Controlled Substrate Transport to Electrocatalyst Active Sites for Enhanced Selectivity in the Carbon Dioxide Reduction Reaction

IF 3.8 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Comments on Inorganic Chemistry Pub Date : 2019-06-24 DOI:10.1080/02603594.2019.1628025

Ying-shu Liu, K. Leung, Samuel E. Michaud, Taylor L. Soucy, Charles C. L. McCrory

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引用次数: 14

Abstract

The selective electrochemical reduction of CO2 to value-added products is a useful strategy for the local storage of intermittent energy sources as chemical fuels and the recycling of industrial CO2 waste into industrial feedstocks. This review highlights some of the recent research focused specifically on modulating substrate delivery and local catalyst environment to enhance reaction and product selectivity in the CO2 reduction reaction by both solid-state materials and discrete molecular systems. We discuss recent studies that focus on (1) using nanostructured and mesoporous solid-state electrocatalysts to modulate local pH and CO2 concentrations near active sites, (2) coating electrocatalysts with porous overlayers to directly control substrate delivery to the electrocatalyst surface, and (3) using polymer encapsulation to modify the coordination environment surrounding molecular electrocatalysts to enhance activity and selectivity for CO2 reduction. We believe that increased research in controlling substrate delivery to enhance reaction and product selectivity for the CO2 reduction reaction is a promising strategy for designing new electrocatalytic systems for the selective and efficient conversion of CO2 to value-added products. Graphical abstract

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控制底物传输到电催化剂活性位点以提高二氧化碳还原反应的选择性

将CO2选择性电化学还原为增值产品是就地储存作为化学燃料的间歇性能源和将工业CO2废物再循环为工业原料的有用策略。本文综述了近年来在固体材料和离散分子体系中，通过调节底物输送和局部催化剂环境来提高CO2还原反应的反应和产物选择性方面的一些研究进展。我们讨论了最近的研究，主要集中在:(1)使用纳米结构和介孔固体电催化剂来调节活性位点附近的局部pH和CO2浓度;(2)在电催化剂表面涂上多孔涂层来直接控制底物到电催化剂表面的输送;(3)使用聚合物包封来修饰分子电催化剂周围的配位环境，以提高活性和减少CO2的选择性。我们认为，增加对控制底物输送的研究，以提高二氧化碳还原反应的反应和产物选择性，是设计新的电催化系统的一个很有前途的策略，可以选择性和有效地将二氧化碳转化为增值产品。图形抽象

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来源期刊

Comments on Inorganic Chemistry 化学-无机化学与核化学

CiteScore

9.00

自引率

1.90%

发文量

审稿时长

>12 weeks

期刊介绍： Comments on Inorganic Chemistry is intended as a vehicle for authoritatively written critical discussions of inorganic chemistry research. We publish focused articles of any length that critique or comment upon new concepts, or which introduce new interpretations or developments of long-standing concepts. “Comments” may contain critical discussions of previously published work, or original research that critiques existing concepts or introduces novel concepts. Through the medium of “comments,” the Editors encourage authors in any area of inorganic chemistry - synthesis, structure, spectroscopy, kinetics and mechanisms, theory - to write about their interests in a manner that is both personal and pedagogical. Comments is an excellent platform for younger inorganic chemists whose research is not yet widely known to describe their work, and add to the spectrum of Comments’ author profiles, which includes many well-established inorganic chemists.