Efficient synthesis of carbon nanotubes with improved surface area by low-temperature solvothermal route from dichlorobenzene
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Gantigaiah Krishnamurthy
und
Sarika Agarwal
Abstract
The synthesis of well-aggregated carbon nanotubes in the form of bundles was achieved by the catalytic reduction of 1,2-dichlorobenzene by a solvothermal approach. The use of 1,2-dichlorobenzene as a carbon source yielded a comparably good percentage of carbon nanotubes in the range of 60–70 %, at a low reaction temperature of 200°C. The products obtained were analysed by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy techniques. The X-ray diffraction studies implied the presence of pure, crystalline, and well-ordered carbon nanotubes. The scanning electron and transmission electron microscopic images revealed the surface morphology, dimensions and the bundled form of the tubes. These micrographs showed the presence of multi-walled carbon nanotubes with an outer diameter of 30–55 nm, inner diameter of 15–30 nm, and lengths of several hundreds of nanometers. Brunauer-Emmett-Teller-based N2 gas adsorption studies were performed to determine the surface area and pore volume of the carbon nanotubes. These carbon nanotubes exhibit a better surface area of 385.30 m2 g−1. In addition, the effects of heating temperature, heating time, amount of catalyst and amount of carbon source on the product yield were investigated.
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© 2013 Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- A comparative study on direct production of ethyl levulinate from glucose in ethanol media catalysed by different acid catalysts
- Model-based sensitivity analysis of a fluidised-bed bioreactor for mercury uptake by immobilised Pseudomonas putida cells
- Variability of total and mobile element contents in ash derived from biomass combustion
- Pigmentary properties of rutile TiO2 modified with cerium, phosphorus, potassium, and aluminium
- Efficient synthesis of carbon nanotubes with improved surface area by low-temperature solvothermal route from dichlorobenzene
- Surface modification of quantum dots and magnetic nanoparticles with PEG-conjugated chitosan derivatives for biological applications
- Comparative study of particle size analysis of hydroxyapatite-based nanomaterials
- Synthesis of cinnamic acid-derived 4,5-dihydrooxazoles
- Thermodynamic properties of dimethyl phthalate + vinyl acetate, diethyl phthalate + vinyl acetate or bromocyclohexane, and dibutyl phthalate + vinyl acetate or 1,2-dichlorobenzene at T = 298.15–308.15 K
- Temperature-dependent volumetric and viscometric properties of amino acids in aqueous solutions of an antibiotic drug
- DFT study of free radical scavenging activity of erodiol
- QSAR study of amidino bis-benzimidazole derivatives as potent anti-malarial agents against Plasmodium falciparum
- Alternative two-step route to khellactone analogues using silica tungstic acid and sodium hydrogen phosphate
