Formation of Composites Based on CsHSO4 and Cs5H3(SO4)4 and Mechanism of Their Protonic Conduction

Vibrational spectra of finely divided amorphous CsHSO4,Cs5H3(SO4)4 · H2O, and composites based on these are measured and analyzed. An analysis of the spectra indicates the occurrence of substantial changes in the system of hydrogen bonds and in the spectral range of the sulfate group of acid sulfates in the composites. Structural dynamics of the SO4 tetrahedrons is in full conformance with protonic conduction and the data of x-ray diffraction analyses accompanied by differential scanning calorimetry. It is shown that mobility of protons in the composites increases. A mechanism of the formation of the composites and their conduction is proposed.