Ce0.80Sm0.10Ba0.05Er0.05O2-δ multi-doped ceria electrolyte for intermediate temperature solid oxide fuel cells

S. A. Muhammed Ali, Mustafa Anwar, Abdalla M. Abdalla, Mahendra Rao Somalu, Andanastuti Muchtar

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Novel multidoped ceria (Ce0.80Sm0.10Ba0.05Er0.05O2-δ) electrolyte powders were prepared through solid-state reaction at room temperature. Rare-earth and alkaline-earth elements, which include Er, Sm, and Ba, were used as dopants for CeO2 with a total mole ratio of 0.2. Uniaxial die-pressed powder pellets were densified by air-sintering from 1400 °C to 1600 °C for 6 h. The results of X-ray diffraction indicated a pure cubic fluorite crystal structure with a theoretical density of 7.363 g cm−3. The relative density and grain size of sintered pellets increased with increasing sintering temperature, which was followed by decreased ionic conductivity. Impedance measurements showed that the highest ionic conductivity was 1.86×10−2 S cm−1 at 800 °C for the sample sintered at 1500 °C.

Original languageEnglish
Pages (from-to)1265-1271
Number of pages7
JournalCeramics International
Volume43
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

Cerium compounds
Ionic conductivity
Solid oxide fuel cells (SOFC)
Powders
Electrolytes
Sintering
Fluorspar
Solid state reactions
Rare earths
Crystal structure
Earth (planet)
Doping (additives)
X ray diffraction
Temperature
Air

Keywords

  • A. Sintering
  • C. Ionic conductivity
  • D. Alkaline earth oxides
  • E. Fuel cells

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Ce0.80Sm0.10Ba0.05Er0.05O2-δ multi-doped ceria electrolyte for intermediate temperature solid oxide fuel cells. / Muhammed Ali, S. A.; Anwar, Mustafa; Abdalla, Abdalla M.; Somalu, Mahendra Rao; Muchtar, Andanastuti.

In: Ceramics International, Vol. 43, No. 1, 01.01.2017, p. 1265-1271.

Research output: Contribution to journalArticle

@article{e657973b20e84766bada1a02b1801fa8,
title = "Ce0.80Sm0.10Ba0.05Er0.05O2-δ multi-doped ceria electrolyte for intermediate temperature solid oxide fuel cells",
abstract = "Novel multidoped ceria (Ce0.80Sm0.10Ba0.05Er0.05O2-δ) electrolyte powders were prepared through solid-state reaction at room temperature. Rare-earth and alkaline-earth elements, which include Er, Sm, and Ba, were used as dopants for CeO2 with a total mole ratio of 0.2. Uniaxial die-pressed powder pellets were densified by air-sintering from 1400 °C to 1600 °C for 6 h. The results of X-ray diffraction indicated a pure cubic fluorite crystal structure with a theoretical density of 7.363 g cm−3. The relative density and grain size of sintered pellets increased with increasing sintering temperature, which was followed by decreased ionic conductivity. Impedance measurements showed that the highest ionic conductivity was 1.86×10−2 S cm−1 at 800 °C for the sample sintered at 1500 °C.",
keywords = "A. Sintering, C. Ionic conductivity, D. Alkaline earth oxides, E. Fuel cells",
author = "{Muhammed Ali}, {S. A.} and Mustafa Anwar and Abdalla, {Abdalla M.} and Somalu, {Mahendra Rao} and Andanastuti Muchtar",
year = "2017",
month = "1",
day = "1",
doi = "10.1016/j.ceramint.2016.10.075",
language = "English",
volume = "43",
pages = "1265--1271",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",
number = "1",

}

TY - JOUR

T1 - Ce0.80Sm0.10Ba0.05Er0.05O2-δ multi-doped ceria electrolyte for intermediate temperature solid oxide fuel cells

AU - Muhammed Ali, S. A.

AU - Anwar, Mustafa

AU - Abdalla, Abdalla M.

AU - Somalu, Mahendra Rao

AU - Muchtar, Andanastuti

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Novel multidoped ceria (Ce0.80Sm0.10Ba0.05Er0.05O2-δ) electrolyte powders were prepared through solid-state reaction at room temperature. Rare-earth and alkaline-earth elements, which include Er, Sm, and Ba, were used as dopants for CeO2 with a total mole ratio of 0.2. Uniaxial die-pressed powder pellets were densified by air-sintering from 1400 °C to 1600 °C for 6 h. The results of X-ray diffraction indicated a pure cubic fluorite crystal structure with a theoretical density of 7.363 g cm−3. The relative density and grain size of sintered pellets increased with increasing sintering temperature, which was followed by decreased ionic conductivity. Impedance measurements showed that the highest ionic conductivity was 1.86×10−2 S cm−1 at 800 °C for the sample sintered at 1500 °C.

AB - Novel multidoped ceria (Ce0.80Sm0.10Ba0.05Er0.05O2-δ) electrolyte powders were prepared through solid-state reaction at room temperature. Rare-earth and alkaline-earth elements, which include Er, Sm, and Ba, were used as dopants for CeO2 with a total mole ratio of 0.2. Uniaxial die-pressed powder pellets were densified by air-sintering from 1400 °C to 1600 °C for 6 h. The results of X-ray diffraction indicated a pure cubic fluorite crystal structure with a theoretical density of 7.363 g cm−3. The relative density and grain size of sintered pellets increased with increasing sintering temperature, which was followed by decreased ionic conductivity. Impedance measurements showed that the highest ionic conductivity was 1.86×10−2 S cm−1 at 800 °C for the sample sintered at 1500 °C.

KW - A. Sintering

KW - C. Ionic conductivity

KW - D. Alkaline earth oxides

KW - E. Fuel cells

UR - http://www.scopus.com/inward/record.url?scp=84995478890&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84995478890&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2016.10.075

DO - 10.1016/j.ceramint.2016.10.075

M3 - Article

AN - SCOPUS:84995478890

VL - 43

SP - 1265

EP - 1271

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 1

ER -