Ni-doped A-site-deficient La0.7Sr0.3Cr0.5Mn0.5O3-δ perovskite as anode of direct carbon solid oxide fuel cells

被引：28

作者：

Cai, Weizi ^{[1
,2
]}

Zhou, Mingyang ^{[2
]}

Cao, Dan ^{[2
]}

Yan, Xiaomin ^{[2
]}

Li, Qing ^{[1
]}

Lu, Shengping ^{[1
]}

Mao, Caiyun ^{[1
]}

Li, Yuzhi ^{[1
]}

Xie, Yongmin ^{[3
]}

Zhao, Caiwen ^{[1
]}

Yu, Jialing ^{[1
]}

Ni, Meng ^{[4
]}

Liu, Jiang ^{[2
]}

Wang, Hailin ^{[1
]}

机构：

[1] South China Agr Univ, Coll Engn, Guangzhou 510640, Peoples R China

[2] South China Univ Technol, Sch Environm & Energy, New Energy Res Inst, Guangzhou Key Lab Surface Chem Energy Mat, Guangzhou 510006, Peoples R China

[3] Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Peoples R China

[4] Hong Kong Polytech Univ, Dept Bldg & Real Estate, Bldg Energy Res Grp, Hung Hom,Kowloon, Hong Kong 999077, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2020年 / 45卷 / 41期

基金：

中国国家自然科学基金;

关键词：

Direct carbon solid oxide fuel cell; Anode catalyst; Strontium and manganese co-doped lanthanum chromites; In situ exsolution; PERFORMANCE DIRECT CARBON; ACTIVATED CARBON; EXSOLUTION;

D O I：

10.1016/j.ijhydene.2020.05.266

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A Ni-doped A-site-deficient La0.7Sr0.3Cr0.5Mn0.5O3-delta perovskite (N-LSCM) was synthesized and systematically characterized towards the application as the anode electrode for direct carbon solid oxide fuel cells (DC-SOFCs). The microstructure and electrochemical properties of N-LSCM under the operation conditions of DC-SOFCs have been evaluated. An in-situ exsolution of Ni nanoparticles on the N-LSCM perovskite matrix is found, revealing a maximum power density of 153 mW cm(-2) for the corresponding DC-SOFC at 850 degrees C, compared to 114 mW cm(-2) of the cell with stoichiometric LSCM. The introduction of Ni nanoparticles exsolution and A-site deficient is believed to boost the formation of highly mobile oxygen vacancies and electrochemical catalytic activity, and further improves the output performance of the DC-SOFC. It thus promises as a suitable anode candidate for DC-SOFCs with whole-solid-state configuration. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：21873 / 21880

页数：8

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