Author/Authors :
Chi، نويسنده , , Dam Hieu and Cuong، نويسنده , , Nguyen Thanh and Tuan، نويسنده , , Nguyen Anh and Kim، نويسنده , , Yong-Tae and Bao، نويسنده , , Ho Tu and Mitani، نويسنده , , Tadaoki and Ozaki، نويسنده , , Taisuke and Nagao، نويسنده , , Hidemi، نويسنده ,
Abstract :
We present a DFT study for the adsorption of single Pt atom and Pt clusters on graphene surface and carbon nanotube. Adsorption of a Pt atom shows a heavy dependence of binding energy on the graphene curvature. The adsorbed Pt atoms tend to form clusters, than to disperse on the graphene surface. The Pt–Pt bond length and the charge transfer from Pt clusters to the nanotube vary as a function of cluster size. A simulation of oxygen adsorption suggests higher performance for catalytic activities of Pt clusters adsorbed on the nanotube, in comparison with free Pt clusters.
