نتایج جستجو برای: 3d graphene

تعداد نتایج: 237717  

2014
Jungkyu Park Vikas Prakash Naoki Kishi

In the present study, reverse nonequilibrium molecular dynamics is employed to study thermal resistance across interfaces comprising dimensionally mismatched junctions of single layer graphene floors with (6,6) single-walled carbon nanotube (SWCNT) pillars in 3D carbon nanomaterials. Results obtained from unit cell analysis indicate the presence of notable interfacial thermal resistance in the ...

Journal: :Physical review research 2023

High mechanical load on bilayer graphene causes intermittent covalent bonds between the layers. This transition from 2D to 3D bonding extends a sliding silica tip and limits extraordinary lubrication offered by material graphene.

2018
Jinjin Li Tianyang Gao Jianbin Luo

2D or 3D layered materials, such as graphene, graphite, and molybdenum disulfide, usually exhibit superlubricity properties when sliding occurs between the incommensurate interface lattices. This study reports the superlubricity between graphite and silica under ambient conditions, induced by the formation of multiple transferred graphene nanoflakes on the asperities of silica surfaces after th...

Journal: :The Analyst 2014
Xiaowen Yu Kaixuan Sheng Gaoquan Shi

Electrochemical detection of dopamine plays an important role in medical diagnosis. In this paper, we report a three-dimensional (3D) interpenetrating graphene electrode fabricated by electrochemical reduction of graphene oxide for selective detection of dopamine. This electrochemically reduced graphene oxide (ErGO) electrode was used directly without further functionalization or blending with ...

Journal: :journal of ultrafine grained and nanostructured materials 0
reza ansari department of mechanical engineering, university of guilan, p.o.box 3756, rasht, iran. shahram ajori department of mechanical engineering, university of guilan, p.o.box 3756, rasht, iran. sina malakpour department of mechanical engineering, university of guilan, p.o.box 3756, rasht, iran.

importance of covalent bonded two-dimensional monolayer nanostructures and also hydrocarbons is undeniably responsible for creation of new fascinating materials like polyphenylene polymer, a hydrocarbon super honeycomb network, so-called porous graphene. the mechanical properties of porous graphene such as its young’s modulus, poisson’s ratio and the bulk modulus as the determinative properties...

2016
Moumita Kotal Jaehwan Kim Junghwan Oh Il-Kwon Oh

Two dimensional (2D) graphene has become one of the most intensively explored carbon allotropes in materials science owing to attractive features like its outstanding physicochemical properties. In order to further practical applications, the fabrication of self-assembled 2D individual graphene sheets into 3D graphene aerogels (GAs) with special structures and novel functions is now becoming es...

2015
Jana Vlachova Katerina Tmejova Pavel Kopel Maria Korabik Jan Zitka David Hynek Jindrich Kynicky Vojtech Adam René Kizek

Modification of carbon materials, especially graphene-based materials, has wide applications in electrochemical detection such as electrochemical lab-on-chip devices. A glassy carbon electrode (GCE) modified with chemically alternated graphene oxide was used as a working electrode (glassy carbon modified by graphene oxide with sulphur containing compounds and Nafion) for detection of nucleobase...

Journal: :Angewandte Chemie 2014
Ping Du Maud Jaouen Amandine Bocheux Cyril Bourgogne Zheng Han Vincent Bouchiat David Kreher Fabrice Mathevet Céline Fiorini-Debuisschert Fabrice Charra André-Jean Attias

A general strategy for simultaneously generating surface-based supramolecular architectures on flat sp(2) -hybridized carbon supports and independently exposing on demand off-plane functionality with controlled lateral order is highly desirable for the noncovalent functionalization of graphene. Here, we address this issue by providing a versatile molecular platform based on a library of new 3D ...

Journal: :Nanoscale 2015
Yangsu Xie Zaoli Xu Shen Xu Zhe Cheng Nastaran Hashemi Cheng Deng Xinwei Wang

Due to its intriguing thermal and electrical properties, graphene has been widely studied for potential applications in sensor and energy devices. However, the reported value for its thermal conductivity spans from dozens to thousands of W m(-1) K(-1) due to different levels of alternations and defects in graphene samples. In this work, the thermal diffusivity of suspended four-layered graphene...

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