نتایج جستجو برای: multiwall carbon nanotube

تعداد نتایج: 284035  

2012
Fathali Gholami-Orimi Farshad Taleshi Pourya Biparva Hassan Karimi-Maleh Hadi Beitollahi Hamid R. Ebrahimi Mohamad Shamshiri Hasan Bagheri Masoud Fouladgar Ali Taherkhani

We propose chlorpromazine (CHP) as a new mediator for the rapid, sensitive, and highly selective voltammetric determination of homocysteine (Hcy) using multiwall carbon nanotube paste electrode (MWCNTPE). The experimental results showed that the carbon nanotube paste electrode has a highly electrocatalytic activity for the oxidation of Hcy in the presence of CHP as a mediator. Cyclic voltammetr...

Journal: :The journal of physical chemistry. B 2005
Christian Klinke Erik Delvigne Johannes V Barth Klaus Kern

We have studied nickel, gold, and ferritin coatings on catalytically grown multiwall carbon nanotubes as well as the generation of secondary nanotubes by resubmitting the decorated nanotubes to the chemical vapor deposition process. Nickel layers sputtered on nanotubes show a stronger interaction with the nanotube walls than gold coatings. At ambient temperature this results in a metal film tha...

Journal: Journal of Nanoanalysis 2014

The separations of alcohols with hydrophilic and hydrophobic parts, and the separation of aromatic mixtures, are extremely important processes in gas and petroleum industries. Choosing an adsorbent for performing this separation is the most important part of the process. Silica gel is used as an adsorbent is various techniques such as pressure swing adsorption (PSA) and gas and liquid chromatog...

2011
John Cumings David Goldhaber-Gordon A. Zettl M. R. McCartney J. C. H. Spence

A transmission electron microscope (TEM) is much more than just a tool for imaging the static state of materials. To demonstrate this, we present work on studying the mechanical and electrical properties of carbon nanotube devices. Multiwall carbon nanotubes are concentrically stacked tubular sheets of graphite, where the spacing between each cylinder is simply the natural spacing of graphite. ...

2008
Raghunandan Seelaboyina Wonbong Choi

In this work, we report the synthesis and field emission properties of carbon nanotube multistage emitter arrays, which were grown on porous silicon by catalytic thermal chemical vapor deposition. The emitter structure consisted of arrays of multiwall nanotubes (MWNTs) on which single/thin-multiwall nanotubes were grown. The structure was confirmed by TEM and Raman analysis. Higher field emissi...

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