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Abstract

A preparation method and application of spindle-shaped W@CuO material with adjustable included angle includes the steps of: preparing a copper source solution and adding to a mixture of anionic surfactant and n-butanol; adding a tungsten source solution and dripping an alkali solution, then carrying out hydrothermal reaction, centrifugation, washing and drying. By controlling the growth rate of the high-energy surface at the water-oil interface with the salt concentration, surfactant concentration, supersaturation of water and n-butanol solutions, the monodispersed spindle-shaped structure with unique microstructure and an included angle of 27-74° can be prepared. The surface of W@CuO materials with different included angles shows different electric field strengths, which can effectively modulate the charge transfer during the catalytic process and improve the catalytic reaction activity. The unique spindle-shaped structure makes it have excellent hydrogen evolution performance in alkaline electrolysis of water.

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