Electromotive Force Measurements on Cells Involving Beta-Alumina Solid Electrolyte | Zendy

N. S. Choudhury | Zendy

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Electromotive Force Measurements on Cells Involving Beta-Alumina Solid Electrolyte

Author(s) -

N. S. Choudhury

Publication year - 1973

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/1.2403325

Subject(s) - electromotive force , electrolyte , galvanic cell , crystallite , oxygen , materials science , phase (matter) , electrode , aluminium , fast ion conductor , concentration cell , chemical engineering , inorganic chemistry , chemistry , analytical chemistry (journal) , metallurgy , electrical engineering , chromatography , organic chemistry , engineering

Open-circuit emf measurements have been made to demonstrate that a two-phase, polycrystalline mixture of beta-alumina and alpha-alumina could be used as a solid electrolyte in galvanic cells with reversible electrodes fixing oxygen or aluminum chemical potentials. These measurements indicate that such a two-phase solid electrolyte may be used to monitor oxygen chemical potentials as low as that corresponding to Al and Al2O3 coexistence (potentials of about 10 to the minus 47th power atm at 1000 K). The activity of Na2O in beta-alumina in coexistence with alpha-alumina was also determined by emf measurements.

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