xCsH2PO4·(1-x)Te(OH)6 composites have been synthesized for the different compositions, x = 0.02, 0.04, 0.05, 0.06, 0.08 (labeled composites A-E). The composites were characterized by Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Thermogravimetry (TG) and Differential Thermal Analysis (DTA). Telluric acid, Te(OH)6, added to cesium dihydrogen phosphate (CsH2PO4) significantly effects the structure, particle size and thermal stability of the composite material. Enhanced thermal stability could lead to use of CsH2PO4 as an electrolyte in low temperature fuel cells.
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2.
OtomoJ., IshigookaT., KitanoT., TakahashiH. and NagamotoH., Phase transition and proton transport characteristics in CsH2PO4/SiO2 composites, Electrochimica Acta53 (2008), 8186–8195.
3.
PonomarevaV.G. and ShutovaE.S., High temperature behavior of CsH2PO4 and CsH2PO4-SiO2 composites, Solid State Ionics178 (2007), 729–734.
4.
OtomoJ., MinagawaN., WenC.J., EguchiK. and TakahashiH., Protonic conduction of CsH2PO4 and its composite with silica in dry and humid atmospheres, Solid State Ionic156 (2003), 357–369.
5.
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6.
KtariL., DammakM., MadaniA., MhiriT. and KolsiA.W., Conductivity study of a new protonic conductor Rb1.12(NH4)0.88SO4·Te(OH)6, Solid State Ionics145 (2001), 225–231.
