Two classes of alkali metal single-ion conducting polymer electrolytes have been characterized and their conductivities examined. Both polymers are sodium ion conductors. The first class is based upon a tetra(alkoxy)-aluminate counterion incorporated into a polyether network, and the second has a sulfonate counterion covalently bonded to a phosphazene backbone. The temperature dependent and concentration dependent conductivities of these polymers are contrasted. Phosphazene polymers that are anion conductors are also discussed.

Reduced quantum efficiencies for the photocatalytic degradation of cyclohexanol, cyclododecanol, 2-hexanol, and benzyl alcohol are observed on TiO2 particles included within small pore zeolitic supports suspended in acetonitrile. A modest reduction in photocatalytic activity observed with TiO2 included within large pore zeolites and pillared clays is attributed to reflective and refractive losses of incident light. No appreciable substrate size selectivity could be observed in this series of supported TiO2 composites. TS-1, a titanium-containing zeolite with Ti in tetrahedral lattice sites, was photoactive, although ETS-10, a titanium-containing zeolite with Ti in octahedral lattice sites, was less so. The low quantum yield residual photoactivity observed with these alcoholic substrates on unmodified zeolites may derive from surface charge transfer complexation, as suggested by diffuse reflectance absorption measurements.