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Author: search.filters.author.Afzulpurkar, NitinSubject: search.filters.subject.Membrane

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    Synthesis of carbon nanotube and carbon nanofiber in nanopore of anodic aluminum oxide template by chemical vapor deposition at atmospheric pressure
    (2012-10-15)
    Kasi, Jafar Khan
    ;
    Kasi, Ajab Khan
    ;
    Wongwiriyapan, Winadda
    ;
    Afzulpurkar, Nitin
    ;
    Dulyaseree, Paweena
    Carbon nanotube (CNT) is one of the most attractive materials for the potential applications of nanotechnology due to its excellent mechanical, thermal, electrical and optical properties. We demonstrated the fabrication of carbon nanotube and carbon nanofiber (CNF) inside the pore and at the surface of anodic aluminum oxide (AAO) membrane by chemical vapor deposition method at atmospheric pressure. Ethanol was used as a hydrocarbon source and Co-Mo as catalyst. CNT was synthesized at different temperature. High graphitic multiwall carbon nanotube (MWCNT) was found at 750°C, while CNF was found at 800oC and above temperature analyzing by Raman spectroscopy. © (2012) Trans Tech Publications, switzerland.
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    Fabrications of three dimensional anodic aluminum oxide micro shapes
    (2012-05-01)
    Kasi, Jafar Khan
    ;
    Kasi, Ajab Khan
    ;
    Afzulpurkar, Nitin
    ;
    Hasan, Mahadi
    ;
    Pratontep, Sirapat
    Anodic aluminum oxide (AAO) is one of attractive materials which are used for the fabrication of micro and nanostructures. This paper describes the fabrication of three dimensional (3D) microstructures with AAO nano porous membrane. A simple procedure has been adopted to develop microstructures using the same aluminum (Al) sample without any assistance of scaffold or molding process. Various shapes including micro conical tube, micro cone, and micro bowl structures have been fabricated. Those factors have also been analyzed which are affecting the shapes of microstructures like cracks, angle, and geometry. The fabricated 3D shapes have potential applications in drug delivery system. © 2012 American Scientific Publishers.