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Graphene has recently been the subject of increased research interest on account of its unprecedented thermal and electronic conductivity and wonderful transparency along with the other intriguing properties.Moreover, unlikeCNTs, graphene is two-dimensional and hasuniformly arranged hexagonallattices, which can befacilelyfunctionalized by foreign units by means of bonding or attaching and thereby provide a valid route to the fabricationof variousgraphene-based composites.