首页|Thermochemical splitting of CO2 on perovskites for CO production:A review

Thermochemical splitting of CO2 on perovskites for CO production:A review

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Energy supply dominated by fossil energy has been and remains the main cause of carbon dioxide emis-sions,the major greenhouse gas leading to the current grave climate change challenges.Many technical pathways have been proposed to address the challenges.Carbon capture and utilization(CCU)represents one of the approaches and thermochemical CO2 splitting driven by thermal energy is a subset of the CCU,which converts the captured CO2 into CO and makes it possible to achieve closed-loop carbon recircula-tion.Redox-active catalysts are among the most critical components of the thermochemical splitting cycles and perovskites are regarded as the most promising catalysts.Here we review the latest advance-ments in thermochemical cycles based on perovskites,covering thermodynamic principles,material modifications,reaction kinetics,oxygen pressure control,circular strategies,and demonstrations to pro-vide a comprehensive overview of the topical area.Thermochemical cycles based on such materials require the consideration of trade-off between cost and efficiency,which is related to actual material used,operation mode,oxygen removal,and heat recovery.Lots of efforts have been made towards improving reaction rates,conversion efficiency and cycling stability,materials related research has been lacking-a key aspect affecting the performance across all above aspects.Double perovskites and com-posite perovskites arise recently as a potentially promising addition to material candidates.For such materials,more effective oxygen removal would be needed to enhance the overall efficiency,for which thermochemical or electrochemical oxygen pumps could contribute to efficient oxygen removal as well as serve as means for inert gas regeneration.The integration of thermochemical CO2 splitting process with downstream fuel production and other processes could reduce costs and increase efficiency of the technology.This represents one of the directions for the future research.

PerovskiteThermochemical cyclesCO2 splittingFuel productionNon-stoichiometric

Biduan Chen、Harriet Kildahl、Hui Yang、Yulong Ding、Lige Tong、Li Wang

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School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China

School of Chemical Engineering,University of Birmingham,Birmingham B15 2TT,United Kingdom

Beijing Engineering Research Centre of Energy Saving and Environmental Protection,Beijing 100083,China

UK Engineering and Physical Sciences Research CouncilUK Engineering and Physical Sciences Research CouncilUK Engineering and Physical Sciences Research Council

EP/T022981/1EP/S032622/1EP/V027050/1

2024

10.1016/j.jechem.2023.11.041

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.90(3)
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