Improved ionic conductivity of Ca-doped and Ca-La co-doped ceria electrolytes for intermediate temperature solid oxide fuel cells

被引：6

作者：

Manjanna, Jayappa ^{[1
]}

Jakati, Mubeen Hasanasab ^{[1
]}

Momin, Naeemakhtar ^{[1
,2
]}

机构：

[1] Rani Channamma Univ, Dept Chem, Belagavi 591156, Karnataka, India

[2] Ctr Nano & Mat Sci, JAIN Global Campus, Bengaluru 562112, Karnataka, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2024年 / 1005卷

关键词：

Solid oxide fuel cell; Electrolyte; Ca and La; doped CeO 2; Impedance; Ionic conductivity; Activation energy; ELECTRICAL-PROPERTIES; COMBUSTION SYNTHESIS; OPTICAL-PROPERTIES; ELECTROCHEMICAL PROPERTIES; RAMAN-SCATTERING; CEO2; NANOPARTICLES; SOFC; LANTHANUM; CERAMICS;

D O I：

10.1016/j.jallcom.2024.176085

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：

Improved ionic conductivity of electrolytes is necessary for solid oxide fuel cells, meant for the development of efficient and clean energy devices. This study is focused on the enhancement of ionic conductivity in Ca-doped and Ca-La co-doped cerium oxide (ceria) electrolytes for intermediate-temperature solid oxide fuel cells (ITSOFCs). The co-doped ceria electrolytes, LCDC20 (Ce0.8La0.1Ca0.1O2- delta), exhibited enhanced ionic conductivity of 1.06 x10- 1 S cm- 1 at 1073 K, when compared to conventional yttria-stabilized zirconia (YSZ) electrolytes, and has lower activation energy of 1.02 eV. Also, these co-doped electrolytes showed decreased sintering temperatures, which amounts to cost-effective electrolyte materials for IT-SOFCs.

引用

页数：13

共 99 条

[41] Surface controlled reduction kinetics of nominally undoped polycrystalline CeO2 [J].

Knoblauch, Nicole ;

Doerrer, Lars ;

Fielitz, Peter ;

Schmuecker, Martin ;

Borchardt, Guenter .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2015, 17 (08) :5849-5860

[42] Advanced electrocatalysts for fuel cells: Evolution of active sites and synergistic properties of catalysts and carrier materials [J].

Kong, Zhijie ;

Wu, Jingcheng ;

Liu, Zhijuan ;

Yan, Dafeng ;

Wu, Zhi-Peng ;

Zhong, Chuan-Jian .

EXPLORATION, 2025, 5 (01)

[43] Low-frequency raman scattering from CeO2 nanoparticles [J].

Kostic, R. ;

Askrabic, S. ;

Dohcevic-Mitrovic, Z. ;

Popovic, Z. V. .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2008, 90 (04) :679-683

[44]

Kurian M, 2014, INT NANO LETT, V4, P73, DOI 10.1007/s40089-014-0122-7

[45] Electrochemical characterization of vacuum plasma sprayed thin-film solid oxide fuel cells (SOFC) for reduced operating temperatures [J].

Lang, M ;

Franco, T ;

Schiller, G ;

Wagner, N .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2002, 32 (08) :871-874

[46] Electrical properties of nanocube CeO2 in advanced solid oxide fuel cells [J].

Li, Lingyao ;

Zhu, Bin ;

Zhang, Jing ;

Yan, Chunjie ;

Wu, Yan .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2018, 43 (28) :12909-12916

[47] Synthesis and characterization of Ce0.8Sm0.2-xPrxO2-δ (x=0.02-0.08) solid electrolyte materials [J].

Lin Xiaomin ;

Lu Qiuyue ;

Zhu Lili ;

Liu Xiaomei .

JOURNAL OF RARE EARTHS, 2015, 33 (04) :411-416

[48]

Liu Q., 2024, Nano Mater. Sci, DOI [10.1016/j.nanoms.2024.04.009, DOI 10.1016/J.NANOMS.2024.04.009]

[49] Determining the maximum lanthanum incorporation in the fluorite structure of La-doped ceria nanocubes for enhanced redox ability [J].

Loche, Danilo ;

Morgan, Lucy M. ;

Casu, Alberto ;

Mountjoy, Gavin ;

O'Regan, Colm ;

Corrias, Anna ;

Falqui, Andrea .

RSC ADVANCES, 2019, 9 (12) :6745-6751

[50] Effect of La3+, Pr3+, and Sm3+ triple-doping on structural, electrical, and thermal properties of ceria solid electrolytes for intermediate temperature solid oxide fuel cells [J].

Madhuri, Chittimadula ;

Venkataramana, Kasarapu ;

Shanker, Jada ;

Reddy, C. Vishnuvardhan .

JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 849

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