| Summary: | This work presents a hydrothermal synthesis approach to produce novel schistose molybdenum trioxide (MoO<sub>3</sub>) powders with wide application, and introduces a facile electrophoresis assembly technique to construct the superhydrophobic MoO<sub>3</sub> films (SMFs) with contact angle up to 169 ± 1° at normal pressure and temperature. The microstructures and chemical compositions of product were analyzed by field emission scanning electron microcopy (FESEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD). The wettability and stability studies indicate that the SMFs all show great resistance in various environments with adjusting factors, including droplets with different surface tension, pH, relative humidity, etc., and the stability can be maintained at least for five months. Notably, this paper will provides a valuable reference for designing novel oxide powders and their high-efficient hydrophobic film formation with self-cleaning or water proof properties.
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