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Electrical Properties of Superionic Conducting Glasses in the Pseudobinary System CuI‐Cu 2 MoO 4
Author(s) -
MACHIDA NOBUYA,
MINAMI TSUTOMU
Publication year - 1988
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1988.tb06414.x
Subject(s) - ion , ionic conductivity , electrical resistivity and conductivity , activation energy , materials science , conductivity , analytical chemistry (journal) , ionic bonding , thermal conduction , mineralogy , atmospheric temperature range , polarization (electrochemistry) , fast ion conductor , inorganic chemistry , chemistry , thermodynamics , composite material , electrolyte , electrode , physics , organic chemistry , chromatography , electrical engineering , engineering
Cu + ‐ion‐conducting glasses were prepared in the pseudo‐binary system CuI‐Cu 2 MoO 4 . These glasses have high ionic conductivities at room temperature in the range 10 −1 to 10° S·m −1 , which are 10 to 20 times greater than those of the Ag + ‐ion‐conducting glasses with the same iodide contents in the system AgI‐Ag 2 MoO 4 . The conductivities increase with increasing CuI content. The increase in the conductivity can be explained in terms of a decrease in the activation energy for conduction. The electronic conductivity was measured by the Wagner polarization method and indicates that the transport number of Cu + ions in those glasses is 0.9996 and larger.