Study of proton conduction in thulium-doped barium zirconates at high temperatures

Mouloud Laidoudi, Ibrahim Abu Talib, Ramli Omar

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The specimens of BaZr1-xTmxO3-α (x = 0.02, 0.05, 0.10 and 0.15, α = x/2) have been prepared and characterized. The formation of the single perovskite phase in the samples was checked by x-ray diffraction. For the verification of the possible charge carriers in the sintered BaZr1-xTmxO3-α samples, three different electrochemical cell measurements were carried out. The measurements of electromotive force (emf) of hydrogen and steam concentration cells showed that the BaZr1-xTmxO3-α ceramic is a protonic conductor and the measurements of emf of the oxygen concentration cell showed that the BaZr0.90Tm0.10O3-α sample exhibited poor oxide ion conduction. Proton transport number tH was calculated and was found to be dependent on the content, x. The BaZr0.90Tm0.10O3-α sample showed the highest value of proton transport number in the temperature range 500≤T≤900 °C.

Original languageEnglish
Pages (from-to)3112-3120
Number of pages9
JournalJournal of Physics D: Applied Physics
Volume33
Issue number23
DOIs
Publication statusPublished - 7 Dec 2000

Fingerprint

barium zirconates
Thulium
thulium
Barium
Protons
Electromotive force
conduction
electromotive forces
protons
Electrochemical cells
Steam
Charge carriers
Perovskite
Temperature
Oxides
electrochemical cells
Hydrogen
Diffraction
cells
steam

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Study of proton conduction in thulium-doped barium zirconates at high temperatures. / Laidoudi, Mouloud; Talib, Ibrahim Abu; Omar, Ramli.

In: Journal of Physics D: Applied Physics, Vol. 33, No. 23, 07.12.2000, p. 3112-3120.

Research output: Contribution to journalArticle

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