Deposition of a thin-film CGO electrolyte for solid oxide fuel cells

A. A. Solovyev, Anastasia Nikolaevna Kovalchuk, Igor Vyacheslavovich Ionov, S. V. Rabotkin, Anna Victorovna Shipilova, D. N. Terentev

Research output: Contribution to journalArticle

Abstract

Reducing the operating temperature of solid oxide fuel cells (SOFCs) from 800-1000°C is one of the main SOFC research goals. It can be achieved by lowering the thickness of an electrolyte (ZrO2:Y2O3 (YSZ) is widely used as electrolyte material). On the other hand the problem can be solved by using of another electrolyte material with high ionic conductivity at intermediate temperatures. Therefore the present study deals with magnetron sputtering of ceria gadolinium oxide (CGO), which has a higher conductivity compared to YSZ. The microstructure of CGO layers deposited on porous NiO/YSZ substrates by reactive magnetron sputtering of Ce:Gd cathode is investigated. Current voltage characteristics (CVC) of a fuel cell with NiO/YSZ anode, CGO electrolyte and LSCF/CGO cathode were obtained. It was shown that the power density of a fuel cell with CGO electrolyte weakly depends on the operating temperature in the range of 650-750°C in contradistinction to YSZ electrolyte, and is about 600-650 mW/cm2.

Original languageEnglish
Pages (from-to)776-780
Number of pages5
JournalKey Engineering Materials
Volume685
DOIs
Publication statusPublished - 2016
Event4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015 - Tomsk, Russian Federation
Duration: 21 Apr 201524 Apr 2015

Fingerprint

Gadolinium
Cerium compounds
Solid oxide fuel cells (SOFC)
Electrolytes
Thin films
Oxides
Magnetron sputtering
Fuel cells
Cathodes
Reactive sputtering
Ionic conductivity
Current voltage characteristics
Temperature
gadolinium oxide
Anodes
Microstructure
Substrates

Keywords

  • CGO electrolyte
  • Magnetron sputtering
  • NiO/YSZ anode
  • Solid oxide fuel cells

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Deposition of a thin-film CGO electrolyte for solid oxide fuel cells. / Solovyev, A. A.; Kovalchuk, Anastasia Nikolaevna; Ionov, Igor Vyacheslavovich; Rabotkin, S. V.; Shipilova, Anna Victorovna; Terentev, D. N.

In: Key Engineering Materials, Vol. 685, 2016, p. 776-780.

Research output: Contribution to journalArticle

Solovyev, A. A. ; Kovalchuk, Anastasia Nikolaevna ; Ionov, Igor Vyacheslavovich ; Rabotkin, S. V. ; Shipilova, Anna Victorovna ; Terentev, D. N. / Deposition of a thin-film CGO electrolyte for solid oxide fuel cells. In: Key Engineering Materials. 2016 ; Vol. 685. pp. 776-780.
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AU - Rabotkin, S. V.

AU - Shipilova, Anna Victorovna

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