▎ 摘　　要

NOVELTY - Integral graphene-carbon hybrid foam (F1) comprises multiple pores and pore walls. The pore walls comprise single-layer or few-layer graphene sheets comprising graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene and/or nitrogenated graphene and containing 0.001-25 wt.% of non-carbon elements. The few-layer graphene sheets have 2-10 layers of stacked graphene planes having an inter-plane spacing d(002) of 0.3354-0.40 nm as measured by X-ray diffraction. The single-layer or few-layer graphene sheets are chemically bonded by a carbon material and have a carbon material-to-graphene weight ratio of 1/200 to 1/2. USE - The foams are useful to produce products e.g. devices. ADVANTAGE - The foams: exhibit a thermal conductivity, electrical conductivity, elastic modulus, and/or strength that are comparable to or greater than those of the conventional graphite or carbon foams; and are produced in a simple method. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) an integral graphene-carbon hybrid foam (F2) comprising multiple pores and pore walls, where the pore walls comprise single-layer or few-layer graphene sheets comprising doped graphene and/or chemically functionalized graphene and containing 0.001-25 wt.% of non-carbon elements, the few-layer graphene sheets have 2-10 layers of stacked graphene planes having an inter-plane spacing d(002) of 0.3354-0.40 nm as measured by X-ray diffraction, and the single-layer or few-layer graphene sheets are chemically bonded by a carbon material and have a carbon material-to-graphene weight ratio of 1/200 to 1/2; and (2) an integral pristine graphene-carbon hybrid foam (F3) comprising multiple pores and pore walls, where the pore walls comprise single-layer or few-layer pristine graphene sheets chemically bonded by a carbon material having a carbon material-to-graphene weight ratio of 1/200 to 1/2, the few-layer graphene sheets have 2-10 layers of stacked graphene planes having an inter-plane spacing d(002) of 0.3354 nm to 0.40 nm as measured by X-ray diffraction.