Year: 1996
Type: article
Abstract: 血αdertostudythethemoclectricprope荘yof theoxideionicandelectronicmixed oonduck｝rof10mo1％CaO-doped CeO2(CDC)，a new type of thermocell was prepared， in which platinum elcctrodes wcrc embcdded in the tube-typc sample to diminish the ㎞ge tempela加re gmd頃cnt over the electrodes due to the local hcat radiation from hcating fumace．Using this the㎜ocell，reproducible data wcrc obtained。Thc themoelectric powermea瓢edinCDCundervarious oxygen atmosphercs(Po2)from1．O to about10璽15 atm showed that the sign of Seebeck coefficients changed from minus to plus．This v面at㎞10fS㏄bc￠k cocfficicnts vs。Pαとwas well interprcted by considcring that(1)thc 血c皿㏄㎞cpowerooukibeadriving forcc to make actual and ellectτochcmical oxygen ㎞crinthe mixed conductor and(2)the electrode processes hILd limiting rates due to slow oxygen diffusion(oτoxygen gas cxhaustion at the cathode and evolution at the anodc)。
Authors: Masahiro KAMATA, Kenji JIN-NOUCHI, Takao ESAKA
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2466299573