Proton-Conducting Composites Based on the Cs4(HSO4)3(H2PO4) Compound

Proton-conducting composites xCs4(HSO4)3(H2PO4) + (1–x)AlPO4 in the composition range x = 0.9–0.5 have been obtained. Their transport properties are studied by impedance spectroscopy. The dependences of the phase composition of the materials on the component ratio are investigated by X-ray diffraction analysis. The spatial phase distribution in the materials is analyzed using scanning electron microscopy.