Intermolecular interactions dictating adhesion between ZnO and graphite

被引：10

作者：

Galan, Ulises ^{[1
]}

Sodano, Henry A. ^{[2
]}

机构：

[1] Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA

[2] Univ Florida, Gainesville, FL 32611 USA

来源：

CARBON | 2013年 / 63卷

基金：

美国国家科学基金会;

关键词：

CARBON NANOTUBES; COMPOSITES; ELECTRODE; STRENGTH; SURFACE; BOND;

D O I：

10.1016/j.carbon.2013.07.027

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：

Zinc oxide (ZnO) was recently demonstrated to strongly adhere to both pristine graphitic surfaces and oxidized surfaces; however, the bonding interaction between the two is unknown and has yet to be investigated. In this study, atomic force microscopy (AFM) liftoff in the dry state was performed with a ZnO coated AFM tip on highly oriented pyrolytic graphite (HOPG) such that the bonding interaction can be identified and used to design high strength interfaces. It is found that the ZnO film on the AFM tip becomes negatively charged after contacting an oxygen plasma treated HOPG surface, and once charged can strongly interact with other surfaces such as pristine HOPG through induced polarization' to create high adhesive energy. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：517 / 522

页数：6

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