نتایج جستجو برای: layered graphene sheets

تعداد نتایج: 105850  

Journal: :journal of solid mechanics 0
a fatahi-vajari department of mechanical and aerospace engineering, science and research branch, islamic azad university, tehran, iran a. imam department of mechanical and aerospace engineering, science and research branch, islamic azad university, tehran, iran

this paper investigates the lateral vibration of single-layered graphene sheets based on a new theory called doublet mechanics with a length scale parameter. after a brief reviewing of doublet mechanics fundamentals, a sixth order partial differential equation that governs the lateral vibration of single-layered graphene sheets is derived. using doublet mechanics, the relation between natural f...

A Fatahi-Vajari A. Imam,

This paper investigates the lateral vibration of single-layered graphene sheets based on a new theory called doublet mechanics with a length scale parameter. After a brief reviewing of doublet mechanics fundamentals, a sixth order partial differential equation that governs the lateral vibration of single-layered graphene sheets is derived. Using doublet mechanics, the relation between natural f...

Journal: :international journal of nano dimension 0
a. tourki samaei young researchers club, chalous branch, islamic azad university, chalous, iran. sh. hosseini hashemi school of mechanical engineering, iran university of science and technology, tehran 16844, iran.

this paper proposed analytical solutions for the buckling analysis of rectangular single-layered graphene sheets under in-plane loading on all edges simply is supported. the characteristic equations of the graphene sheets are derived and the analysis formula is based on the nonlocal mindlin plate. this theory is considering both the small length scale effects and transverse shear deformation ef...

Journal: :Optics express 2014
Yuanjiang Xiang Jun Guo Xiaoyu Dai Shuangchun Wen Dingyuan Tang

A kind of tunable hyperbolic metamaterial (HMM) based on the graphene-dielectric layered structure at near-infrared frequencies is presented, and the engineered surface Bloch waves between graphene-based HMM and isotropic medium are investigated. Our calculations demonstrate that the frequency and frequency range of surface Bloch waves existence can be tuned by varying the Fermi energy of graph...

2014
I-Wen Peter Chen Chun-Yuan Huang Sheng-Hong Saint Jhou Yu-Wei Zhang

Single-layered graphene has unique electronic, chemical, and electromechanical properties. Recently, graphite exfoliation in N-methylpyrrolidone and molten salt has been demonstrated to generate monolayer exfoliated graphene sheets (EGS). However, these solvents are either high-priced or require special care and have high boiling points and viscosities, making it difficult to deposit the disper...

A. Tourki Samaei, Sh. Hosseini Hashemi

This paper proposed analytical solutions for the buckling analysis of rectangular single-layered graphene sheets under in-plane loading on all edges simply is supported. The characteristic equations of the graphene sheets are derived and the analysis formula is based on the nonlocal Mindlin plate. This theory is considering both the small length scale effects and transverse shear deformation ef...

A. Tourki Samaei, Sh. Hosseini Hashemi

This paper proposed analytical solutions for the buckling analysis of rectangular single-layered graphene sheets under in-plane loading on all edges simply is supported. The characteristic equations of the graphene sheets are derived and the analysis formula is based on the nonlocal Mindlin plate. This theory is considering both the small length scale effects and transverse shear deformation ef...

2013
Yi Shen Aik Chong Lua

This study reports on a facile and economical method for the scalable continuous synthesis of graphene sheets by the thermocatalytic decomposition of methane using a unique and novel unsupported catalyst of iron particles. Single-layered and few-layered graphene sheets were continuously synthesized by the isothermal decomposition reaction of methane over a catalyst of iron particles under atmos...

Journal: :Nanoscale 2016
Qile Fang Xufeng Zhou Wei Deng Zhaoping Liu

A novel layered graphene-based architecture is achieved via an ordered self-assembly process. Amphipathic graphene nanosheets are joined horizontally into large sheets via edge splicing, and a cross-linking agent of poly(vinyl alcohol) bridges them into integrated three-dimensional monoliths with tunable interlayer spacing. This layered architecture possesses highly ordered and favorable microc...

2016
Ahmad Amiri Mehdi Shanbedi Goodarz Ahmadi Hossein Eshghi S. N. Kazi B. T. Chew Maryam Savari Mohd Nashrul Mohd Zubir

This study reports on a facile and economical method for the scalable synthesis of few-layered graphene sheets by the microwave-assisted functionalization. Herein, single-layered and few-layered graphene sheets were produced by dispersion and exfoliation of functionalized graphite in ethylene glycol. Thermal treatment was used to prepare pure graphene without functional groups, and the pure gra...

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