Study of the interaction between copper and carbon nanotubes

被引：34

作者：

Bittencourt, Carla ^{[2
]}

Ke, Xiaoxing ^{[2
]}

Van Tendeloo, Gustaaf ^{[2
]}

Thiess, Sebastian ^{[3
]}

Drube, Wolfgang ^{[3
]}

Ghijsen, Jacques ^{[4
]}

Ewels, Chris P. ^{[1
]}

机构：

[1] Univ Nantes, IMN, CNRS, F-44322 Nantes, France

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

[3] Deutsch Elektronen Synchrotron DESY, D-22603 Hamburg, Germany

[4] Univ Namur, LISE PMR, B-5000 Namur, Belgium

来源：

CHEMICAL PHYSICS LETTERS | 2012年 / 535卷

基金：

欧洲研究理事会;

关键词：

OXYGEN; FUNCTIONALIZATION; PLASMA; REDUCTION; INTERFACE; CU2O;

D O I：

10.1016/j.cplett.2012.03.045

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：

Copper deposited by thermal evaporation onto pristine and oxygen plasma treated carbon nanotubes (CNTs) diffuse over the CNT surface, coalescing and forming crystalline islands. The nucleation sites of the islands are preferentially defects, and more homogeneous island dispersion was observed at the CNT oxygen functionalized surface. The presence of weakly bound oxygen atoms at the CNT surface induces the formation of Cu-O bonds at the Cu/CNT interface, as described through density functional calculations. Exposure to air allows further oxidation to facetted crystalline Cu2O. Oxygen plasma pretreatment represents a promising route for homogenous disperse Cu2O nanoparticle decoration of CNTs. (C) 2012 Elsevier B. V. All rights reserved.

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页码：80 / 83

页数：4

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