气候变化领域集成服务门户(CCPortal): Carbon dioxide splitting using an electro-thermochemical hybrid looping strategy

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DOI	10.1039/c8ee00532j
	Carbon dioxide splitting using an electro-thermochemical hybrid looping strategy
	Luc W.; Jouny M.; Rosen J.; Jiao F.
发表日期	2018
ISSN	17545692
起始页码	2928
结束页码	2934
卷号	11 期号:10
英文摘要	Reclaiming oxygen (O2) efficiently from carbon dioxide (CO2), a major product of human metabolism, is a key technology to minimize the oxygen supply required for challenging missions such as manned deep space exploration. Ideally, a method that can convert CO2 into elemental carbon (C) and O2 under mild conditions is highly desirable; however, due to the highly unfavorable thermodynamics, direct CO2 splitting requires extreme conditions. Herein, we present an electro-thermochemical hybrid looping (ETHL) strategy to split CO2 into C and O2 under mild conditions with a 100% theoretical oxygen recovery efficiency, which cannot be accomplished using any existing electrochemical or thermochemical process. The ETHL process combines an electrochemical step that reduces CO2 into carbon monoxide (CO) with a thermochemical step that further converts CO into C and CO2. By recycling the produced CO2 from the thermochemical step back to the first electrochemical step, this closes the loop with C and O2 as the only products. The results showed 96% selectivity for the CO2 electrolysis step and nearly 100% selectivity for the CO thermochemical step, demonstrating the feasibility of the ETHL strategy for complete oxygen recovery from CO2. © 2018 The Royal Society of Chemistry.
英文关键词	Carbon monoxide; Interplanetary flight; Oxygen supply; Space research; Thermodynamics; Deep-space exploration; Elemental carbon; Extreme conditions; Human metabolisms; Key technologies; Oxygen recovery; Thermo chemical process; Carbon dioxide; carbon dioxide; carbon monoxide; efficiency measurement; electrochemical method; recovery; thermochemistry
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190094
作者单位	Center for Catalytic Science and Technology, Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, United States
推荐引用方式 GB/T 7714	Luc W.,Jouny M.,Rosen J.,et al. Carbon dioxide splitting using an electro-thermochemical hybrid looping strategy[J],2018,11(10).
APA	Luc W.,Jouny M.,Rosen J.,&Jiao F..(2018).Carbon dioxide splitting using an electro-thermochemical hybrid looping strategy.Energy & Environmental Science,11(10).
MLA	Luc W.,et al."Carbon dioxide splitting using an electro-thermochemical hybrid looping strategy".Energy & Environmental Science 11.10(2018).