Core–shell nanoporous AuCu3@Au monolithic electrode for efficient electrochemical CO2 reduction

2020 ◽  
Vol 8 (6) ◽  
pp. 3344-3350 ◽  
Author(s):  
Xiaoming Ma ◽  
Yongli Shen ◽  
Shuang Yao ◽  
Cuihua An ◽  
Weiqing Zhang ◽  
...  

Monolithic bulk nanoporous core–shell AuCu3@Au has been synthesized through a facile oxidative etching of the Au20Cu80 alloy, which exhibits high efficiency for the electrocatalytic reduction of CO2 in a broad potential window.

ACS Nano ◽  
2020 ◽  
Author(s):  
Pengtang Wang ◽  
Hao Yang ◽  
Yong Xu ◽  
Xiaoqing Huang ◽  
Juan Wang ◽  
...  

Author(s):  
Yinqiong Wu ◽  
Jiachang Zeng ◽  
Yang Yang ◽  
Zhaojie Li ◽  
Wenbiao Zhang ◽  
...  

Noble-metal core-shell nanostructures are promising electrocatalysts for CO2 reduction thanks to their interfacial configurations beneficial for electrocatalytic kinetics, but are severely limited to few couples that require tiny lattice mismatches...


2017 ◽  
Vol 5 (41) ◽  
pp. 21955-21964 ◽  
Author(s):  
Chengzhen Chen ◽  
Bo Zhang ◽  
Juhua Zhong ◽  
Zhenmin Cheng

Electrocatalytic reduction of CO2 to CO is usually subject to the competitive reduction of H+ to hydrogen.


Author(s):  
Ran Du ◽  
Wei Jin ◽  
Hengbo Wu ◽  
René Hübner ◽  
Lin Zhou ◽  
...  

Noble metal aerogels (NMAs), one of the youngest members in the aerogel family, have drawn increasing attention in the last decade. Featuring the high catalytic activity of noble metals and...


Author(s):  
De-Huang Zhuo ◽  
Qing-Song Chen ◽  
Xiu-Hui Zhao ◽  
Yin-Long Jiang ◽  
Jian Lu ◽  
...  

Ce-Bi@CeBiOx/C with core-shell structure has been synthesized by pyrolysis of cerium doped bismuth-based metal-organic frameworks. This novel catalyst exhibits excellent performance for electrochemical CO2 reduction to formate with a maximum...


2018 ◽  
Vol 10 (43) ◽  
pp. 36996-37004 ◽  
Author(s):  
Huan Xie ◽  
Shaoqing Chen ◽  
Feng Ma ◽  
Jiashun Liang ◽  
Zhengpei Miao ◽  
...  

Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 535
Author(s):  
Shuaikang Zhu ◽  
Xiaona Ren ◽  
Xiaoxue Li ◽  
Xiaopo Niu ◽  
Miao Wang ◽  
...  

The copper-based catalyst is considered to be the only catalyst for electrochemical carbon dioxide reduction to produce a variety of hydrocarbons, but its low selectivity and low current density to C2 products restrict its development. Herein, a core-shell xZnO@yCu2O catalysts for electrochemical CO2 reduction was fabricated via a two-step route. The high selectivity of C2 products of 49.8% on ZnO@4Cu2O (ethylene 33.5%, ethanol 16.3%) with an excellent total current density of 140.1 mA cm−2 was achieved over this core-shell structure catalyst in a flow cell, in which the C2 selectivity was twice that of Cu2O. The high electrochemical activity for ECR to C2 products was attributed to the synergetic effects of the ZnO core and Cu2O shell, which not only enhanced the selectivity of the coordinating electron, improved the HER overpotential, and fastened the electron transfer, but also promoted the multielectron involved kinetics for ethylene and ethanol production. This work provides some new insights into the design of highly efficient Cu-based electrocatalysts for enhancing the selectivity of electrochemical CO2 reduction to produce high-value C2 products.


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