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Title: Titanium doped LSCM anode for hydrocarbon fuelled SOFCs

Abstract

La{sub 0.75}Sr{sub 0.25}Cr{sub 0.5-x}Mn{sub 0.5}Ti{sub x}O{sub 3} (x = 0.1, 0.2) has been synthesized in solid state reaction method and tested as a potential anode material for solid oxide fuel cells. Rietveld refinement of X-ray powder diffraction data using Fullprof software shows that the materials crystallize in the rhombohedral symmetry in the R-3C space group. The cell parameters are: a = b = 5.5286 (4) Å, c = 13.408(1) Å, α = β = 90°, γ = 120°. Particle size distribution measurements show that the average particle size for x = 0.1 and 0.2 was 232.66 nm and 176.63 nm, respectively. The potential on particles were found to be −22.86 mV and −27.73 mV, for x = 0.1 and x = 0.2, respectively. Thermal expansion measurement using thermo-mechanical analyzer shows that the thermal expansion coefficient is 13.96 × 10{sup −6}/°C which is close to the thermal expansion of the state-of–the art YSZ electrolyte. Microstructure has been observed from scanning electron microscopy which shows a porous structure. Energy dispersive X-ray shows that the percentage of the different cations and anions in the structure are close to the chemical occupancies.

Authors:
; ;  [1]
  1. Faculty of Integrated Technologies, Universiti Brunei Darussalam, Gadong BE 1410 (Brunei Darussalam)
Publication Date:
OSTI Identifier:
22391677
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1660; Journal Issue: 1; Conference: ICoMEIA 2014: International Conference on Mathematics, Engineering and Industrial Applications 2014, Penang (Malaysia), 28-30 May 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANIONS; ANODES; CATIONS; CHROMIUM COMPOUNDS; DOPED MATERIALS; F CODES; HYDROCARBONS; LANTHANUM COMPOUNDS; MANGANATES; MICROSTRUCTURE; PARTICLE SIZE; POROUS MATERIALS; SCANNING ELECTRON MICROSCOPY; SOLID OXIDE FUEL CELLS; STRONTIUM TITANATES; THERMAL EXPANSION; TRIGONAL LATTICES; X-RAY DIFFRACTION; YTTRIUM OXIDES; ZIRCONIUM OXIDES

Citation Formats

Azad, Abul K., Hakem, Afizul, and Petra, Pg. M. Iskandar. Titanium doped LSCM anode for hydrocarbon fuelled SOFCs. United States: N. p., 2015. Web. doi:10.1063/1.4915787.
Azad, Abul K., Hakem, Afizul, & Petra, Pg. M. Iskandar. Titanium doped LSCM anode for hydrocarbon fuelled SOFCs. United States. doi:10.1063/1.4915787.
Azad, Abul K., Hakem, Afizul, and Petra, Pg. M. Iskandar. Fri . "Titanium doped LSCM anode for hydrocarbon fuelled SOFCs". United States. doi:10.1063/1.4915787.
@article{osti_22391677,
title = {Titanium doped LSCM anode for hydrocarbon fuelled SOFCs},
author = {Azad, Abul K. and Hakem, Afizul and Petra, Pg. M. Iskandar},
abstractNote = {La{sub 0.75}Sr{sub 0.25}Cr{sub 0.5-x}Mn{sub 0.5}Ti{sub x}O{sub 3} (x = 0.1, 0.2) has been synthesized in solid state reaction method and tested as a potential anode material for solid oxide fuel cells. Rietveld refinement of X-ray powder diffraction data using Fullprof software shows that the materials crystallize in the rhombohedral symmetry in the R-3C space group. The cell parameters are: a = b = 5.5286 (4) Å, c = 13.408(1) Å, α = β = 90°, γ = 120°. Particle size distribution measurements show that the average particle size for x = 0.1 and 0.2 was 232.66 nm and 176.63 nm, respectively. The potential on particles were found to be −22.86 mV and −27.73 mV, for x = 0.1 and x = 0.2, respectively. Thermal expansion measurement using thermo-mechanical analyzer shows that the thermal expansion coefficient is 13.96 × 10{sup −6}/°C which is close to the thermal expansion of the state-of–the art YSZ electrolyte. Microstructure has been observed from scanning electron microscopy which shows a porous structure. Energy dispersive X-ray shows that the percentage of the different cations and anions in the structure are close to the chemical occupancies.},
doi = {10.1063/1.4915787},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1660,
place = {United States},
year = {2015},
month = {5}
}