▎ 摘 要
The interactions between Pt(n) clusters (n = 7) via the deformation of the planar configuration so as to attain the planar-edge/graphene contact. For much larger clusters (n >= 10), the adsorption as a 3D cluster becomes the most stable due to the stability of the 3D configuration itself as well as substantial Pt-C interactions of edge or corner Pt atoms. The interfacial interaction between a Pt cluster and graphene seriously depends on the shape and size of a cluster and the manner of contact on a graphene sheet. (C) 2009 Elsevier B.V. All rights reserved.