Design of solid oxide structure on the composite cathode for IT-SOFC

Authors

DOI:

https://doi.org/10.15587/1729-4061.2021.239162

Keywords:

solid oxide fuel cells, cobalt-free cathode composite, perovskite structure, oxygen content, conductivity

Abstract

Solid oxide structure of the cobalt-free composite has been exploited as a new cathode material for IT-SOFCs. The composite model system was synthesized using the metallic oxide material, which was formed by a solid-state reaction technique. The generation of the Sm0.5Sr0.25Ba0.25FeO3-δ (SSBF) model system was carried out during the sintering process. The weight loss and oxygen content were investigated by thermal gravimetric analysis (TG). Meanwhile, X-ray diffraction characterized the structure of the composite and thermal conductivity tested the conductivity properties. The results showed that the structure of the SSBF composite demonstrated the perovskite single phase leading to the structural design. The decomposition and evaporation of the constituent elements of the composite corresponded to weight losses during the constructing process. The oxygen content of the model system was 2.98 after the calcination process. The electrical conductivity value reached 2 S cm-1 at 400 °C and increases to a maximum of 7.5 S cm-1 at 710 °C. The metallic element played to generating the conductive behavior at the low temperature, while the ionic structure acted as elevated temperature. So, mixed ionic and electric conductors (MIEC) were employed comprehensively for creating the conductive properties. Based on the structure and conductivity results, the SSBF composite has a good chance as an alternative cathode material with a perovskite single phase for future TI-SOFCs applications

Author Biographies

Dianta Mustofa Kamal, Politeknik Negeri Jakarta

Doctor of Energy Conversion, Assistance Professor

Department of Mechanical Engineering

Iwan Susanto, Politeknik Negeri Jakarta

Doctor of Materials Science and Engineering, Assistance Professor

Department of Mechanical Engineering

Rahmat Subarkah, Politeknik Negeri Jakarta

Master of Thermo Fluids Engineering, Assistance Professor

Department of Mechanical Engineering

Fuad Zainuri, Politeknik Negeri Jakarta

Doctoral Candidate of Mechanical Engineering, Assistance Professor

Department of Mechanical Engineering

Belyamin, Politeknik Negeri Jakarta

Doctor of Energy Conversion, Assistance Professor

Department of Mechanical Engineering

Tia Rahmiati, Politeknik Negeri Jakarta

Master of Engineering in Metallurgy and Materials, Assistance Professor

Department of Mechanical Engineering

Sulaksana Permana, Universitas Indonesia

Doctor of Engineering in Metallurgy and Materials, Assistance Professor

Centre of Mineral Processing and Corrosion Research

Department of Metallurgy and Materials

Adi Subardi, Institut Teknologi Nasional Yogyakarta

Doctor of Materials Science and Engineering, Assistance Professor

Department of Mechanical Engineering

Yen-Pei Fu, National Dong Hwa University

Doctor of Materials, Professor

Department of Materials Science and Engineering

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Published

2021-08-31

How to Cite

Kamal, D. M., Susanto, I., Subarkah, R., Zainuri, F. ., Belyamin, Rahmiati, T., Permana, S., Subardi, A., & Fu, Y.-P. (2021). Design of solid oxide structure on the composite cathode for IT-SOFC . Eastern-European Journal of Enterprise Technologies, 4(5(112), 6–11. https://doi.org/10.15587/1729-4061.2021.239162

Issue

Vol. 4 No. 5(112) (2021): Applied physics

Section

Applied physics

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Copyright (c) 2021 Dianta Mustofa Kamal, Iwan Susanto, Rahmat Subarkah, Fuad Zainuri, Belyamin, Tia Rahmiati, Sulaksana Permana, Adi Subardi, Ye-Pei Fu

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