Ba- and La- Strontium Cobalt Ferrite Carbonate Composite as Cathode Materials for Low Temperature SOFC

Hamimah Abdul Rahman; Linda Agun; Mohamed Hakim Ahmad Shah

doi:10.4028/www.scientific.net/KEM.694.125

Paper Titles

Synthesis and Characterization of Rice Husk Ash Derived - Silica Aerogel Beads Prepared by Ambient Pressure Drying
p.106

The Effects of Thermal Ageing on Properties and Microstructure of Al-6063 Alloy
p.111

Electron Microscopic Investigation on Nanostructure Behaviors of Thermal Oxidation Copper
p.116

A Study on (K, Na) NbO₃ Thin Films with Optimized Layer: Effect on Physical and Electrical Properties
p.120

Ba- and La- Strontium Cobalt Ferrite Carbonate Composite as Cathode Materials for Low Temperature SOFC
p.125

Effect of Dipping Numbers on the Crystalline Phase and Microstructure of Ag-TiO₂ Coating
p.133

Influence of HCl Content and Ageing Time on TiO₂ Coating Formation in Acidic Sol-Gel Solutions
p.138

Adhesion Improvement of Nickel Electrodeposited on Aluminum Alloy 7075 by Modified Single Zincating Process
p.143

Electroless Ni-Co-Cu-P Alloy Deposition in Alkaline Hypophosphite Based Bath
p.151

HomeKey Engineering MaterialsKey Engineering Materials Vol. 694Ba- and La- Strontium Cobalt Ferrite Carbonate...

Ba- and La- Strontium Cobalt Ferrite Carbonate Composite as Cathode Materials for Low Temperature SOFC

Abstract:

Barium strontium cobalt ferrite (BSCF) and lanthanum strontium carbonate ferrite (LSCF)–samarium-doped ceria carbonate (SDCc) composite cathodes were developed based on various molar ratio of binary carbonate. The percentage of molar ratio for (Li/Na)₂ binary carbonate in the composite cathodes were 67:33, 62:38, and 53:47. Influence of (Li/Na)₂binary carbonate addition on BSCF-SDCc and LSCF-SDCc were studied in terms of chemical, thermal, and physical properties. The composite-cathode powders were prepared using high-energy ball milling (HEBM) and followed by calcination at 750 °C for 2h. Characterizations of the composite cathode were performed through Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), and dilatometry. The FTIR result verified the existence of carbonates in all the composite cathodes. The increment in the Na₂CO₃ molar ratio has contributed to the growth of the BSCF-SDCc particles as observed from the FESEM micrographs and particle size. The LSCF-SDCc composite cathodes revealed a lower (1.38-6.69%) thermal coefficient difference with SDCc electrolyte. The BSCF-SDCc and LSCF-SDCc composites with 53:47 mol.% of (Li/Na)₂ binary carbonate exhibit the applicable properties as SOFC cathode material.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 694)

Pages:

125-129

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.694.125

Citation:

Cite this paper

Online since:

May 2016

Authors:

Hamimah Abdul Rahman*, Linda Agun, Mohamed Hakim Ahmad Shah

Keywords:

Binary Carbonate, Cobalt Ferrite, Low-Temperature SOFC

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] M.H. Wu, J.L. Huang, K.Z. Fung, D.F. Lii, Application of samaria doped sculptured ceria/La1−xSrxCo1−yFeyO3−δ in cathode of SOFCs at intermediate temperature, Vacuum. 101 (2014) 57–62.

DOI: 10.1016/j.vacuum.2013.07.031

Google Scholar

[2] T.E. Burye, J.D. Nicholas, Improving La0. 6Sr0. 4Co0. 8Fe0. 2O3-δ infiltrated solid oxide fuel cell cathode performance through precursor solution desiccation, J. Power Sources. 276 (2015) 54–61.

DOI: 10.1016/j.jpowsour.2014.11.082

Google Scholar

[3] A. Yan, V. Maragou, A. Arico, M. Cheng, P. Tsiakaras, Investigation of a Ba0. 5Sr0. 5Co0. 8Fe0. 2O3−δ based cathode SOFC, Appl. Catal. B Environ. 76 (2007) 320–327.

DOI: 10.1016/j.apcatb.2007.06.010

Google Scholar

[4] L. Agun, H.A. Rahman, S. Ahmad, A. Muchtar, Durability and stability of LSCF composite cathode for intermediate-low temperature of solid oxide fuel cell (IT-LT SOFC): Short Review, Adv. Mater. Eng. Mater. III. 893 (2014) 732–737.

DOI: 10.4028/www.scientific.net/amr.893.732

Google Scholar

[5] L. Agun, M.S. Bakar, S. Ahmad, H.A. Rahman, Influence of Ag on the chemical and thermal compatibility of LSCF- SDCC for LT-SOFC, In Press (Trans Tech Publications, Switzerland).

DOI: 10.4028/www.scientific.net/amm.773-774.445

Google Scholar

[6] H.A. Rahman, A. Muchtar, N. Muhamad, H. Abdullah, La0. 6Sr0. 4Co0. 2Fe0. 8O3−δ–SDC carbonate composite cathodes for low-temperature solid oxide fuel cells, Mater. Chem. Phys. 141 (2013) 752–757.

DOI: 10.1016/j.matchemphys.2013.05.071

Google Scholar

[7] M. Chen, H. Zhang, L. Fan, C. Wang, B. Zhu, Ceria-carbonate composite for low temperature solid oxide fuel cell: Sintering aid and composite effect, Int. J. Hydrogen Energy, 39 (2014) 12309–12316.

DOI: 10.1016/j.ijhydene.2014.04.004

Google Scholar

[8] K. Park, S. Yu, J. Bae, H. Kim, Y. Ko, Fast performance degradation of SOFC caused by cathode delamination in long-term testing, Int. J. Hydrogen Energy. 35 (2010) 8670–8677.

DOI: 10.1016/j.ijhydene.2010.05.005

Google Scholar

[9] L. Agun, S. Ahmad, A. Muchtar, H. A. Rahman, Influence of binary carbonate on the physical and chemical properties of composite cathode for low-temperature SOFC, Adv. Mater. Res., 1087 (2015) 177–181.

DOI: 10.4028/www.scientific.net/amr.1087.177

Google Scholar

[10] M. Chen, B. H. Kim, Q. Xu, B. G. Ahn, Preparation and electrochemical properties of Ni–SDC thin films for IT-SOFC anode, J. Memb. Sci. 334 (2009) 138–147.

DOI: 10.1016/j.memsci.2009.02.023

Google Scholar

[11] S. Lee, H. Seob, S. Hoon, J. Kim, J. Moon, LSCF – SDC core shell high performance durable composite cathode, J. Power Sources 195 (2010) 118–123.

DOI: 10.1016/j.jpowsour.2009.06.079

Google Scholar

[12] S. Ahmad, M.S.A. Bakar, A. Muchtar, N. Muhamad, H.A. Rahman, The effect of milling speed and calcination temperature towards composite cathode LSCF-SDC carbonate, Adv. Mater. Res., 576 (2012) 220–223.

DOI: 10.4028/www.scientific.net/amr.576.220

Google Scholar