Přístupnostní navigace
E-přihláška
Vyhledávání Vyhledat Zavřít
Detail publikace
ELIÁŠ, M. KLOC, P. JAŠEK, O. MAZÁNKOVÁ, V. TRUNEC, D. HRDÝ, R. ZAJÍČKOVÁ, L.
Originální název
Atmospheric pressure barrier discharge at high temperature: Diagnostics and carbon nanotubes deposition
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Atmospheric pressure dielectric barrier discharge (DBD) in Ar/H2 gas feed with C2H2 or CH4 admixture was studied at room and high temperature of 680 C by plasma diagnostics (electrical measurements, fast camera imaging, and optical emission spectroscopy). It was shown that filamentary DBD in pure Ar or Ar/H2 can be converted into homogeneous discharge by an acetylene admixture. Fast intensified charge-coupled device (ICCD) camera proved that this homogeneous discharge is an atmospheric pressure glow discharge (APGD) at room temperature whereas at high temperature the discharge mode switches at every half-period between APGD and atmospheric pressure Townsend discharge. The high temperature discharges (610–710 C) in Ar/ H2/C2H2 and Ar/H2/CH4 were also investigated with respect to a surface bound deposition of carbon nanotubes using 5 nm thick iron layer as a catalyst. CNTs were deposited without any dedicated catalyst pretreatment phase. The quality of CNTs, namely, their density, vertical alignment, and width of the diameter distribution, was better for the C2H2 gas feed and higher temperatures.
Klíčová slova
Barrier discharge, carbon nanotubes, high temperature surface, plasma diagnostics
Autoři
ELIÁŠ, M.; KLOC, P.; JAŠEK, O.; MAZÁNKOVÁ, V.; TRUNEC, D.; HRDÝ, R.; ZAJÍČKOVÁ, L.
Rok RIV
2015
Vydáno
9. 3. 2015
Nakladatel
AIP Publishing
ISSN
0021-8979
Periodikum
Journal of Aplied Physics
Ročník
117
Číslo
10
Stát
Spojené státy americké
Strany od
103301-1
Strany do
103301-10
Strany počet
URL
http://dx.doi.org/10.1063/1.4914062