Homogeneously dispersed HPW/graphene for high efficient catalytic oxidative desulfurization prepared by electrochemical deposition.

In this work, reduced graphene oxide (rGO) with homogeneously dispersed phosphotungstate acid (HPW), were directly fabricated by using electrochemical strategy. In this one-pot route, the reduction of graphene oxide (GO) and HPW anchoring on rGO (HPW/rGO) have been achieved simultaneously. This strategy has not toxic reductants used, and meanwhile, produces high-quality rGO with sheet structure. Sheeted rGO could provide more anchor sites for HPW and prohibited HPW agglomeration. The produced HPW/rGO hybrid material performed high activity and durability in oxidative desulfurization (ODS) reaction due to the synergism of HPW and rGO. This work provides a novel sight for preparing high-efficient and stable catalyst for oxidative desulfurization. Unlabelled Image • Reducing graphene oxide and anchoring homogeneously dispersed phosphotungstate acid are achieved simultaneously. • Reduced graphene with paper sheet structure prevent phosphotungstate acid from aggregation. • The enhanced catalytic performance is attributed to good dispersion • This material exhibits good stability. [ABSTRACT FROM AUTHOR]