نتایج جستجو برای: carbon nanotube sensor

تعداد نتایج: 467532  

Journal: :international journal of nano dimension 0
z. abdi department of chemistry, shahr-e-qods branch, islamic azad university, tehran, iran s. sedaghat department of chemistry, shahr-e-qods branch, islamic azad university, tehran, iran

in this work the synthesis of polyaniline/chitosan/functionalized single- walled carbon nanotube nanocomposite is carried out. for this purpose single -walled carbon nanotubes were reacted with thionyl chloride to change the hydroxyl to acyl chloride groups for improving the react ability. in other step, aniline monomers and chitosan were polymerized in the presence of iron (iii) chloride to sy...

2015
Sathish Reddy Ran Du Hua Xu Juanxia Wu Nannan Mao Jin Zhang

An efficient multi-walled carbon nanotube/gold colloidal nanoparticle paste electrode (MWCNTs/ Au Nps PE) was prepared for detection of hydrazine in the presence of pyrogallol red as a mediator in the homogenous solution. The prepared MWCNTs/ Au Nps PE and multi-walled carbon nanotube paste electrode (MWCNTs PE) were characterized by Raman spectroscopy, scanning electron microscopy and cyclic v...

This paper presents the design and fabrication of proximity coupled feed disk resonator coated with Multi Walled Carbon Nanotubes (MWCNTs) and Polypyrrole-Chitosan (PPy-CHI) layers as a napropamide sensor. Computer Simulation Technology (CST) microwave studio was used to obtain the best design of disk resonator and feed line position in 5 GHz resonant frequency. Also, MWCNTs - PPy-CHI layers we...

2015
Peng Zhou Xiao Yang Liang He Zhimeng Hao Wen Luo Biao Xiong Xu Xu Chaojiang Niu Mengyu Yan Liqiang Mai

Articles you may be interested in An arbitrary strains carbon nanotube composite piezoresistivity model for finite element integration Appl. Young's modulus measurement of two-photon polymerized micro-cantilevers by using nanoindentation equipment J. Effect of filament aspect ratio on the dielectric response of multiwalled carbon nanotube composites Electromagnetic wave propagation in dense car...

2010
Haw-Long Lee Jung-Chang Hsu Win-Jin Chang

The frequency equation of carbon-nanotube-based cantilever sensor with an attached mass is derived analytically using nonlocal elasticity theory. According to the equation, the relationship between the frequency shift of the sensor and the attached mass can be obtained. When the nonlocal effect is not taken into account, the variation of frequency shift with the attached mass on the sensor is c...

The epoxy coatings containing multi-walled carbon nanotube/ poly ortho aminophenol nanocomposite were prepared and used as anticorrosive coatings. The nanocomposites with different contents of carbon nanotube were synthesized in a solution of sodium dodecyl sulfate and ammonium peroxy disulfate as a surfactant and an oxidant, respectively. The morphology and structural properties were confirmed...

1999
Brett A. Warneke

The Smart Dust project aims to explore the limits of system integration by packing an autonomous sensing, computing, and communication node into a cubic millimeter mote that will form the basis of massive distributed sensor networks, thus demonstrating that a complete system can be integrated into 1 mm3. Effectively exploring this space requires new approaches to design that emphasize energy an...

Journal: :Physical review letters 2005
S Jakobtorweihen M G Verbeek C P Lowe F J Keil B Smit

The influence of flexible walls on the self-diffusion of CH4 in an isolated single walled carbon nanotube, as an example, is studied by molecular dynamics simulations. By simulating the carbon nanotube as a flexible framework we demonstrate that the flexibility has a crucial influence on self-diffusion at low loadings. We show how this influence can be incorporated in a simulation of a rigid na...

2013
Lich Quang Nguyen Pho Quoc Phan Huyen Ngoc Duong Chien Duc Nguyen Lam Huu Nguyen

Multi-walled carbon nanotube (MWCNT) film has been fabricated onto Pt-patterned alumina substrates using the chemical vapor deposition method for NH(3) gas sensing applications. The MWCNT-based sensor is sensitive to NH(3) gas at room temperature. Nanoclusters of Co catalysts have been sputtered on the surface of the MWCNT film to enhance gas sensitivity with respect to unfunctionalized CNT fil...

2010
Yohei ITO Taku HIGUCHI Koji TAKAHASHI

A submicroscale flow sensor has been developed that consists of a suspended hot film and carbon nanotube (CNT) fins. Flow measurement experiments, together with a theoretical model, revealed the advantages of the use of CNT fins. The suspended metal film reduces heat loss and the CNT fins enhance the heat transfer to the fluid flow. Herein, the working principle of the CNT fins is presented in ...

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