Densification of ceria-based barrier layer for solid oxide cells at lower sintering temperatures:A review  

作　　者：Shiyi Wu Wenyi Yan Na Ni Lei Zhu Zhen Huang 

机构地区：[1]Key Laboratory for Power Machinery and Engineering of Ministry of Education,Shanghai Jiao Tong University,Shanghai 200240,China [2]School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China

出　　处：《Journal of Advanced Ceramics》2025年第1期23-48,共26页先进陶瓷(英文)

基　　金：supported by the Shanghai Municipal Science and Technology Major Project,the Shanghai Pilot Program for Basic Research(No.21TQ1400207);the ShanghaiScienceandTechnology InnovationProgram(No.21DZ1206400);Na Ni acknowledges the funding received from the National Natural Science Foundation of China(No.52072238).

摘　　要：Solid oxide cells(SOCs),including solid oxide fuel cells(SOFCs)and solid oxide electrolysis cells(SOECs),hold great potential for commercial viability because of their high heat utilization,reduced carbon emissions,high efficiency,and fuel flexibility.A key component in enhancing cell performance and extending lifetime is the thin and dense ceria-based barrier layer at the electrolyte and air electrode interface to avoid cell degradation during manufacturing.The barrier layer needs to be densified at low temperatures(ideally less than 1000℃),which remains a significant challenge.This review focuses on a typical low-cost ceramic powder-based route for the preparation of a barrier layer and explores various approaches to achieve low-temperature densification.It covers techniques such as synthesizing finer powders,optimizing deposition methods for the green-body layer,using sintering aids,and employing post-sintering processes to increase density.Recent advancements in these areas are highlighted to provide insights into future development directions.Finally,the review discusses new opportunities and emerging techniques that could further improve the barrier layer performance.

关 键 词：solidoxidecells(SOCs) ceria-basedmaterial barrierlayer low-temperaturesintering DENSIFICATION 

分 类 号：TG1[金属学及工艺—金属学]