Room-temperature liquid metal synthesis of nanoporous copper-indium heterostructures for efficient carbon dioxide reduction to syngas

Ma, Xingcheng1; Wang, Feng6; Jiao, Dongxu2,3; Zhang, Dantong1; Zhao, Xiao1; Singh, David J.4,5; Zhao, Jingxiang2,3; Cui, Xiaoqiang1; Zheng, Weitao1

2022-06-01

10.1007/s40843-022-2058-5

Science China-Materials   Impact Factor & Quartile

2095-8226

2199-4501

Nanoporous metals show promising performances in electrochemical catalysis. In this paper, we report a self-supporting bimetallic porous heterogeneous indium/copper structure synthesized with a eutectic gallium-indium (EGaIn) material on a copper substrate. This nanoporous copper-indium heterostructure catalyst exhibits excellent performance in the reduction of carbon dioxide to syngas. The ratio of H-2/CO is tunable from 0.47 to 2.0 by changing working potentials. The catalyst is highly stable, showing 96% maintenance of the current density after a 70-h continuous test. Density functional theory calculations reveal that the indium/copper interface induces charge redistribution within the copper surface, leading to the formation of two distinct active sites, namely, Cu-delta and Cu-0, and enabling a high-performance generation of CO and H-2. This work provides a new strategy for obtaining self-supporting nanoporous metal electrode catalysts.

syngas liquid metal EGaIn heterostructure nanoporous metal

SCI ; EI

English

Others

National Natural Science Foundation of China[51872116,12034002] ; Project for Self-Innovation Capability Construction of Jilin Province Development and Reform Commission[2021C026] ; Program for JLU Science and Technology Innovative Research Team[JLUSTIRT-2017TD-09] ; Science and Technology Development Program of Jilin Province[20190201233JC]

Materials Science

Materials Science, Multidisciplinary

WOS:000812025600002

SCIENCE PRESS

20222512250026

Catalysts ; Copper ; Density functional theory ; Electrodes ; Synthesis gas

Copper:544.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Probability Theory:922.1 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4

Web of Science

1.Jilin Univ, State Key Lab Automot Simulat & Control, Sch Mat Sci & Engn, Key Lab Automobile Mat MOE, Changchun 130012, Peoples R China
2.Harbin Normal Univ, Key Lab Photon & Elect Bandgap Mat, Minist Educ, Harbin 150025, Peoples R China
3.Harbin Normal Univ, Coll Chem & Chem Engn, Harbin 150025, Peoples R China
4.Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA
5.Univ Missouri, Dept Chem, Columbia, MO 65211 USA
6.Southern Univ Sci & Technol, Guangdong Prov Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Peoples R China

Ma, Xingcheng,Wang, Feng,Jiao, Dongxu,et al. Room-temperature liquid metal synthesis of nanoporous copper-indium heterostructures for efficient carbon dioxide reduction to syngas[J]. Science China-Materials,2022.

Ma, Xingcheng.,Wang, Feng.,Jiao, Dongxu.,Zhang, Dantong.,Zhao, Xiao.,...&Zheng, Weitao.(2022).Room-temperature liquid metal synthesis of nanoporous copper-indium heterostructures for efficient carbon dioxide reduction to syngas.Science China-Materials.

Ma, Xingcheng,et al."Room-temperature liquid metal synthesis of nanoporous copper-indium heterostructures for efficient carbon dioxide reduction to syngas".Science China-Materials (2022).