Protonic SOFCs Using Perovskite-Type Conductors

Hiroo Yugami; Hisashi Kato; Fumitada Iguchi

doi:10.4028/www.scientific.net/AST.95.66

Paper Titles

Development of Carbon-Nanotube Composite Thread and its Application to "Thread Transistor"
p.38

Energy Gap Associated to Photocatalytic Activity of MWCNT/TiO₂/ZnO Nanocomposites
p.44

Carbon Coils-Polyurethane Composites for the Shielding Materials of Electromagnetic Interference
p.50

The Influence of the Exterior Surface on Grain Boundary Mobility Measurements
p.56

Protonic SOFCs Using Perovskite-Type Conductors
p.66

Vacancy Diffusion under a Stress and Kinetic of Nanovoid Growth in Cubic Metals
p.72

Two-Terminal Non-Volatile Memory Devices Using Silicon Nanowires as the Storage Medium
p.78

Extraction of Filament Properties in Resistive Random Access Memory (ReRAM) Consisting of Binary-Transition-Metal-Oxides
p.84

Elucidation of Metal Diffusion Mechanism in Conducting-Bridge Random Access Memory (CB-RAM) Using First-Principle Calculation
p.91

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 95Protonic SOFCs Using Perovskite-Type Conductors

Protonic SOFCs Using Perovskite-Type Conductors

Abstract:

High temperature solid oxide fuel cells (SOFCs) have high efficiency and low emissions and contribute to the saving of the fossil fuel and the decreasing of the CO₂ emission bringing about the global warning. As concerned about the development of electrolytes, oxide-ion conductors alternative to yttria-stabilized zirconia (YSZ) such as doped CeO₂, Sc-SZ and perovskite-type oxides (LaGaO₃) etc. have been reported to apply to the intermediate temperature SOFCs (IT-SOFCs).Some of perovskite-type oxides shows high proton conductivity at high temperature and are expected to the electrolyte materials for IT-SOFCs. In this paper we have investigated review the mixed electrical conductivity and the optical absorption spectrum of OH(D)-vibration of LaScO₃.We also evaluated its applicability to the electrolyte material for IT-SOFCs by testing the SOFC performance of Pt/LaScO₃/Pt single cell configuration.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advances in Science and Technology (Volume 95)

Pages:

66-71

DOI:

https://doi.org/10.4028/www.scientific.net/AST.95.66

Citation:

Cite this paper

Online since:

October 2014

Authors:

Hiroo Yugami*, Hisashi Kato, Fumitada Iguchi

Keywords:

LaScO₃, Perovskite Type Oxide, Proton, SOFC

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] H. Iwahara, T. Yajima, T. Hibino, K. Ozaki, H. Suzuki, Protonic conduction in calcium, strontium, and barium zirconates, Solid State Ionics 61/1-3 (1993) 65-69.

DOI: 10.1016/0167-2738(93)90335-z

Google Scholar

[2] K. Nomura, T. Takeuchi, S. Tanase, H. Kageyama, K. Tanimoto, Y. Miyazaki, Proton conduction in (La0. 9Sr0. 1)(MO3-delta)-O-III (M-III=Sc, In, and Lu) perovskites, Solid State Ionics 154 (2002) 647-652.

DOI: 10.1016/s0167-2738(02)00512-x

Google Scholar

[3] K. Katahira, Y. Kohchi, T. Shimura, H. Iwahara, Protonic conduction in Zr-substituted BaCeO3, Solid State Ionics 138/1, 2 (2000) 91-98.

DOI: 10.1016/s0167-2738(00)00777-3

Google Scholar

[4] F. Iguchi, N. Sata, T. Tsurui, H. Yugami, Microstructures and grain boundary conductivity of BaZr1-xYxO3 (x=0. 05, 0. 10, 0. 15) ceramics, Solid State Ionics 178/7-10 (2007) 691-695.

DOI: 10.1016/j.ssi.2007.02.019

Google Scholar

[5] H. Kato, T. Kudo, H. Naito, H. Yugami, Electrical conductivity of Al-doped La1-xSrxScO3 perovskite-type oxides as electrolyte materials for low-temperature SOFC, Solid State Ionics 159/3-4 (2003) 217-222.

DOI: 10.1016/s0167-2738(03)00101-2

Google Scholar

[6] H. Kato, H. Yugami, Doping effect of Sr2+ on electrical conductivity in La1-xSrxSc1-yAlyO3 perovskite-type oxides, Electrochemistry 76/5 (2008) 334-337.

DOI: 10.5796/electrochemistry.76.334

Google Scholar