The Crystal Structure, Conductivity Character and Ionic Migration of Samarium Doped-Ceria (SDC) and its Composite with Sodium Carbonate

Fitria Rahmawati; Dani Gustaman Syarif; Putri Pradnya Paramita; Eddy Heraldy

doi:10.4028/www.scientific.net/AMR.896.49

Paper Titles

One-Step Fabrication of Short Nanofibers by Electrospinning: Effect of Needle Size on Nanofiber Length
p.33

Carbon Dioxide Permeation Characteristics in Asymmetric Polysulfone Hollow Fiber Membrane: Effect of Constant Heating and Progressive Heating
p.37

Electrospinning of Poly(vinyl alcohol)/Chitosan via Multi-Nozzle Spinneret and Drum Collector
p.41

A Simple Way of Producing Nano Anatase TiO₂ in Polyvinyl Alcohol Fibers
p.45

The Crystal Structure, Conductivity Character and Ionic Migration of Samarium Doped-Ceria (SDC) and its Composite with Sodium Carbonate
p.49

Preparation of Sulfonate Grafted Silica/Chitosan-Based Proton Exchange Membrane
p.54

Synthesis and Characterization of Solid Polymer Electrolyte from N-Succinyl Chitosan and Lithium Perchlorate
p.58

Epoxidised Natural Rubber Based Polymer Electrolyte Systems for Electrochemical Device Applications
p.62

Eggs Shell Membrane as Natural Separator for Supercapacitor Applications
p.66

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 896The Crystal Structure, Conductivity Character and...

The Crystal Structure, Conductivity Character and Ionic Migration of Samarium Doped-Ceria (SDC) and its Composite with Sodium Carbonate

Abstract:

This paper discusses the crystal structure, the conductivity character and ionic migration inside Sm_0.2Ce_0.8O_1.9(SDC) crystal and it’s composite with sodium carbonate salt, Na₂CO₃ (NSDC). XRD measurement equipped with Le Bail refinement shows that SDC crystallized in single phase of cubic with space group of Fm3m. The addition of Na₂CO₃ does not change the crystal structure of SDC however it increases the cell parameters. NSDC has a lower ionic conductivity than the SDC at the same temperature. However at 600 °C, SDC provides electronic conductivity which indicates the diffusion of electrons between the electrolyte and electrode caused by the reduction of Ce(IV) to Ce(III). It may cause a short circuit and the fuel cell performance if it is used as electrolyte. Meanwhile, NSDC still produces pure ionic conductivity at 600 °C which indicates a better chemical stability. Based on its capacitance values, it is known that the ionic conductivity of SDC is generated by migration of ions inside grain, while the conductivity of NSDC is generated by the migration of ions between grains or it is named as grain boundaries conductivity.

You might also be interested in these eBooks

Advanced Materials Science and Technology

View Preview

Info:

Periodical:

Advanced Materials Research (Volume 896)

Pages:

49-53

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.896.49

Citation:

Cite this paper

Online since:

February 2014

Authors:

Fitria Rahmawati*, Dani Gustaman Syarif, Putri Pradnya Paramita, Eddy Heraldy

Keywords:

Carbonate-SDC Composite, Conductivity, Crystal Structure, Fuel Cell (FC), Samarium Doped-Ceria, Solid Electrolyte

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] B.C.H. Steele, A. Heinzel, Materials for fuel cell technologies. Nature. 414 (2001) 345-352.

DOI: 10.1038/35104620

Google Scholar

[2] M. Godickemeier, L.J. Gauckler, Engineering of solid oxide fuel cells with ceria-based electrolytes. J. Electrochem. Soc. 145 (1998) 414-420.

DOI: 10.1149/1.1838279

Google Scholar

[3] S.D. Kim, H. Moon, S.H. Hyun, J. Moon, J. Kim, H.W. Lee, Nano composite materials for high performance and durability of solid oxide fuel cells. J. Power. Sources. 163(2006) 392-397.

DOI: 10.1016/j.jpowsour.2006.09.015

Google Scholar

[4] K. Sangtae, J. Maier, Partial electronic and ionic conduction in nanocrystalline ceria: role of space charge. J. Eur. Ceram. Soc. 24 (2004) 1919-(1923).

DOI: 10.1016/s0955-2219(03)00525-9

Google Scholar

[5] B. Zhu, X.R. Liu, P. Zhou, X.T. Yang, Z.G. Zhu, W. Zhu, Innovatice solid carbonate-ceria composite electrolyte fuel cells. Electrochem. Commun. 3 (2001) 566-571.

DOI: 10.1016/s1388-2481(01)00222-3

Google Scholar

[6] X. Wang, Y. Ma, R. Rizwan, M. Mamoun, B. Zhu, Novel core shell SDC/amorphous Na2CO3 nanocomposite electrolyte for low temperature SOFC. Electrochem. Commun. 10 (2008) 1617-1620.

DOI: 10.1016/j.elecom.2008.08.023

Google Scholar

[7] J.B. Huang, Z.Q. Mao, Z.X. Liu, C. Wang, Performance of fuel cells with proton-conducting ceria-based composite electrolyte and nickel-based electrodes. J. Power Sources. 175 (2008) 238-243.

DOI: 10.1016/j.jpowsour.2007.09.018

Google Scholar

[8] B. Zhu, X. Liu, Z. Zhu, W. Zhu, R. Ljunberg, Solid oxide fuel cell (SOFC) using industrial grade mixed rare-earth oxide electrolyte. Int. J. Hydrogen. Energy. 33 (2008) 3385.

DOI: 10.1016/j.ijhydene.2008.03.065

Google Scholar

[9] E. Barsoukov and J.R. Macdonald, Impedance Spectroscopy: Theory, Experiment and Applications, 2nded., A John Wiley & Sons, Inc., New York, (2005).

Google Scholar

[10] R.C. Agrawal and R.K. Gupta, Review Superionic Solids: Composite Electrolyte Phase- an Overview, Journal of Material Science 34 (1999) 1131-1162.

Google Scholar

[11] P. Martin, M.L. Lopez, C. Pico, M.L. Veiga, Li(4-x)/3Ti(5-2x)/3CrxO4 (0≤x≤0. 9) Spinels: New Negatives for Lithium Batteries, Solid State Sciences 9 (2007) 521-526.

DOI: 10.1016/j.solidstatesciences.2007.03.023

Google Scholar