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离子液体在 CO 电化学还原为高附加值化学品和燃料中的作用阐明。

Elucidation of the Roles of Ionic Liquid in CO Electrochemical Reduction to Value-Added Chemicals and Fuels.

机构信息

Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia.

Centre for Research in Ionic Liquid, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia.

出版信息

Molecules. 2021 Nov 18;26(22):6962. doi: 10.3390/molecules26226962.

DOI:10.3390/molecules26226962
PMID:34834053
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8624163/
Abstract

The electrochemical reduction of carbon dioxide (COER) is amongst one the most promising technologies to reduce greenhouse gas emissions since carbon dioxide (CO) can be converted to value-added products. Moreover, the possibility of using a renewable source of energy makes this process environmentally compelling. COER in ionic liquids (ILs) has recently attracted attention due to its unique properties in reducing overpotential and raising faradaic efficiency. The current literature on COER mainly reports on the effect of structures, physical and chemical interactions, acidity, and the electrode-electrolyte interface region on the reaction mechanism. However, in this work, new insights are presented for the COER reaction mechanism that are based on the molecular interactions of the ILs and their physicochemical properties. This new insight will open possibilities for the utilization of new types of ionic liquids. Additionally, the roles of anions, cations, and the electrodes in the COER reactions are also reviewed.

摘要

二氧化碳电化学还原（COER）是减少温室气体排放最有前途的技术之一，因为二氧化碳（CO）可以转化为有附加值的产品。此外，使用可再生能源的可能性使得这一过程在环境方面具有吸引力。由于在降低过电势和提高法拉第效率方面具有独特的性质，离子液体（ILs）中的 COER 最近引起了人们的关注。目前关于 COER 的文献主要报道了结构、物理和化学相互作用、酸度以及电极-电解质界面区域对反应机制的影响。然而，在这项工作中，根据 ILs 的分子相互作用及其物理化学性质，提出了 COER 反应机制的新见解。这一新的见解将为利用新型离子液体开辟可能性。此外，还综述了阴离子、阳离子和电极在 COER 反应中的作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cb99/8624163/75a114c0ffaf/molecules-26-06962-g014.jpg
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