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.

引用

页数：8

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