Journal ArticleDOI
Superlubricity in centimetres-long double-walled carbon nanotubes under ambient conditions
Rufan Zhang,Zhiyuan Ning,Yingying Zhang,Quanshui Zheng,Qing Chen,Huanhuan Xie,Qiang Zhang,Weizhong Qian,Fei Wei +8 more
Reads0
Chats0
TLDR
It is shown that superlubricity can be realized in centimetres-long double-walled carbon nanotubes (DWCNTs) under ambient conditions, with an intershell friction lower than 1 nN that is independent of nanotube length.Abstract:
Friction and wear are two main causes of mechanical energy dissipation and component failure, especially in micro/nanomechanical systems with large surface-to-volume ratios. In the past decade there has been an increasing level of research interest regarding superlubricity, a phenomenon, also called structural superlubricity, in which friction almost vanishes between two incommensurate solid surfaces. However, all experimental structural superlubricity has been obtained on the microscale or nanoscale, and predominantly under high vacuum. Here, we show that superlubricity can be realized in centimetres-long double-walled carbon nanotubes (DWCNTs) under ambient conditions. Centimetres-long inner shells can be pulled out continuously from such nanotubes, with an intershell friction lower than 1 nN that is independent of nanotube length. The shear strength of the DWCNTs is only several pascals, four orders of magnitude lower than the lowest reported value in CNTs and graphite. The perfect structure of the ultralong DWCNTs used in our experiments is essential for macroscale superlubricity.read more
Citations
More filters
Journal ArticleDOI
Macroscale superlubricity enabled by graphene nanoscroll formation
Diana Berman,Sanket A. Deshmukh,Subramanian K. R. S. Sankaranarayanan,Ali Erdemir,Anirudha V. Sumant +4 more
TL;DR: Simulations showed that sliding of the graphene patches around the tiny nanodiamond particles led to nanoscrolls with reduced contact area that slide easily against the amorphous diamondlike carbon surface, contributing to superlubricity at engineering scale.
Journal ArticleDOI
Recent advances in metal-organic framework membranes for water treatment: A review.
Shujun Yu,Shujun Yu,Hongwei Pang,Shuyi Huang,Hao Tang,Shuqin Wang,Muqing Qiu,Zhongshan Chen,Hui Yang,Gang Song,Dong Fu,Baowei Hu,Xiangxue Wang +12 more
TL;DR: In this article, a comprehensive review of metal-organic framework (MOF) containing membranes for water treatment is presented. And the potential environmental application of MOF-containing membranes from four aspects (stability of MOFs, antifouling performance of membranes, compatibility between MOF fillers and polymer matrix, dispersity of nanoparticles in matrix), are analyzed.
Journal ArticleDOI
Structural superlubricity and ultralow friction across the length scales
TL;DR: The phenomenon of ultralow friction between sliding incommensurate crystal surfaces—structural superlubricity—is examined, and the challenges and opportunities involved in its extension to the macroscale are assessed.
Journal ArticleDOI
Approaches for Achieving Superlubricity in Two-Dimensional Materials.
TL;DR: This review outlines basic mechanisms for frictional energy dissipation during sliding of two surfaces against each other, and the procedures for manipulating friction and wear by introducing 2D materials at the tribological interface, and highlights recent progress in implementing2D materials for friction reduction to near-zero values-superlubricity-across scales from nano- up to macroscale contacts.
Journal ArticleDOI
Superlubricity of graphene nanoribbons on gold surfaces.
Shigeki Kawai,Andrea Benassi,Andrea Benassi,Enrico Gnecco,Hajo Söde,Rémy Pawlak,Xinliang Feng,Klaus Müllen,Daniele Passerone,Carlo A. Pignedoli,Pascal Ruffieux,Roman Fasel,Roman Fasel,Ernst Meyer +13 more
TL;DR: The atomically well-defined contact allows us to trace the origin of superlubricity, unraveling the role played by ribbon size and elasticity, as well as by surface reconstruction, and pave the way to the scale-up of superLubricity and thus to the realization of frictionless coatings.
References
More filters
Journal ArticleDOI
Strength and breaking mechanism of multiwalled carbon nanotubes under tensile load
TL;DR: The tensile strengths of individual multiwalled carbon nanotubes (MWCNTs) were measured with a "nanostressing stage" located within a scanning electron microscope and a variety of structures were revealed, such as a nanotube ribbon, a wave pattern, and partial radial collapse.
Journal ArticleDOI
Low-Friction Nanoscale Linear Bearing Realized from Multiwall Carbon Nanotubes
John Cumings,Alex Zettl +1 more
TL;DR: The controlled and reversible telescopic extension of multiwall carbon nanotubes is demonstrated, thus realizing ultralow-friction nanoscale linear bearings and constant-force nanosprings and near perfect, wear-free surfaces.
Journal ArticleDOI
Superlubricity of Graphite
Martin Dienwiebel,Gertjan S. Verhoeven,N. Pradeep,Joost W. M. Frenken,Jennifer A. Heimberg,Henny W. Zandbergen +5 more
TL;DR: By measuring atomic-scale friction as a function of the rotational angle between two contacting bodies, it is shown that the origin of the ultralow friction of graphite lies in the incommensurability between rotated graphite layers.
Journal ArticleDOI
Rotational actuators based on carbon nanotubes
A. M. Fennimore,T. D. Yuzvinsky,Wei-Qiang Han,Michael S. Fuhrer,Michael S. Fuhrer,John Cumings,John Cumings,Alex Zettl +7 more
TL;DR: This work reports on the construction and successful operation of a fully synthetic nanoscale electromechanical actuator incorporating a rotatable metal plate, with a multi-walled carbon nanotube serving as the key motion-enabling element.
Journal ArticleDOI
Tribology of diamond-like carbon films: recent progress and future prospects
Ali Erdemir,C. Donnet +1 more
TL;DR: Diamond-like carbon (DLC) films have attracted an overwhelming interest from both industry and the research community as mentioned in this paper, and they offer a wide range of exceptional physical, mechanical, biomedical and tribological properties that make them commercially essential for numerous industrial applications.
Related Papers (5)
Low-Friction Nanoscale Linear Bearing Realized from Multiwall Carbon Nanotubes
John Cumings,Alex Zettl +1 more