Interwall Friction and Sliding Behavior of Centimeters Long Double-Walled Carbon Nanotubes

Rufan Zhang; Zhiyuan Ning; Ziwei Xu; Yingying Zhang; Huanhuan Xie; Feng Ding; Qing Chen; Qiang Zhang; Weizhong Qian; Yi Cui; Fei Wei

doi:10.1021/acs.nanolett.5b04820

Interwall Friction and Sliding Behavior of Centimeters Long Double-Walled Carbon Nanotubes

Nano Lett. 2016 Feb 10;16(2):1367-74. doi: 10.1021/acs.nanolett.5b04820. Epub 2016 Jan 21.

Authors

Rufan Zhang¹, Zhiyuan Ning², Ziwei Xu³, Yingying Zhang⁴, Huanhuan Xie^{1

4}, Feng Ding³, Qing Chen², Qiang Zhang¹, Weizhong Qian¹, Yi Cui^{5

6}, Fei Wei¹

Affiliations

¹ Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University , Beijing 100084, China.
² Key Laboratory for the Physics and Chemistry of Nanodevices, Peking University , Beijing 100871, China.
³ Institute of Textiles and Clothing, Hong Kong Polytechnic University , Kowloon, Hong Kong 999077, China.
⁴ Department of Chemistry and Center for Nano and Micro Mechanics, Tsinghua University , Beijing 100084, China.
⁵ Department of Materials Science and Engineering, Stanford University , Stanford, California 94305, United States.
⁶ Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory , 2575 Sand Hill Road, Menlo Park, California 94025, United States.

PMID: 26784439
DOI: 10.1021/acs.nanolett.5b04820

Abstract

Here, we studied the interwall friction and sliding behaviors of double-walled carbon nanotubes (DWCNTs). The interwall friction shows a linear dependence on the pullout velocity of the inner wall. The axial curvature in DWCNTs causes the significant increase of the interwall friction. The axial curvature also affects the sliding behavior of the inner wall. Compared with the axial curvature, the opening ends of DWCNTs play tiny roles in their interwall friction.

Keywords: Carbon nanotubes; curvature; friction; interaction; superlubricity; ultralong.

Publication types

Research Support, Non-U.S. Gov't