Hierarchical Growth of Mixed Ammonium Molybdenum/Tungsten Bronze Nanorods

Abstract

Mixed ammonium molybdenum/tungsten bronzes are available in nanoscopic form via a straightforward solvothermal synthesis in acidic media. The emerging rods exhibit average lengths below 1 μm and diameters of 20−30 nm. They self-organize into manifold microscale patterns. The growth of mixed nanorods proceeds within a wide solvothermal parameter window (time, temperature, and pH). Intermediate morphologies give indications of a possible growth mechanism. The complex nanorod arrangements exhibit BET surface areas around 89 m2g-1, and they withstand heating to 450 °C.