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مقالات شیمیایی 2013
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • efficient synthesis of carbon nanotubes with improved surface area by low-temperature solvothermal route from dichlorobenzene

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 951
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     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 m2g−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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