Effects of various co-dopants and carbonates on the properties of doped ceria-based electrolytes: A brief review

Research output: Contribution to journalReview article

7 Citations (Scopus)

Abstract

Solid oxide fuel cells (SOFCs) are the most efficient clean energy devices that directly convert fuel chemical energy to electricity. Traditional SOFCs operated under 800 °C to 1000 °C use yttria-stabilized zirconia (YSZ) as an electrolyte. This high temperature range limits the commercial use of conventional SOFCs. Resistive causes, such as expensive materials, thermal stress, and long start-up and shut-down times, also limit SOFC commercial use. In the last decade, research on SOFCs has focused on decreasing the operating temperature by developing novel materials, notably electrolyte materials with sufficient ionic conductivities. Doped ceria-based electrolytes demonstrate higher oxygen ion conductivity than YSZ, especially at low temperatures. Such electrolytes are also the most extensively studied electrolytes for SOFCs operating at 500 °C to 800 °C. Two strategies have been adopted to obtain sufficient ionic conductivity in singly doped ceria electrolytes: the doping of some co-dopant ions and the addition of carbonates (Li2CO3 and Na2CO3) in singly doped ceria. This paper aims to provide a concise review and outlook of various co-doped and composite electrolytes based on doped ceria and synthesized through various routes. The effects of different co-dopants and carbonates on the electrical properties of doped ceria-based electrolytes are also reviewed and discussed.

Original languageEnglish
Pages (from-to)9921-9928
Number of pages8
JournalInternational Journal of Applied Engineering Research
Volume11
Issue number19
Publication statusPublished - 1 Jan 2016

Fingerprint

Cerium compounds
Carbonates
Solid oxide fuel cells (SOFC)
Electrolytes
Doping (additives)
Yttria stabilized zirconia
Ionic conductivity
Ions
Thermal stress
Temperature
Electric properties
Electricity
Oxygen
Composite materials

Keywords

  • Carbonates
  • Co-Dopant
  • Doped ceria
  • Electrolyte
  • Solid oxide fuel cell

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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title = "Effects of various co-dopants and carbonates on the properties of doped ceria-based electrolytes: A brief review",
abstract = "Solid oxide fuel cells (SOFCs) are the most efficient clean energy devices that directly convert fuel chemical energy to electricity. Traditional SOFCs operated under 800 °C to 1000 °C use yttria-stabilized zirconia (YSZ) as an electrolyte. This high temperature range limits the commercial use of conventional SOFCs. Resistive causes, such as expensive materials, thermal stress, and long start-up and shut-down times, also limit SOFC commercial use. In the last decade, research on SOFCs has focused on decreasing the operating temperature by developing novel materials, notably electrolyte materials with sufficient ionic conductivities. Doped ceria-based electrolytes demonstrate higher oxygen ion conductivity than YSZ, especially at low temperatures. Such electrolytes are also the most extensively studied electrolytes for SOFCs operating at 500 °C to 800 °C. Two strategies have been adopted to obtain sufficient ionic conductivity in singly doped ceria electrolytes: the doping of some co-dopant ions and the addition of carbonates (Li2CO3 and Na2CO3) in singly doped ceria. This paper aims to provide a concise review and outlook of various co-doped and composite electrolytes based on doped ceria and synthesized through various routes. The effects of different co-dopants and carbonates on the electrical properties of doped ceria-based electrolytes are also reviewed and discussed.",
keywords = "Carbonates, Co-Dopant, Doped ceria, Electrolyte, Solid oxide fuel cell",
author = "Mustafa Anwar and Andanastuti Muchtar and Somalu, {Mahendra Rao}",
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T1 - Effects of various co-dopants and carbonates on the properties of doped ceria-based electrolytes

T2 - A brief review

AU - Anwar, Mustafa

AU - Muchtar, Andanastuti

AU - Somalu, Mahendra Rao

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Solid oxide fuel cells (SOFCs) are the most efficient clean energy devices that directly convert fuel chemical energy to electricity. Traditional SOFCs operated under 800 °C to 1000 °C use yttria-stabilized zirconia (YSZ) as an electrolyte. This high temperature range limits the commercial use of conventional SOFCs. Resistive causes, such as expensive materials, thermal stress, and long start-up and shut-down times, also limit SOFC commercial use. In the last decade, research on SOFCs has focused on decreasing the operating temperature by developing novel materials, notably electrolyte materials with sufficient ionic conductivities. Doped ceria-based electrolytes demonstrate higher oxygen ion conductivity than YSZ, especially at low temperatures. Such electrolytes are also the most extensively studied electrolytes for SOFCs operating at 500 °C to 800 °C. Two strategies have been adopted to obtain sufficient ionic conductivity in singly doped ceria electrolytes: the doping of some co-dopant ions and the addition of carbonates (Li2CO3 and Na2CO3) in singly doped ceria. This paper aims to provide a concise review and outlook of various co-doped and composite electrolytes based on doped ceria and synthesized through various routes. The effects of different co-dopants and carbonates on the electrical properties of doped ceria-based electrolytes are also reviewed and discussed.

AB - Solid oxide fuel cells (SOFCs) are the most efficient clean energy devices that directly convert fuel chemical energy to electricity. Traditional SOFCs operated under 800 °C to 1000 °C use yttria-stabilized zirconia (YSZ) as an electrolyte. This high temperature range limits the commercial use of conventional SOFCs. Resistive causes, such as expensive materials, thermal stress, and long start-up and shut-down times, also limit SOFC commercial use. In the last decade, research on SOFCs has focused on decreasing the operating temperature by developing novel materials, notably electrolyte materials with sufficient ionic conductivities. Doped ceria-based electrolytes demonstrate higher oxygen ion conductivity than YSZ, especially at low temperatures. Such electrolytes are also the most extensively studied electrolytes for SOFCs operating at 500 °C to 800 °C. Two strategies have been adopted to obtain sufficient ionic conductivity in singly doped ceria electrolytes: the doping of some co-dopant ions and the addition of carbonates (Li2CO3 and Na2CO3) in singly doped ceria. This paper aims to provide a concise review and outlook of various co-doped and composite electrolytes based on doped ceria and synthesized through various routes. The effects of different co-dopants and carbonates on the electrical properties of doped ceria-based electrolytes are also reviewed and discussed.

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KW - Co-Dopant

KW - Doped ceria

KW - Electrolyte

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