▎ 摘　　要

Tungsten oxide nanoparticles (WO(x)NPs) are gaining increasing attention, but low stabiliity and poor dispersion of WO(x)NPs hinder their catalytic applications. Herein, WO(x)NPs were confined in graphene-analogous boron nitride (g-BN) by a one-step, in situ method at high temperature, which can enhance the interactions between WO(x)NPs and the support and control the sizes of WO(x)NPs in a range of about 4-5nm. The as-prepared catalysts were applied in catalytic oxidation of aromatic sulfur compounds in which they showed high catalytic activity. A balance between the W loading and the size distribution of the WO(x)NPs could govern the catalytic activity. Furthermore, a synergistic effect between g-BN and WO(x)NPs also contributed to high catalytic activity. The reaction mechanism is discussed in detail and the catalytic scope was enlarged.