The effect of barium doping on the glass structure in the protonic conductive zinc phosphate glasses

Abstract

The protonic conducting zinc phosphate glasses containing barium ions were prepared by a melt-quenching method. The glass structures were evaluated by ³¹P MAS-NMR spectroscopy. The peaks of QP2 shifted to the side of lower magnetic fields with increasing the barium amount. The peak intensities of Q⁰ and Q¹ appeared strongly for the samples containing 10-30 mol% barium. These phosphate groups are expected be designed for improving the proton conductivity.