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Pressure‐induced increase of ionic conduction of water‐treated NaA zeolite
Author(s) -
Secco Richard A.,
Goryainov Sergei V.,
Huang Yining
Publication year - 2005
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200510033
Subject(s) - zeolite , conductivity , dielectric spectroscopy , ionic conductivity , chemistry , ion , ionic bonding , analytical chemistry (journal) , inorganic chemistry , materials science , chromatography , electrochemistry , organic chemistry , electrode , electrolyte , catalysis
Dehydrated, hydrated and superhydrated NaA zeolites have been studied by impedance spectroscopy with scanning frequency from 1 Hz to 1 MHz at high pressure up to 4.5 GPa. A considerable anomalous increase in electrical conductivity in the range of 0.5–1.1 GPa was observed in superhydrated NaA zeolite containing additional water in the channels. A very high mobility of ions in superhydrated zeolite may be associated with the liquid‐like state of the water‐cation stuffing of zeolite channels. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)