T0101-3-6 Analysis of graphene-supported platinum particles nanocomposites

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  • T0101-3-6 白金ナノ粒子とグラフェンのナノ構造解析(機能材料)

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Graphene is a single atomic layer of graphite which has two dimensional honeycomb structure. Althogh its structure is very simple, graphene has extraordinary physical properties. Its edge has a characteristic configuration called armchair (AC) or zigzag (ZZ). It is shown that, for round and hexagonal graphene flakes of small sizes, the edge configuration influences their energy in equilibrium. Graphene nanoribbons (GNRs) of various aspect ratios are equilibrated at low temperature. The energies of equilibrated graphene flakes with ZZ edges are lower than the energies of equilibrated graphene flakes with AC edges. Free graphene flakes undergo compressive edge stress, and vibrate at finite temperature. A constrained GNR also vibrates.

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