Electroreduction of CO2 in Ionic Liquid-Based Electrolytes

Dexin Yang; Qinggong Zhu; Buxing Han

doi:10.1016/j.xinn.2020.100016

Electroreduction of CO₂ in Ionic Liquid-Based Electrolytes

Innovation (Camb). 2020 Apr 26;1(1):100016. doi: 10.1016/j.xinn.2020.100016. eCollection 2020 May 21.

Authors

Dexin Yang^{1

2}, Qinggong Zhu^{2

3}, Buxing Han^{2

3}

Affiliations

¹ College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
² Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
³ University of Chinese Academy of Sciences, Beijing 100049, China.

Abstract

Electroreduction of carbon dioxide (CO₂) to value-added chemicals and fuels is a promising approach for sustainable energy conversion and storage. Many electrocatalysts have been designed for this purpose and studied extensively. The role of the electrolyte is particularly interesting and is pivotal for designing electrochemical devices by taking advantage of the synergy between electrolyte and catalyst. Recently, ionic liquids as electrolytes have received much attention due to their high CO₂ adsorption capacity, high selectivity, and low energy consumption. In this review, we present a comprehensive overview of the recent progress in CO₂ electroreduction in ionic liquid-based electrolytes, especially in the performance of different catalysts, the electrolyte effect, as well as mechanism studies to understand the reaction pathway. Perspectives on this interesting area are also discussed for the construction of novel electrochemical systems.

Publication types

Review