Abstract
IR and RS spectra, structural, thermodynamical and transport properties of CsHSO4 and CsHSO4/SiO2 composites have been investigated. It is shown that CsHSO4 is stabilized in composites in phase II (monoclinic modification), which turns into amorphous state with increasing silicon dioxide content. A formation of disordered highly conducting states of CsHSO4 in composites at the temperatures noticeably lower than superionic phase transition was stated. Bond length equalization in sulfate-ions, weakening of hydrogen bond system, and as a result easier proton transfer in composites in comparison with pure salt take place in these conducting states. Mechanism for formation of composites and their proton conductivity is proposed.
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Original Russian Text Copyright © 2005 by E. B. Burgina, V. G. Ponomareva, V. P. Baltahinov, and V. G. Kostrovskiy
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Translated from Zhurnal Strukturnoi Khimii, Vol. 46, No. 4, pp. 630–640, July–August, 2005.
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Burgina, E.B., Ponomareva, V.G., Baltahinov, V.P. et al. Spectroscopic investigation of structure and mechanism of proton conductivity CsHSO4 and composites CsHSO4/SiO2 . J Struct Chem 46, 608–618 (2005). https://doi.org/10.1007/s10947-006-0178-y
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DOI: https://doi.org/10.1007/s10947-006-0178-y