Highly Dense Ba0.9La0.1Ce0.7Zr0.1Y0.15Zn0.05O3δ Electrolyte Material for Intermediate Temperature Solid Oxide Fuel Cells

Authors

Md. Mosfiqur Rahman, Faculty of Integrated Technologies, Universiti Brunei Darussalam, Gadong, BE1410, BruneiFollow
Abu Hanjala, Department of Physics, Mawlana Bhashani Science and Technology University, Santosh, Tangail - 1902, Bangladesh
Muhammed Ali, Fuel Cell Institute, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
Lukman Ahmed Omeiza, Faculty of Integrated Technologies, Universiti Brunei Darussalam, Gadong, BE1410, Brunei
Veena Raj, Faculty of Integrated Technologies, Universiti Brunei Darussalam, Gadong, BE1410, Brunei
Mary Donnabelle L. Balela, Sustainable Electronic Materials Group, Department of Mining, Metallurgical, and Materials Engineering, College of Engineering, University of the Philippines Diliman, Quezon City, 1101, Philippines
Abul Kalam Azad, Faculty of Integrated Technologies, Universiti Brunei Darussalam, Gadong, BE1410, BruneiFollow

Abstract

A new perovskite-type polycrystalline Ba0.9La0.1Ce0.7Zr0.1Y0.15Zn0.05O3−δ (BLCZYZn) electrolyte material was prepared by the solid-state reaction method in pure phase. The material was studied to understand the impact of co-doping of La3+ at the A-site and Zn2+ at the B-site to use in the intermediate temperature solid oxide fuel cells (IT-SOFCs). X-ray diffraction study shows that the material crystallizes in the phase purity with cubic symmetry in Pm-3m space group. Rietveld refinement of the XRD data shows the cell parameter a = 4.445 with 98.35% relative density. Scanning electron microscopy images confirm the highly dense material with distinct grain boundaries. Thermogravimetric analysis shows about 0.30% weight loss from RT to 1000 oC. Electrochemical impedance spectroscopy in in air shows the ionic conductivity of 2.83×10−4 Scm−1 at 700 oC with the activation energy of 0.62 eV. This material indicates great prospects in using as electrolyte for IT-SOFCs.

Article Type

Original Study

First Page

97

Last Page

103

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Recommended Citation

Rahman, Md. Mosfiqur; Hanjala, Abu; Ali, Muhammed; Omeiza, Lukman Ahmed; Raj, Veena; Balela, Mary Donnabelle L.; and Azad, Abul Kalam (2025) "Highly Dense Ba0.9La0.1Ce0.7Zr0.1Y0.15Zn0.05O3δ Electrolyte Material for Intermediate Temperature Solid Oxide Fuel Cells," Eurasian Journal of Physics and Functional Materials: Vol. 9: No. 2, Article 4.
DOI: https://doi.org/10.69912/2616-8537.1245