High-Temperature CO2 Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects.,Advanced Materials

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High-Temperature CO2 Electrolysis in Solid Oxide Electrolysis Cells: Developments, Challenges, and Prospects.
Advanced Materials ( IF 27.4 ) Pub Date : 2019-07-07 , DOI: 10.1002/adma.201902033
Yuefeng Song _{1,

2} , Xiaomin Zhang ₁ , Kui Xie ₃ , Guoxiong Wang ₁ , Xinhe Bao ₁

Affiliation

High-temperature CO2 electrolysis in solid-oxide electrolysis cells (SOECs) could greatly assist in the reduction of CO2 emissions by electrochemically converting CO2 to valuable fuels through effective electrothermal activation of the stable CO bond. If powered by renewable energy resources, it could also provide an advanced energy-storage method for their intermittent output. Compared to low-temperature electrochemical CO2 reduction, CO2 electrolysis in SOECs at high temperature exhibits higher current density and energy efficiency and has thus attracted much recent attention. The history of its development and its fundamental mechanisms, cathode materials, oxygen-ion-conducting electrolyte materials, and anode materials are highlighted. Electrode, electrolyte, and electrode-electrolyte interface degradation issues are comprehensively summarized. Fuel-assisted SOECs with low-cost fuels applied to the anode to decrease the overpotential and electricity consumption are introduced. Furthermore, the challenges and prospects for future research into high-temperature CO2 electrolysis in SOECs are included.

中文翻译：

固体氧化物电解池中的高温CO2电解：发展，挑战和前景。

固体氧化物电解槽（SOEC）中的高温CO2电解可通过有效的电热活化稳定的CO键将CO2电化学转化为有价值的燃料，从而大大有助于减少CO2排放。如果使用可再生能源，也可以为间歇性输出提供先进的储能方法。与低温电化学还原CO2相比，SOEC中高温下的CO2电解具有更高的电流密度和能效，因此备受关注。重点介绍了其发展历史及其基本机理，正极材料，传导氧离子的电解质材料和负极材料。电极，电解液全面总结了电极-电解质界面降解问题。引入了将低成本燃料应用于阳极的燃料辅助SOEC，以减少过电位和电力消耗。此外，还包括对未来在SOEC中进行高温CO2电解研究的挑战和前景。

更新日期：2019-12-11

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