Research output: Contribution to journal › Article › peer-review
NO formation mechanisms studied by infrared laser absorption in a single low-pressure plasma pulse. / Gatilova, L. V.; Allegraud, K.; Guillon, J.; Ionikh, Y. Z.; Cartry, G.; Röpcke, J.; Rousseau, A.
In: Plasma Sources Science and Technology, Vol. 16, No. 1, S12, 01.02.2007, p. S107-S114.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - NO formation mechanisms studied by infrared laser absorption in a single low-pressure plasma pulse
AU - Gatilova, L. V.
AU - Allegraud, K.
AU - Guillon, J.
AU - Ionikh, Y. Z.
AU - Cartry, G.
AU - Röpcke, J.
AU - Rousseau, A.
PY - 2007/2/1
Y1 - 2007/2/1
N2 - The formation of NO molecules during a single plasma pulse in a low-pressure dc discharge is measured using time resolved tunable diode laser absorption spectroscopy in the infrared region. The pulse duration ranges from 280 νs to 16 ms and the pulse current ranges from 20 to 80 mA. The gas pressure is 133 Pa. Experimental results show that NO density is about proportional to the product of the pulse current times the pulse duration. NO formation mechanisms are discussed. We show that reaction of oxygen atoms with vibrationally excited nitrogen molecules (N2(X, v > 12) + O) does not impact the NO concentration. Numerical computation of a simplified kinetics taking into account excited metastable state N2(A) for the NO formation shows good agreement.
AB - The formation of NO molecules during a single plasma pulse in a low-pressure dc discharge is measured using time resolved tunable diode laser absorption spectroscopy in the infrared region. The pulse duration ranges from 280 νs to 16 ms and the pulse current ranges from 20 to 80 mA. The gas pressure is 133 Pa. Experimental results show that NO density is about proportional to the product of the pulse current times the pulse duration. NO formation mechanisms are discussed. We show that reaction of oxygen atoms with vibrationally excited nitrogen molecules (N2(X, v > 12) + O) does not impact the NO concentration. Numerical computation of a simplified kinetics taking into account excited metastable state N2(A) for the NO formation shows good agreement.
UR - http://www.scopus.com/inward/record.url?scp=33947413997&partnerID=8YFLogxK
U2 - 10.1088/0963-0252/16/1/S12
DO - 10.1088/0963-0252/16/1/S12
M3 - Article
AN - SCOPUS:33947413997
VL - 16
SP - S107-S114
JO - Plasma Sources Science and Technology
JF - Plasma Sources Science and Technology
SN - 0963-0252
IS - 1
M1 - S12
ER -
ID: 62197129