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Surface nitrile group functionalized multi-walled carbon nanotubes supported Pt nanocomposites were prepared by the reduction of hexachloroplatinate acid in glycol solution suspended surface functionalized multi-walled carbon nanotubes. Average particle sizes of Pt nanoparticles were estimated by XRD method and TEM micrographs. The data show narrow distribution of the particle size of the Pt nanoparticles...
We have explored the effect of Au-nanoparticle (NP)-induced surface plasmons on the performance of polymer-fullerene photovoltaic devices utilizing single-walled carbon-nanotube (SWNT) films as the transparent electrode for hole collection. The Au NPs were produced by ultrafast laser ablation in liquids and were incorporated on the devices in a SWNT/poly(3,4-ethylene-dioxythiophene):poly(4-styrenesulfonate)/NP/poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric...
We report preparation and characterization of novel nanocomposite electrodes consisting of single-walled carbon nanotubes (SWNT) and polypyrrole (PPy) for electrochemical supercapacitors. The electrodes in the form of papers and fibers were prepared by i) vacuum filtration of SWNT/PPy methanol dispersion and ii) wet-spinning of SWNT/PPy aqueous dispersion, respectively. Electrochemical properties...
Polyamide12 (PA12)/multiwalled nanotubes (MWNT) composites were characterized in terms of complex permittivity and conductivity. Measurements were achieved on a LCR meter in a frequency range between 102 and 106 Hz. Samples were placed between plate-plate geometry electrodes and heated at temperature higher than melt temperature. Electrical and dielectric properties show different behaviours depending...
Graphene is currently one of the hottest materials, its excellent electrical conductivity and its thin flexible two-dimensional feature make it a superior component for nanocomposite materials, for example being a transparent window electrode for dye-sensitized solar cells. However, one of the biggest obstacles to graphene research is to obtain single-layer graphene in large quantity. We reported...
An electronic nose (e-nose) system based on polymer/carboxylic-functionalized single-walled carbon nanotubes (SWNTs-COOH) was developed for sensing various volatile amines such as dimethylamine, dipropylamine, pyridine, and ammonia solution. The SWNTs-COOH were dispersed in the matrix of different polymers; polyvinyl chloride (PVC), cumene terminated polystyrene-co-maleic anhydride (cumene-PSMA),...
We report about the fabrication method of CNT-conducting polymer composite nanowire array applicable to chemical sensors using a single-step electropolymerized between electrodes. The method is free from some limitations such as complicated process of post-synthesis nanowire manipulation or nano-patterning process for templates that traditional methods have. It is possible to fabricate arrays of individually...
A nanocomposite of functionalized 2.5 wt.% carboxylated multiwalled carbon nanotubes (MWCNTs) /polyaniline (PANi) is synthesized using in situ chemical polymerization method. MWCNT is coated by using in-situ chemical polymerization of Polyaniline polymer. Structure and morphology of nanocomposite is characterized, using X-ray diffraction pattern (XRD), scanning electron microscopy (SEM) and transmission...
Both carbon nanotubes (CNTs) and polypyrrole (PPy) have been investigated as materials for manufacturing high charge-transfer electrodes due to their outstanding performances. In this work, PPy and chemically-functionalized multi-walled CNTs (COOH-MWCNTs) and single-walled CNTs (COOH-SWCNTs) were electrodeposited from an aqueous solution to form a nanocomposite on the surface of platinum metal electrodes...
Kraft lignin (KL) was adsorbed on multi-wall carbon nanotubes (MWCNTs). After dispersing in dimethylsulfoxide the biopolymer coated MWCNTs formed stable suspensions that could be used to form cast films on glassy carbon electrodes. The composite films after initial oxidation showed redox functions characteristic of quinone moieties. These could be further reacted with thionine (TH) to form a redox...
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