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Complete configurations of monolayer graphene with zigzag-edged hexagonal nanohole are systematically built using three indices. The three integers lead to an atomistic precisely gap opening criteria, which steered via density functional theory based calculations. The guiding rule reveals that the semimetallic and semiconducting variation is consistent with a peculiar sequence with a period of 3 for...
We report on the modification of graphene oxide (GO) with poly(vinyl alcohol) (PVA) leading to the mechanical improvement of GO based materials. First, GO was covalently functionalised with PVA by esterification of carboxylic groups on GO with hydroxyl groups of PVA resulting in functionalised f-(PVA)GO. This was carried out for PVA of six different molecular weights. This functionalised graphene...
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