Materials of solid oxide electrolysis cells for H_(2)O and CO_(2) electrolysis:A review  

作　　者：Peng Qiu Cheng Li Bo Liu Dong Yan Jian Li Lichao Jia 

机构地区：[1]Center for Fuel Cell Innovation,School of Materials Science and Engineering,State Key Laboratory of Materials Processing and Die&Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China [2]School of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,China

出　　处：《Journal of Advanced Ceramics》2023年第8期1463-1510,共48页先进陶瓷（英文）

基　　金：support by the National Key R&D Program of China(2018YFE0124700);the National Natural Science Foundation of China(52102279,52072134,and 51972128);Natural Science Foundation of Shandong Province(ZR2021QE283);Department of Science and Technology of Hubei Province(2021CBA149 and 2021CFA072).

摘　　要：Reliable and economical energy storage technologies are urgently required to ensure sustainable energy supply.Hydrogen(H_(2))is an energy carrier that can be produced environmentfriendly by renewable power to split water(H_(2)O)via electrochemical cells.By this way,electric energy is stored as chemical energy of H_(2),and the storage can be large-scale and economical.Among the electrochemical technologies for H_(2)O electrolysis,solid oxide electrolysis cells(SOECs)operated at temperatures above 500℃have the benefits of high energy conversion efficiency and economic feasibility.In addition to the H_(2)O electrolysis,SOECs can also be employed for CO_(2) electrolysis and H2O–CO_(2) co-electrolysis to produce value-added chemicals of great economic and environmental significance.However,the SOEC technology is not yet fully ready for commercial deployment because of material limitations of the key components,such as electrolytes,air electrodes,and fuel electrodes.As is well known,the reactions in SOEC are,in principle,inverse to the reactions in solid oxide fuel cells(SOFCs).Component materials of SOECs are currently adopted from SOFC materials.However,their performance stability issues are evident,and need to be overcome by materials development in line with the unique requirements of the SOEC materials.Key topics discussed in this review include SOEC critical materials and their optimization,material degradation and its safeguards,future research directions,and commercialization challenges,from both traditional oxygen ion(O_(2)−)-conducting SOEC(O-SOEC)and proton(H^(+))-conducting SOEC(H-SOEC)perspectives.It is worth to believe that H_(2)O or/and CO_(2) electrolysis by SOECs provides a viable solution for future energy storage and conversion.

关 键 词：solid oxide electrolysis cells(SOECs) water(H_(2)O)electrolysis CO_(2)electrolysis electrolytes ELECTRODE 

分 类 号：TM91[电气工程—电力电子与电力传动] TB34[一般工业技术—材料科学与工程]