中文版 | English
Title

Enhanced Solar-to-Fuel Efficiency of Ceria-Based Thermochemical Cycles via Integrated Electrochemical Oxygen Pumping

Author
Corresponding AuthorLin, Meng
Joint first authorBai, Wandong; Huang, Haodong
Publication Years
2022-08-12
DOI
Source Title
ISSN
2380-8195
Volume7Issue:8Pages:2711-2716
Abstract

The solar thermochemical cycle based on ceria is a promising route for renewable fuel production. The solar-to-fuel efficiency of a thermochemical reactor is highly dependent on the oxygen removal during the reduction step. Conventional nitrogen sweeping (NS) requires high heating load and additional gas separation work, which limit the reactor efficiency. We propose the integration of a high-temperature electrochemical oxygen pump (EOP) for in situ oxygen removal to minimize the heating load and to allow for effective oxygen pumping. A transient model was developed to quantify the reactor performance using EOP or NS schemes. The model predicted that the ceria nonstoichiometric coefficient at the end of the reduction was enhanced by 56.8% when using the EOP scheme compared to the NS scheme. Correspondingly, the solar-to-fuel efficiency enhancement factor was 1.64 at reference conditions. In addition, the EOP scheme showed more uniform temperature and species concentration distributions, leading to a more favorable thermo-mechanical stability.

URL[Source Record]
Indexed By
SCI ; EI
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
National Natural Science Foundation of China[52006097]
WOS Research Area
Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
WOS Subject
Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Accession No
WOS:000841435600001
Publisher
EI Accession Number
20223512674354
EI Keywords
Efficiency ; Fuels ; Mechanical stability ; Oxygen ; Pumps ; Reduction
ESI Classification Code
Pumps:618.2 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Production Engineering:913.1
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/382556
DepartmentDepartment of Mechanical and Energy Engineering
Affiliation
1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, SUSTech Energy Inst Carbon Neutral, Shenzhen 518055, Peoples R China
3.Ecole Polytech Fed Lausanne, Lab Renewable Energy Sci & Engn, CH-1015 Lausanne, Switzerland
First Author AffilicationDepartment of Mechanical and Energy Engineering;  Southern University of Science and Technology
Corresponding Author AffilicationDepartment of Mechanical and Energy Engineering;  Southern University of Science and Technology
First Author's First AffilicationDepartment of Mechanical and Energy Engineering
Recommended Citation
GB/T 7714
Bai, Wandong,Huang, Haodong,Suter, Clemens,et al. Enhanced Solar-to-Fuel Efficiency of Ceria-Based Thermochemical Cycles via Integrated Electrochemical Oxygen Pumping[J]. ACS Energy Letters,2022,7(8):2711-2716.
APA
Bai, Wandong,Huang, Haodong,Suter, Clemens,Haussener, Sophia,&Lin, Meng.(2022).Enhanced Solar-to-Fuel Efficiency of Ceria-Based Thermochemical Cycles via Integrated Electrochemical Oxygen Pumping.ACS Energy Letters,7(8),2711-2716.
MLA
Bai, Wandong,et al."Enhanced Solar-to-Fuel Efficiency of Ceria-Based Thermochemical Cycles via Integrated Electrochemical Oxygen Pumping".ACS Energy Letters 7.8(2022):2711-2716.
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