CHO, and CH3COO-) distribution (75 %). The enhanced CO2RR catalysis demonstrated by Au-bipy-Cu originates from its synergistic Au (CO2 to CO) and Cu (CO to C-products) catalysis which is further promoted by bipy. The Au-bipy-Cu composite represents a new catalyst system for effective CO2RR conversion to C-products.

引用

页码：14100 / 14103

页数：4

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