نتایج جستجو برای: Multiwall Carbon Nanotube

تعداد نتایج: 284035  

2005
L. E. Murr K. M. Garza K. F. Soto A. Carrasco T. G. Powell D. A. Ramirez P. A. Guerrero D. A. Lopez J. Venzor

Nanotechnology and nanomaterials have become the new frontier world-wide over the past few years and prospects for the production and novel uses of large quantities of carbon nanotubes in particular are becoming an increasing reality. Correspondingly, the potential health risks for these and other nanoparticulate materials have been of considerable concern. Toxicological studies, while sparse, ...

2012
C. Lekakou O. Moudam F. Markoulidis T. Andrews J. F. Watts G. T. Reed

This paper investigates electrochemical double layer capacitors (EDLCs) including two alternative types of carbon-based fibrous electrodes, a carbon fibre woven fabric (CWF) and a multiwall carbon nanotube (CNT) electrode, as well as hybrid CWFCNT electrodes. Two types of separator membranes were also considered. An organic gel electrolyte PEO-LiCIO4-EC-THF was used to maintain a high working v...

Journal: :Journal of the American Chemical Society 2002
Fiona Frehill Johannes G Vos Sakina Benrezzak Antal A Koós Zoltan Kónya Manuel G Rüther Werner J Blau Antonio Fonseca Janos B Nagy Laszlo P Biró Andrew I Minett Marc In Het Panhuis

Intermolecular carbon nanotube junctions were formed through amide linkage of amino functionalized multiwall carbon nanotubes and [Ru (dcbpy)(bpy)2](PF6)2, an inorganic metal complex. Nanotube interconnects were visualized using atomic force microscopy. Absorption and emission spectroscopy showed significant changes between starting products and the resulting ruthenium nanotube complex, indicat...

Journal: :Optics letters 2009
Ranjith R Haider Butt Timothy D Wilkinson

The carbon nanotube-liquid-crystal (CNT-LC) nanophotonic device is a class of device based on the hybrid combination of a sparse array of multiwall carbon nanotube electrodes grown on a silicon surface in a liquid-crystal cell. The multiwall carbon nanotubes act as individual electrode sites that spawn an electric-field profile, dictating the refractive index profile within the liquid crystal a...

2015
Jafar Khan Kasi Ajab Khan Kasi

Carbon nanotube is one of the most attractive materials for the potential applications of nanotechnology due to its excellent mechanical, thermal, electrical and optical properties. In this paper we report a supercapacitor made of nickel foil electrodes, coated with multiwall carbon nanotubes (MWCNTs) thin film using electrophoretic deposition (EPD) method. Chemical vapor deposition method was ...

2005
R. C. Smith J. D. Carey R. J. Murphy W. J. Blau J. N. Coleman S. R. P. Silva

Electron field emission measurements have been made on multiwall arc discharge carbon nanotubes embedded in a conjugated polymer host. Electron emission at low nanotube content is observed and attributed to an enhancement of the applied electric field at the polymer/nanotube/vacuum interface where the electron supply through the film is attributed to fluctuation induced tunneling in a disordere...

Journal: :international journal of nanoscience and nanotechnology 2012
m. kolangikhah m. maghrebi k. ghazvini n. farhadian

in this study, salmonella typhimurium bacteria removal from polluted water has been investigated using multiwall carbon nanotubes arrays. experimental results reveal that the contact time, the bacterial concentration and the weight of multiwall carbon nanotubes arrays have positive significant effects on the bacteria removal efficiency. increasing the contact time and the weight of multiwall ca...

Journal: :Journal of the American Chemical Society 2009
Stephen A Steiner Theodore F Baumann Bernhard C Bayer Raoul Blume Marcus A Worsley Warren J MoberlyChan Elisabeth L Shaw Robert Schlögl A John Hart Stephan Hofmann Brian L Wardle

We report that nanoparticulate zirconia (ZrO(2)) catalyzes both growth of single-wall and multiwall carbon nanotubes (CNTs) by thermal chemical vapor deposition (CVD) and graphitization of solid amorphous carbon. We observe that silica-, silicon nitride-, and alumina-supported zirconia on silicon nucleates single- and multiwall carbon nanotubes upon exposure to hydrocarbons at moderate temperat...

2016
Rajib Ahmed Ahmmed A. Rifat Ali K. Yetisen Qing Dai Seok Hyun Yun Haider Butt

Metamaterial high pass filter based on periodic wire arrays of multiwalled carbon nanotubes Appl. Experimental demonstration of the slow group velocity of light in two-dimensional coupled photonic crystal microcavity arrays Appl. Free-standing porous silicon single and multiple optical cavities Periodic highly dense multi-wall carbon nanotube (MWCNT) arrays can act as photonic materials exhibit...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2004
Lingyan Jiang Chuanyin Liu Liping Jiang Zhen Peng Guanghan Lu

A chemically modified electrode based on a chitosan-multiwall carbon nanotube (MWNT) coated glassy carbon electrode (GCE) is described, which exhibits an attractive ability to determine dopamine (DA) and ascorbic acid (AA) simultaneously. The modified electrode exhibited a high differential pulse voltammetry (DPV) current response to DA at 0.144 V and AA at -0.029 V (vs. SCE) in a 0.1 mol l(-1)...

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