Journal ArticleDOI
Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
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TLDR
Graphene is established as the strongest material ever measured, and atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.Abstract:
We measured the elastic properties and intrinsic breaking strength of free-standing monolayer graphene membranes by nanoindentation in an atomic force microscope. The force-displacement behavior is interpreted within a framework of nonlinear elastic stress-strain response, and yields second- and third-order elastic stiffnesses of 340 newtons per meter (N m(-1)) and -690 Nm(-1), respectively. The breaking strength is 42 N m(-1) and represents the intrinsic strength of a defect-free sheet. These quantities correspond to a Young's modulus of E = 1.0 terapascals, third-order elastic stiffness of D = -2.0 terapascals, and intrinsic strength of sigma(int) = 130 gigapascals for bulk graphite. These experiments establish graphene as the strongest material ever measured, and show that atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.read more
Citations
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Reversed thermo-switchable molecular sieving membranes composed of two-dimensional metal-organic nanosheets for gas separation
Xuerui Wang,Chenglong Chi,Kang Zhang,Yuhong Qian,Krishna M. Gupta,Zixi Kang,Jianwen Jiang,Dan Zhao +7 more
TL;DR: In this article, the authors presented nm-thick molecular sieving membranes composed of porous two-dimensional metal-organic nanosheets, which possess pore openings parallel to gas concentration gradient allowing high gas permeation flux and high selectivity, which are proven by both experiment and molecular dynamics simulation.
Journal ArticleDOI
Large-scale mechanical peeling of boron nitride nanosheets by low-energy ball milling
TL;DR: In this article, a tailored ball milling condition was proposed to produce a high quality boron nitride (BN) nanosheets in high yield and efficiency. But the in-plane structure of the BN has not been damaged as shown by near edge X-ray absorption fine structure measurements.
Journal ArticleDOI
An Advanced Lithium-Ion Battery Based on a Graphene Anode and a Lithium Iron Phosphate Cathode
Jusef Hassoun,Francesco Bonaccorso,Marco Agostini,M. Angelucci,Maria Grazia Betti,Roberto Cingolani,Mauro Gemmi,Carlo Mariani,Stefania Panero,Vittorio Pellegrini,Bruno Scrosati +10 more
TL;DR: In this paper, an advanced lithium-ion battery based on a graphene ink anode and a lithium iron phosphate cathode is reported, which has an energy density of about 190 Wh kg−1 and a stable operation for over 80 charge-discharge cycles.
Journal ArticleDOI
Bio-inspired nacre-like composite films based on graphene with superior mechanical, electrical, and biocompatible properties.
TL;DR: Bio-inspired multifunctional composite films based on reduced poly(vinyl alcohol)/graphene oxide (R-PVA/GO) layers are prepared by a facile solution casting method followed by a reduction procedure that have excellent mechanical properties, electrical conductivity, and biocompatibility.
Journal ArticleDOI
Large-area atomically thin MoS2 nanosheets prepared using electrochemical exfoliation.
TL;DR: This study demonstrates that monolayer and few-layer MoS2 nanosheets can be obtained from electrochemical exfoliation of bulk MoS3 crystals, and microscopic and spectroscopic characterizations indicate that the exfoliated MoS1 nanosHEets are of high quality and have an intrinsic structure.
References
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Journal ArticleDOI
Raman spectrum of graphene and graphene layers.
Andrea C. Ferrari,Jannik C. Meyer,Vittorio Scardaci,Cinzia Casiraghi,Michele Lazzeri,Francesco Mauri,S. Piscanec,Da Jiang,K. S. Novoselov,S. Roth,A. K. Geim +10 more
TL;DR: This work shows that graphene's electronic structure is captured in its Raman spectrum that clearly evolves with the number of layers, and allows unambiguous, high-throughput, nondestructive identification of graphene layers, which is critically lacking in this emerging research area.
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Two-dimensional atomic crystals
Kostya S. Novoselov,Da Jiang,Fred Schedin,Timothy J. Booth,V. V. Khotkevich,Sergey V. Morozov,Andre K. Geim +6 more
TL;DR: By using micromechanical cleavage, a variety of 2D crystals including single layers of boron nitride, graphite, several dichalcogenides, and complex oxides are prepared and studied.
Journal ArticleDOI
The Phenomena of Rupture and Flow in Solids
TL;DR: In this article, the authors investigated the effect of surface scratches on the mechanical strength of solids, and some general conclusions were reached which appear to have a direct bearing on the problem of rupture, from an engineering standpoint, and also on the larger question of the nature of intermolecular cohesion.
Book
Physical properties of crystals
TL;DR: In this paper, the physical properties of crystals systematically in tensor notation are presented, presenting tensor properties in terms of their common mathematical basis and the thermodynamic relations between them.
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.