Author/Authors :
Bittencourt، نويسنده , , C. and Hecq، نويسنده , , M. and Felten، نويسنده , , A. and Pireaux، نويسنده , , J.J. and Ghijsen، نويسنده , , J. and Felicissimo، نويسنده , , M.P. and Rudolf، نويسنده , , P. and Drube، نويسنده , , W. and Ke، نويسنده , , X. and Van Tendeloo، نويسنده , , G.، نويسنده ,
Abstract :
The interaction between evaporated Pt and pristine or oxygen-plasma-treated multiwall carbon nanotubes (CNTs) is investigated. Pt is found to nucleate at defect sites, whether initially present or introduced by oxygen plasma treatment. The plasma treatment induces a uniform dispersion of Pt nanoparticles at the CNT surface. The absence of additional features in the C 1s core level spectrum indicates that no mixed Pt–C phase is formed. The formation of C–O–Pt bonds at the cluster-CNT interface is suggested to reduce the electronic interaction between Pt nanoparticles and the CNT surface.
