Electrochemical performance characteristics and optimum design strategies of a solid oxide electrolysis cell system for carbon dioxide reduction

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	Electrochemical performance characteristics and optimum design strategies of a solid oxide electrolysis cell system for carbon dioxide reduction
	Zhang, Houcheng ; Wang, Junyi ; Su, Shanhe ; Chen, Jincan ; Chen JC(陈金灿)
刊名	http://dx.doi.org/10.1016/j.ijhydene.2013.05.155
	2013
关键词	HYDROGEN-PRODUCTION FUEL-CELL STEAM ELECTROLYZER CO-ELECTROLYSIS MODEL TEMPERATURE TRANSPORT CATHODE OXYGEN MEMBRANE
英文摘要	Ningbo University; Foundation of Zhejiang Educational Commission [Y201326937]; National Natural Science Foundation, People's Republic of China [51076134]; An analytical model is developed to study the electrochemical characteristics of a solid oxide electrolysis cell (SOEC) for carbon dioxide reduction, in which the activation overpotential, concentration overpotential, and ohmic overpotential are considered as the main sources of voltage losses. The Bulter-Volmer equation, DGM model, and Ohm's law are employed to characterize the three overpotentials, respectively. The theoretical model is validated by comparing the simulation results with the experimental data from the literature. The anode-supported configuration SOEC is found to be the most favorable design. The effects of the cathode inlet gas molar fraction on the cathode overpotential and the cell potential are discussed in detail. It is found that there exists an optimum molar fraction for the cathode inlet gas at which the cathode concentration overpotential attains its minimum for given operation conditions. Moreover, the effects of some importantly operating parameters such as the current density, temperature and pressure on the cell potential are discussed. Thermal-electrochemical analysis shows that the Joule heat generated from the irreversibilities in the SOEC may be larger than, equal to, or smaller than the thermal energy needed for the carbon dioxide reduction reaction, and consequently, a system layout with five different design strategies to implement the carbon dioxide electrolysis is put forward. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/91859]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Zhang, Houcheng,Wang, Junyi,Su, Shanhe,et al. Electrochemical performance characteristics and optimum design strategies of a solid oxide electrolysis cell system for carbon dioxide reduction[J]. http://dx.doi.org/10.1016/j.ijhydene.2013.05.155,2013.
APA	Zhang, Houcheng,Wang, Junyi,Su, Shanhe,Chen, Jincan,&陈金灿.(2013).Electrochemical performance characteristics and optimum design strategies of a solid oxide electrolysis cell system for carbon dioxide reduction.http://dx.doi.org/10.1016/j.ijhydene.2013.05.155.
MLA	Zhang, Houcheng,et al."Electrochemical performance characteristics and optimum design strategies of a solid oxide electrolysis cell system for carbon dioxide reduction".http://dx.doi.org/10.1016/j.ijhydene.2013.05.155 (2013).