Adsorption and Diffusion of Uranium Adatom on Graphene and Graphene Nanoribbons:A First Principle St

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  Since its first discovery in experiment in 2004 [1],graphene has attracted rapidly increasing research efforts on both low-dimensional physical research and applications such as biological engineering,optical electronics,ultrafiltration,photovoltaic cells,energy storage and composite materials [2].Particularly,composite materials have been considered as the most promising candidates for Generation IV nuclear reactor structural materials and nuclear fuel materials.For instance,actinide fuels and fission products are enclosed into the pyrocarbon buffer layer and silicon carbide layers of the TRISO coated fuel particles,which are all sealed with graphite shell [3].
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