Abstract In the present study, we produced SiO x /C from rice husk by NaCl sub‐micron crystal‐assisted synthesis method which can mitigate environmental degradation and hazards, simplify preparation, improve electrochemical performance. During synthesis, induces catalytic graphitization, carbon activation, amorphous silica formation. Moreover, it is only partially consumed be recrystallized reu...

Submitted to the NANOTUBE'04 Conference: Molecular dynamics study of catalytic ability of transition metals in nucleation process of SWNTs Yasushi Shibuta and Shigeo Maruyama Dept. of Mech. Eng. The University of Tokyo Contact e-mail: [email protected] Interaction between catalytic metals and carbon atoms on formation process of SWNTs are studied by the home-made multi-body potenti...

a novel sulfur nanocomposite was fabricated based on graphitic mesoporous carbon.the graphitic mesoporous carbon was synthesized using sucrose as carbon precursor, nano caco3 as hard template and nickel nitrate as graphitization catalyst. the structural properties of the prepared material were characterized using powder x-ray diffraction (xrd), n2-adsorption/desorption and scanning electron mic...

Surface chemistry involved in the epitaxy of graphene by sublimating Si atoms from the surface of epitaxial 3C-SiC(111) thin films on Si(111) has been studied. The change in the surface composition during graphene epitaxy is monitored by in situ temperature-programmed desorption spectroscopy using deuterium as a probe (D(2)-TPD) and complementarily by ex situ Raman and C1s core-level spectrosco...

Ab initio total energy calculations reported recently (M.I. Heggie, C.D. Latham, R. Jones and P.R. Briddon, Phys. Rev. B, 50 (1994) 5937) revealed that the tetrahedrally bonded icosahedral C100 molecule spontaneously decomposed into two concentric fullerenes (C20 and C80). This C100 molecule belongs to a series of structures that may be viewed as the diamond analogues of fullerenes (L. Zeger an...

We studied the thermally induced phase transformations of electron-beam-induced deposited (EBID) amorphous carbon nanostructures by correlating the changes in its morphology with internal microstructure by using combined atomic force microscopy (AFM) and high resolution confocal Raman microscopy. These carbon deposits can be used to create heterogeneous junctions in electronic devices commonly ...