Highly conductive graphene by low-temperature thermal reduction and in situ preparation of conductive polymer nanocomposites

摘要

Polydopamine-coated graphene oxide (DGO) films exhibit electrical conductivities of 11 000 S m~(-1) and 30 000 S m~(-1) upon vacuum annealing at 130 ℃ and 180 ℃, respectively. Conductive poly(vinyl alcohol)/graphene and epoxy/graphene nanocomposites show low percolation thresholds due to the excellent dispersibility of the DGO sheets and their effective in situ reduction.