In-situ growth of nanoparticles-decorated double perovskite electrode materials for symmetrical solid oxide cells

Niu, Bingbing1,2; Lu, Chunling1,3; Yi, Wendi1; Luo, Shijing1; Li, Xiangnan1; Zhong, Xiongwei1; Zhao, Xingzhong2; Xu, Baomin1

2020

10.1016/j.apcatb.2020.118842

APPLIED CATALYSIS B-ENVIRONMENTAL   影响因子和分区

0926-3373

1873-3883

The development of symmetrical solid oxide fuel cells (SSOFCs) can accelerate the commercialization of SOFCs because it can reduce the fabrication cost, improve the thermomechanical compatibility between the electrolyte and electrodes, and enhance the ability of resisting coking and sulfur poisoning. In addition, it is more convenient to switch between the SOFC mode and the solid oxide electrolysis cell (SOEC) mode for the SSOFCs. In this work, we report a new family of double perovskite symmetrical electrodes Sr2Ti1–xCoxFeO6 (x = 0, 0.1, 0.2, 0.3, STCF) for SSOFCs. The Sr2Ti0.8Co0.2FeO6 (STC02 F) electrode can be exsoluted with the cobalt-iron alloy nanoparticles and can maintain the double perovskite structure in reducing atmosphere. The STC02 F electrode also has good chemical compatibility with La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) electrolyte. The polarization resistance (Rp) values of the STC02F-based symmetrical cells are 0.124 and 0.380 Ω cm² at 800 °C in air and in hydrogen, respectively. The output power densities of the single cell with the configuration STC02 F/LSGM (270 μm)/STC02 F reach 555, 180, 404, and 390 mW cm^–2 at 800 °C using H2, liquefied petroleum gas, C2H5OH, and CH3OH, respectively. Moreover, the symmetrical cell with STC02 F electrode shows good electrochemical performance and stability for the electrolysis of H2O or CO2 and co-electrolysis of H2O/CO2 at intermediate temperatures for SOECs.
© 2020 Elsevier B.V.

Symmetrical solid oxide fuel cells Structural stability In-situ exsolution nanoparticles Fuel flexibility Co-electrolysis of H2O/CO2

EI ; SCI

英语

第一 ; 通讯

[JCYJ20170412154554048]

Chemistry ; Engineering

Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical

WOS:000526110500006

Elsevier B.V.

20201108292668

Cobalt alloys ; Electrochemical electrodes ; Electrolysis ; Gallium compounds ; Iron alloys ; Lanthanum compounds ; Magnesium compounds ; Nanoparticles ; Perovskite ; Regenerative fuel cells ; Solid electrolytes ; Stability

Minerals:482.2 ; Iron Alloys:545.2 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Fuel Cells:702.2 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Solid State Physics:933

CHEMISTRY

EV Compendex

1.Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen; Guangdong Province; 518055, China
2.Department of Physics, Wuhan University, Wuhan; Hubei Province; 430072, China
3.Key Laboratory of Physics and Technology for Advanced Batteries, Ministry of Education, College of Physics, Jilin University, Changchun; Jilin Province; 130012, China

Niu, Bingbing,Lu, Chunling,Yi, Wendi,et al. In-situ growth of nanoparticles-decorated double perovskite electrode materials for symmetrical solid oxide cells[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2020,270.

Niu, Bingbing.,Lu, Chunling.,Yi, Wendi.,Luo, Shijing.,Li, Xiangnan.,...&Xu, Baomin.(2020).In-situ growth of nanoparticles-decorated double perovskite electrode materials for symmetrical solid oxide cells.APPLIED CATALYSIS B-ENVIRONMENTAL,270.

Niu, Bingbing,et al."In-situ growth of nanoparticles-decorated double perovskite electrode materials for symmetrical solid oxide cells".APPLIED CATALYSIS B-ENVIRONMENTAL 270(2020).