A nanoarchitectured cermet composite with extremely low Ni content for stable high-performance solid oxide fuel cells

被引：17
作者：
Park, Jung Hoon [1 ,2 ]
Lee, Jong-Ho [1 ,4 ]
Yoon, Kyung Joong [1 ]
Kim, Hyoungchul [1 ]
Ji, Ho-Il [1 ,4 ]
Yang, Sungeun [1 ]
Park, Sangbaek [1 ,4 ]
Han, Seung Min [2 ]
Son, Ji-Won [1 ,3 ]
机构：
[1] Korea Inst Sci & Technol KIST, Ctr Energy Mat Res, Seoul 02792, South Korea
[2] Korea Adv Inst Sci & Technol KAIST, Dept Mat Sci & Engn, Daejeon 34141, South Korea
[3] Korea Univ, KU KIST GREEN SCH, Grad Sch Energy & Environm, Seoul 02841, South Korea
[4] Korea Univ Sci & Technol UST, KIST Sch, Nanomat Sci & Engn, Seoul 02792, South Korea
来源：
ACTA MATERIALIA | 2021年 / 206卷
基金：
新加坡国家研究基金会;
关键词：
solid oxide fuel cells; anodes; reduction-oxidation cycles; nanostructures; Ni-GDC;
D O I：
10.1016/j.actamat.2020.116580
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A strategy for improving the stability of nickel-based solid oxide fuel cell (SOFC) anodes via compositional and microstructural engineering is presented. Ni content was reduced to 2 vol%, and nanosized Ni particles were uniformly dispersed in a mixed ionic-electronic conducting matrix comprising gadoliniumdoped ceria (GDC) using a thin-film technique. Remarkable stability with no performance deterioration even after 100 reduction-oxidation cycles could be observed for the optimized nanostructured anodes. Cell performance at 500 degrees C was enhanced, exceeding 650 mW/cm(2). This study offers valuable insights for enhancing the durability, performance, and productivity of SOFCs. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页数：8
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