Cesium–Sodium Ion Exchange on Hydrated Molybdenum Bronze and Formation of New Cesium Molybdenum Bronze by a Low-Temperature Synthesis Route

Abstract

The cesium-sodium ion exchange on the hydrated molybdenum bronze was investigated, and the proton in the intralayer site was found to prevent the complete ion-exchange of Cs/Na. The hydrated bronze of Cs with a larger ionic radius showed hydration behavior different than the bronzes of other alkali metals. Furthermore, the low-temperature synthesis route from hydrated molybdenum bronzes to alkali-metal molybdenum bronzes was investigated, and it was found that the route led to the formation of a new Cs molybdenum bronze, which was related to the family of blue alkali-metal molybdenum bronze A0.3MoO3. The lattice constants of the bronze werea=19.362(8),b=7.567(2), andc=10.506(4) Å, andβ=121.07(3)° (monoclinic system).