فهرست مقالات Amir Bayat


  • مقاله

    1 - Investigation of hydrothermal process time on the size of carbon micro- and nano-spheres
    Journal of Optoelectronical Nanostructures , شماره 2 , سال 2 , تابستان 2017
    In this study, carbon nano-micro spheres with tightly controllable size, regular
    and perfect shape, high yields and narrow size distribution were prepared simply from
    glucose and DI water as precursors using a hydrothermal method. By setting چکیده کامل
    In this study, carbon nano-micro spheres with tightly controllable size, regular
    and perfect shape, high yields and narrow size distribution were prepared simply from
    glucose and DI water as precursors using a hydrothermal method. By setting the initial
    concentration of glucose solution and changing the hydrothermal process time at a
    constant temperature of 160 °C, carbon spheres with various sizes were synthesized in a
    sealed autoclave. The relationship between the average carbon sphere size and
    hydrothermal process time has been discussed. By increasing the hydrothermal process time
    at a constant temperature (160 ° C) and a constant concentration of glucose solution (0.75 molar),
    carbon nano-micro spheres were obtained. The diameters of carbon nano-micro spheres
    synthesized in this study ranged from 90 nm to 4.5 μm. The obtained carbon nano-micro
    spheres were analyzed by different techniques including scanning electron microscopy
    (SEM), X-ray diffraction patterns (XRD), energy dispersive spectrometry (EDS) and
    Raman analysis. In addition, the existence of surface functional groups on carbon
    nano/micro spheres was characterized by Fourier transform infrared (FTIR)
    measurements.


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