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Within the field of nanotechnology, nano-scale composites have significant potential in the development of advanced materials for functional applications. Here, composites based on carbon nanotubes and titanium dioxides have been prepared…

材料科学 · 物理学 2016-10-11 Rongkai Li , Dongping Chen , Xinling Hu , Yanzhen Huang , Jing Lu , Dongxu Li

Growth of carbon nanotubes (CNTs) was performed by atmospheric pressure chemical vapour deposition (APCVD) of propane on Si(111) with a pre-treated Ni overlayer acting as a catalyst. Prior to the growth of CNTs, a thin film of Ni was…

材料科学 · 物理学 2019-06-04 J Sengupta , SK Panda , C Jacob

A high temperature for some catalytic reactions like synthesis of large area and high quality graphene is required. The mentioned graphene can be obtained by a chemical vapour deposition (CVD) process on copper foil at 800 1000. Here, we…

材料科学 · 物理学 2016-08-15 Morteza Hajian , Mehdi Zareie , Davood Hashemian , Mohammad bahrami

We investigate the growth of the recently demonstrated composite material composed of vertically aligned carbon nanotubes capped by few graphene layers. We show that the carbon nanotubes grow epitaxially under the few graphene layers. By…

材料科学 · 物理学 2011-03-24 V. Jousseaume , J. Cuzzocrea , N. Bernier , Vincent Thomas Francois Renard

Carbon nanotubes play a fundamental role in the rapidly developing field of nanoscience and nanotechnology because of their unique properties and high potential applictions. In this article, the different synthesis method of CNTs are…

材料科学 · 物理学 2007-05-23 Kalpana Awasthi , Anchal Srivastava , O. N. Srivastava

Coatings comprised of carbon nanotubes are very black; that is, characterized by low reflectance over a broad wavelength range from the visible to far infrared. Arguably there is no other material that is comparable. This is attributable to…

应用物理 · 物理学 2017-10-04 J. Lehman , C. Yung , N. Tomlin , D. Conklin , M. Stephens

Nitrogen doped single wall carbon nanotubes have many functional benefits. Doping opens the possibility to control the electronic energy levels, surface energy, surface reactivity and charge carrier density. The additional electron in the…

材料科学 · 物理学 2021-02-01 Filippo Fedi , Oleg Domanov , Paola Ayala , Thomas Pichler

Graphene nanoribbons are prepared inside boron nitride nanotubes by liquid phase encapsulation and subsequent annealing of 1,2,4-trichlorobenzene. The product is imaged with high resolution transmission electron microscopy, and…

The formation of graphen-nanotube composites addresses a few basic problems. First, both partners are good donors and acceptors of electrons, which significantly complicates the intermolecular interaction between them leading to a two-well…

材料科学 · 物理学 2009-01-26 Elena F. Sheka , Leonid A. Chernozatonskii

Recent years witnessed a rapid growth of interest of scientific and engineering communities to thermal properties of materials. Carbon allotropes and derivatives occupy a unique place in terms of their ability to conduct heat. The…

材料科学 · 物理学 2015-05-28 Alexander A. Balandin

Graphene ranks highly as a possible material for future high-speed and flexible electronics. Current fabrication routes, which rely on metal substrates, require post synthesis transfer of the graphene onto a Si wafer or in the case of…

The work here has demonstrated the use a simple microwave plasma process for welding carbon nanotubes onto solid surfaces such as plastics and glasses, it was found that due to the lower softening point and viscosity of polystyrene…

材料科学 · 物理学 2015-12-02 Pejman Talemi , George Simon

The experiment was conducted to synthesize carbon nanospheres of different sizes by controlling the temperature in polycondensation reaction of glucose under hydrothermal process. The surface morphology, structural, optical, and thermal…

材料科学 · 物理学 2017-06-20 Priya Karna , Sunil Karna

Over the past 20 years, nanocarbons have become more significant as nanostructured fillers in composites and, more recently, as functional elements in a brand-new class of hybrid materials. Microwave-assisted synthesis and processing is a…

材料科学 · 物理学 2025-01-22 Nagaraj Nandihalli

Using carbon nanotubes (CNTs) produced by chemical vapor deposition, we have explored different strategies for the preparation of carbon nanotube devices suited for electrical and mechanical measurements. Though the target device is a…

介观与纳米尺度物理 · 物理学 2009-11-10 B. Babic , J. Furer , M. Iqbal , C. Schonenberger

Graphene and carbon nanotubes (CNTs) share the same atomic structure of hexagonal carbon lattice. Yet, their synthesis differs in many aspects, including the shape and size of the catalyst. Here, we demonstrate a floating-catalyst chemical…

An overview is presented of the various phases predicted to occur when gases are absorbed within a bundle of carbon nanotubes. The behavior may be characterized by an effective dimensionality, which depends on the species and the…

软凝聚态物质 · 物理学 2007-05-23 M. Mercedes Calbi , Milton W. Cole , Silvina M. Gatica , Mary J. Bojan , George Stan

Combining equilibrium and non-equilibrium molecular dynamics simulations with accurate carbon potentials, we determine the thermal conductivity $\lambda$ of carbon nanotubes and its dependence on temperature. Our results suggest an…

材料科学 · 物理学 2009-10-31 Savas Berber , Young-Kyun Kwon , David Tomanek

Patterned films of decorated nitrogenated carbon (C-N) nanotubes were catalytically synthesised by hot filament chemical vapour deposition (HF-CVD) in a nitrogen-methane-ammonia environment. The systematic study of a transition between…

材料科学 · 物理学 2015-07-20 Ralph Kurt , Christian Klinke , Jean-Marc Bonard , Klaus Kern , Ayatollah Karimi

The unique topology and exceptional properties of carbon nanoscrolls (CNSs) have inspired unconventional nano-device concepts, yet the fabrication of CNSs remains rather challenging. Using molecular dynamics simulations, we demonstrate the…

介观与纳米尺度物理 · 物理学 2011-11-21 Zhao Zhang , Teng Li
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