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科学通报  2015 

离子液体调控的CO2电化学催化转化研究进展

DOI: 10.1360/N972015-00339, PP. 2466-2475

Keywords: 绿色溶剂,离子液体,电化学,催化,二氧化碳,转化

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Abstract:

与常规的分子溶剂相比,离子液体具有良好的导电性、强的静电场、独特的微环境等特性,尤其是离子液体内部存在多重弱相互作用,同时对CO2有较高的溶解性和活化作用,使其在CO2的电化学催化还原研究中受到越来越广泛的关注.本文介绍了近年来关于离子液体调控CO2电化学催化转化制备CO、甲烷等化合物的研究进展.离子液体的介入,不仅可以明显降低CO2还原的过电位,还能提高CO2还原时的电流密度,特别是离子液体介质与固体、纳米或分子催化剂之间所产生的协同作用,提高了CO2催化转化的选择性.离子液体中电化学催化转化CO2是实现CO2大规模利用的可行路线.该研究的深入进行,对于加深对CO2的活化和离子液体本身以及离子液体+催化剂体系的认识具有重要科学和实际意义.

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