TY - JOUR
T1 - Electrical conduction properties of Sr-doped Bi4(SiO 4)3 with the eulytite-type structure
AU - Kitamura, Naoto
AU - Amezawa, Koji
AU - Uchimoto, Yoshiharu
AU - Tomii, Yoichi
AU - Hanada, Teiichi
N1 - Funding Information:
Acknowledgements A part of this work was supported by Industrial Technology Research Grant Program in ’05 from New Energy and Industrial Technology Development Organization (NEDO) of Japan. The authors acknowledge Dr. H. Miyamoto at New Eco Material Co. Ltd., Kochi, Japan, and Mr. Y. Nishikawa at the Technology Research Institute of Osaka Prefecture, Japan, for their help on material preparation.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007/8
Y1 - 2007/8
N2 - Electrical conduction in 1 mol% Sr-doped Bi4(SiO 4)3 with the eulytite-type structure at elevated temperatures was investigated with conductivity measurements. Conductivity of the material under wet condition was higher than that under dry condition, and were 1.2 × 10-6 - 9.7 × 10-5S cm-1 at 500-850 °C. From H/D isotope effects and p(O 2)-dependencies of the conductivity, it was found that the Sr-doped Bi4(SiO4)3 exhibited protonic conduction at all the temperatures investigated while contribution of p-type conduction became significant with increasing p(O2) and/or temperature. Protonic and p-type conductions in the material were discussed in terms of defect equilibria.
AB - Electrical conduction in 1 mol% Sr-doped Bi4(SiO 4)3 with the eulytite-type structure at elevated temperatures was investigated with conductivity measurements. Conductivity of the material under wet condition was higher than that under dry condition, and were 1.2 × 10-6 - 9.7 × 10-5S cm-1 at 500-850 °C. From H/D isotope effects and p(O 2)-dependencies of the conductivity, it was found that the Sr-doped Bi4(SiO4)3 exhibited protonic conduction at all the temperatures investigated while contribution of p-type conduction became significant with increasing p(O2) and/or temperature. Protonic and p-type conductions in the material were discussed in terms of defect equilibria.
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U2 - 10.1007/s10853-007-1518-9
DO - 10.1007/s10853-007-1518-9
M3 - Article
AN - SCOPUS:34547283423
SN - 0022-2461
VL - 42
SP - 6566
EP - 6571
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 16
ER -