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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Decontamination of Bisphenol A from Aqueous Solution by Graphene Adsorption
TL;DR: Graphene could be regarded as a promising adsorbent for BPA removal in water treatment because of its unique sp(2)-hybridized single-atom-layer structure.
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Arsenene: Two-dimensional buckled and puckered honeycomb arsenic systems
TL;DR: In this article, the authors investigate the stability and electronic properties of the honeycomb structure of the arsenene system based on first-principles calculations and find that both buckled and puckered arsenenes possess indirect gaps.
Journal ArticleDOI
Environment-Friendly Method To Produce Graphene That Employs Vitamin C and Amino Acid
TL;DR: In this article, an environment-friendly method to produce graphene that employs Vitamin C as the reductant and amino acid as the stabilizer was reported. But this method is not suitable for the use of biocompounds.
Journal ArticleDOI
Platinum nanoparticle ensemble-on-graphene hybrid nanosheet: one-pot, rapid synthesis, and used as new electrode material for electrochemical sensing.
TL;DR: It is found that PNEGHNs modified GCE shows a wide linear range and low detection limit for H2O2 and TNT detection, and may be an attractive robust and advanced hybrid electrode material with great promise for electrochemical sensors and biosensors design.
Journal ArticleDOI
Graphene-based materials for supercapacitor electrodes – A review
Qingqing Ke,John Wang +1 more
TL;DR: In this paper, a review summarizes recent development on graphene-based materials for supercapacitor electrodes, based on their macrostructural complexity, i.e., zero-dimensional (0D) (e.g., free-standing graphene dots and particles), 1D (1D), 2D (2D), 3D (3D), 4D (4D), 5D (5D), 6D), 7D, 8D, 9D, 10D, 11D, 12D, 13D, 14D, 15D, 16D,
References
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Journal ArticleDOI
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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.
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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.