Metallic nanoparticles on plasma treated carbon nanotubes:: Nano2hybrids

被引：45

作者：

Bittencourt, C.

Felten, A.

Douhard, B.

Colomer, J.-F.

Van Tendeloo, G.

Drube, W.

Ghijsen, J.

Pireaux, J.-J.

机构：

[1] Univ Namur, Lise, B-5000 Namur, Belgium

[2] Univ Namur, RMN, B-5000 Namur, Belgium

[3] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium

[4] DESY, D-22603 Hamburg, Germany

来源：

SURFACE SCIENCE | 2007年 / 601卷 / 13期

关键词：

carbon nanotubes; metal clusters; XPS; TEM;

D O I：

10.1016/j.susc.2006.12.045

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Multi-wall carbon nanotubes (MWCNTs) were decorated with metal clusters by thermal evaporation. Transmission electron microscopy (TEM) shows that the nature and extent of metal coverage can be varied by plasma treating the MWCNT surface. The metal clusters on oxygen plasma treated arc-discharge MWCNTs have a more dense distribution than the clusters evaporated on as-synthesized are-discharge MWCNTs. In contrast, the plasma treatment did not affect the cluster distribution on CVD MWCNTs. Analyses of the valence band and the core levels by X-ray photoelectron spectroscopy suggest poor charge transfer between gold clusters and MWCNTs; on the contrary suggest good charge transfer between Ni clusters and MWCNTs. (c) 2007 Elsevier B. V. All rights reserved.

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收藏

页码：2800 / 2804

页数：5

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