Metal-supported SOFC with an aerosol deposited in-situ LSM and 8YSZ composite cathode

详细信息    查看全文

• 作者：Seung-Wook Baek^a ; Jihoon Jeong^b ; Harald Schlegl^c ; Abul K. Azad^d ; Dae Soo Park^e ; Un Bong Baek^a ; ^{ubbaek@kriss.re.kr" class="auth_mail" title="E-mail the corresponding author} ; Jung Hyun Kim^e ; ^{jhkim2011@hanbat.ac.kr" class="auth_mail" title="E-mail the corresponding author} ; ^{jhkim1870@gmail.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Metal-supported solid oxide fuel cells (MS-SOFCs) ; Aerosol deposition process (ADP) ; Cathode ; Sintering process ; Electrochemical property
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：1 February 2016
• 年：2016
• 卷：42
• 期：2
• 页码：2402-2409
• 全文大小：1364 K

文摘

This study reports the micro-structural and electrochemical properties of metal-supported solid oxide fuel cells (MS-SOFCs) with an La_0.8Sr_0.2MnO_3−d (LSM)/8 mol% yttria-stabilized zirconia (8YSZ) composite cathode, fabricated at room temperature using the aerosol deposition process (ADP). The composite cathode fabricated with the ADP technique shows uniform distribution of components and pores and the interface between the cathode and the electrolyte displays excellent joining properties. The area specific resistance (ASR) of the ADP-LSM/8YSZ sample is approximately 1.50 Ω cm² at 800 °C, so this sample shows a significantly lower ASR value than the values usually reported for samples fabricated by the in-situ treatment method for MS-SOFCs. The power density of the cells with the ADP-LSM/8YSZ cathode coated on MS-SOFCs shows a maximum value of 0.38 mW cm⁻² at 800 °C and stable performance in the severe thermal durability test. Therefore, these research results can broaden the opportunities for adoption of the ADP coating processes to fabricate cathode materials in MS-SOFCs.