نتایج جستجو برای: carbon nano tubes

تعداد نتایج: 353314  

Journal: :Physical review letters 2009
H Shiozawa T Pichler C Kramberger M Rümmeli D Batchelor Z Liu K Suenaga H Kataura S R P Silva

The excitement of nano-test-tube chemistry in a single-walled carbon nanotube is exemplified in our study on electron doping in carbon nanotubes. Electron doping through the 1D van Hove singularity of single-walled carbon nanotubes is realized via a chemical reaction of an encapsulated organocerium compound, CeCp3. The decomposition of CeCp3 inside the carbon nanotubes increases the doping leve...

2014
Mohamed Nassar Maher Z. Elsabee

Hydrized derivatives of phenylene diamine were reacted with aromatic diacid chloride to give wholly aromatic polyamide/hydrazide compounds with much better solubility in organic solvents thus improving their pressesability. Carbon nano-tubes were used as fillers to enhance their thermal and mechanical properties. The polymers as well as the composite were characterized by spectral and mechanica...

Journal: :International Journal of Lightweight Materials and Manufacture 2021

2006

Tim Hoogenboom Birkholm 34 Hoofddorp +31614576051 [email protected] 0436267 Informatiekunde ii How Building a Pyramid in Tokyo Bay and Bridging User Communities Relate to Each Other. I magine a three-dimensional city that is twelve times higher that the Great Pyramid of Giza in Egypt. It is the largest structure on the world and it floats over Tokyo Bay while being build largely by robots. It ...

B. Zahed H. Ateshi T. Fanaei S.

The growth rate and uniformity of Carbon Nano Tubes (CNTs) based on Chemical Vapor Deposition (CVD) technique is investigated by using a numerical model. In this reactor, inlet gas mixture, including xylene as carbon source and mixture of argon and hydrogen as  carrier gas enters into a horizontal CVD reactor at atmospheric pressure. Based on the gas phase and surface reactions, released carbon...

Journal: :Journal of Soil and Groundwater Environment 2013

Journal: :World Journal of Nano Science and Engineering 2020

Journal: :mechanics of advanced composite structures‎ 2014
abbas niknejad iman kharaman-nia

this paper investigates axial compression process of multi-layered tubes with circular cross-section under the axial loading in the quasi-static condition using experimental method. some specimens are prepared in seven different groups, namely; empty carbon/epoxy composite tubes, solid carbon/epoxy composite rods, empty copper tubes, composite tubes with silicon sealant filler, concentrically s...

2016
Maryam Khazaee Wei Xia Gerhard Lackner Rafael G. Mendes Mark Rümmeli Martin Muhler Doru C. Lupascu

The synthesis and characterization of gas phase oxygen- and nitrogen-functionalized multi-walled carbon nanotubes (OMWCNTs and NMWCNTs) and the dispersibility of these tubes in organic solvents were investigated. Recently, carbon nanotubes have shown supreme capacity to effectively enhance the efficiency of organic solar cells (OSCs). A critical challenge is to individualize tubes from their bu...

2005
H Cai

Based on Timoshenko laminated beam models, this paper investigates the influence of initial stress on the vibration and transverse wave propagation in individual multi-wall carbon nanotubes (MWNTs) under ultrahigh frequency (above 1 THz), in which the initial stress in the MWNTs can occur due to thermal or lattice mismatch between different materials. Considering van der Waals force interaction...

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