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Morphology, Microstructure, and Hydrogen Content of Carbon Nanostructures Obtained by PECVD at Various Temperatures

Acosta Gentoiu, M. et al.

Journal of nanomaterials. Volume 2017 (2017) -- Hindawi

Online access

  • Title:
    Morphology, Microstructure, and Hydrogen Content of Carbon Nanostructures Obtained by PECVD at Various Temperatures
  • Author: Acosta Gentoiu, M.;
    Betancourt-Riera, R.;
    Vizireanu, S.;
    Burducea, I.;
    Marascu, V.;
    Stoica, S. D.;
    Bita, B. I.;
    Dinescu, G.;
    Riera, R.;
    Yap, Yoke K.
  • Found In: Journal of nanomaterials. Volume 2017 (2017)
  • Journal Title: Journal of nanomaterials
  • Subjects: Nanomatériaux; Nanostructures; Nanostructured materials--Periodicals; Nanotechnology--Periodicals; Nanostructured materials; Nanotechnology; Periodicals; Fulltext; Internet Resources; Dewey: 620.115
  • Rights: legaldeposit
  • Publication Details: Hindawi
  • Abstract: Abstract :

    Carbon nanostructures were obtained by acetylene injection into an argon plasma jet in the presence of hydrogen. The samples were synthesized in similar conditions, except that the substrate deposition temperaturesTDwere varied, ranging from 473 to 973 K. A strong dependence of morphology, structure, and graphitization uponTDwas found. We obtained vertical aligned carbon nanotubes (VA-CNTs) at low temperatures as 473 K, amorphous carbon nanoparticles (CNPs) at temperatures from about 573 to 673 K, and carbon nanowalls (CNWs) at high temperatures from 773 to 973 K. Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, elastic recoil detection analysis, X-ray photoelectron spectroscopy, and Raman spectroscopy were used to substantiate the differences in these material types. It is known that hydrogen concentration modifies strongly the properties of the materials. Different concentrations of hydrogen-bonded carbon could be identified in amorphous CNP, VA-CNT, and CNW. Also, the H : C ratios along depth were determined for the obtained materials.


  • Identifier: System Number: LDEAvdc_100082990296.0x000001; Journal ISSN: 1687-4110; 10.1155/2017/1374973
  • Publication Date: 2017
  • Physical Description: Electronic
  • Shelfmark(s): ELD Digital store

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