An efficient symmetrical solid oxide electrolysis cell with LSFM-based electrodes for direct electrolysis of pure CO2

被引：54

作者：

Peng, Xianzhu ^{[1
,2
]}

Tian, Yunfeng ^{[1
]}

Liu, Yun ^{[1
,2
]}

Wang, Wenjie ^{[1
]}

Jia, Lichao ^{[1
]}

Pu, Jian ^{[1
]}

Chi, Bo ^{[1
]}

Li, Jian ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Ctr Fuel Cell Innovat, Sch Mat Sci & Engn, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, China EU Inst Clean & Renewable Energy, Wuhan 430074, Peoples R China

来源：

JOURNAL OF CO2 UTILIZATION | 2020年 / 36卷 / 18-24期

基金：

中国国家自然科学基金;

关键词：

Symmetrical solid oxide electrolysis cell; Perovskite; CO2; electrolysis; CO Production; Stability; HYDROGEN-PRODUCTION; OXYGEN-ELECTRODE; DOPED TITANATE; CATHODE; PERFORMANCE; COMPOSITE; LA(SR)FE(MN)O-3; PEROVSKITE; ANODES;

D O I：

10.1016/j.jcou.2019.10.017

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, we study the perovskite La0.6Sr0.4Fe0.9Mn0.1O3-delta (LSFM) as both the cathode and anode in a symmetrical solid oxide electrolysis cell (SOEC) for direct high-temperature electrolysis of pure CO2. The cell with a configuration of LSFM-GDC vertical bar GDC vertical bar vertical bar YSZ vertical bar vertical bar GDC vertical bar LSFM-GDC performs with perfect electrochemical properties with a polarization resistance of 0.068 Omega cm(2) and a current density of 1.107 A/cm(2) at 800 degrees C and 1.744 A/cm(2) at 850 degrees C under an operating voltage of 2.0 V. The corresponding CO production rate at 800 degrees C and 2.0 V is 6.438 mL/(min.cm(2)). These results confirm that La0.6Sr0.4Fe0.9Mn0.1O3-delta can act as an excellent electrode material in a symmetrical SOEC for electrolysis of pure CO2.

引用

页码：18 / 24

页数：7

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