Electrochemical CO_(2) reduction with ionic liquids: review and evaluation  

作　　者：Yangshuo Li Fangfang Li Aatto Laaksonen Chuan Wang Paul Cobden Per Boden Yanrong Liu Xiangping Zhang Xiaoyan Ji 

机构地区：[1]Energy Engineering,Division of Energy Science,Lulea University of Technology,Luleå97187,Sweden [2]Department of Materials and Environmental Chemistry,Arrhenius Laboratory,Stockholm University,10691 Stockholm,Sweden [3]Centre of Advanced Research in Bionanoconjugates and Biopolymers,Petru Poni Institute of Macromolecular Chemistry,Aleea Grigore Ghica-Voda,41A,700487 Iasi,Romania [4]State Key Laboratory of Materials-Oriented and Chemical Engineering,Nanjing Tech University,Nanjing,210009,P.R.China [5]University of Cagliari,Department of Chemical and Geological Sciences,Campus Monserrato,SS 554 bivio per Sestu,09042,Monserrato,Italy [6]Metallurgy Department,Swerim AB,97125,Luleå,Sweden [7]SMA Mineral AB,68227,Filipstad,Sweden [8]CAS Key Laboratory of Green Process and Engineering,Beijing Key Laboratory of Ionic Liquids Clean Process,State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China

出　　处：《Industrial Chemistry & Materials》2023年第3期410-430,共21页工业化学与材料（英文）

基　　金：This work was financially supported by the Swedish Energy Agency(51239-1 or P2020-90066).

摘　　要：The increasing CO_(2) emission,as the chief culprit causing numerous environmental problems,could be addressed by the electrochemical CO_(2) reduction(CO_(2)R)to the added-value carbon-based chemicals.Ionic liquids(ILs)as electrolytes and co-catalysts have been widely studied to promote CO_(2)R owing to their unique advantages.Among the potential products of CO_(2)R,those only containing one carbon atom,named C1 products,including CO,CH_(3)OH,CH_(4),and syngas,are easier to achieve than others.In this study,we first summarized the research status on CO_(2)R to these C1 products,and then,the state-of-theart experimental results were used to evaluate the economic potential and environmental impact.Considering the rapid development in CO_(2)R,future scenarios with better CO_(2)R performances were reasonably assumed to predict the future business for each product.Among the studied C1 products,the research focuses on CO,where satisfactory results have been achieved.The evaluation shows that producing CO via CO_(2)R is the only profitable route at present.CH3OH and syngas of H2/CO(1:1)as the targeted products can become profitable in the foreseen future.In addition,the life cycle assessment(LCA)was used to evaluate the environmental impact,showing that CO_(2)R to CH4 is the most environmentally friendly pathway,followed by the syngas of H_(2)/CO(2:1)and CO,and the further improvement of the CO_(2)R performance can make all the studied C1 products more environmentally friendly.Overall,CO is the most promising product from both economic and environmental impact aspects.

关 键 词：Electrochemical-CO_(2)-reduction Ionic-liquids C1-product Economic-evaluation Environmental-impact 

分 类 号：O64[理学—物理化学]