Tungsten carbide and montmorillonite (MMT) nanocomposite was prepared through combining an impregnation approach with a reduction-carbonization method using exfoliated MMT as a support. The samples were characterized by X-ray diffraction

scanning electron microscope and transmission electron microscope. The results showed that the structure of exfoliated MMT was lamellar. The thickness of exfoliated MMT layer was between 10 nm and 15 nm. The edge of exfoliated MMT layer rolled and the interplane distance of exfoliated MMT were enlarged. The crystal phase of the sample was composed of monotungsten carbide (WC)

bitungsten carbide (W2C) and MMT. The particles of tungsten carbide were distributed on the surface of exfoliated MMT. The electrochemical reduction activity of the nanocomposite for p-nitrophenol (PNP) was tested by cyclic voltammetry (CV) in acidic solution. It was found that WC/MMT nanocomposite was electrocatalytic active to PNP and its electrocatalytic activity was stable. This implied that the exfoliated MMT was one of the excellent composite carriers to improve the electrocatalytic property of WC

which can be used in other catalysts.