H2 : the critical juncture between polymerization and dissociation of hydrocarbons in a low-temperature plasma

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Uittreksel

The chemistry in an argon plasma jet, admixed with a small percentage of CH4, C2H2, H2 and mixtures thereof, is investigated by means of residual gas analysis. Polymerization of such hydrocarbon precursors is known to occur when their densities exceed the Ar+ ion density. This paper shows that polymerization also occurs for precursor gas flows far below the initial Ar+ ion flow emanating from the plasma source. This is entirely due to the negative effect of H2 on the Ar+ ion density. Adding 1–2% of H2 to the total argon and hydrocarbon gas flow suffices to initiate polymerization. Although, H2 can be injected directly into the system, fragmentation of the hydrocarbon precursors themselves can likewise supply (part of) the required H2. Polymerization is furthermore enhanced when both precursors are used together. The contribution of C3Hy species to the plasma chemistry will likewise be substantiated.
Originele taal-2Engels
Pagina's (van-tot)832-841
TijdschriftPlasma Processes and Polymers
Volume8
Nummer van het tijdschrift9
DOI's
StatusGepubliceerd - 2011

Vingerafdruk

cold plasmas
Hydrocarbons
polymerization
hydrocarbons
Polymerization
dissociation
Plasmas
Argon
Ions
gas flow
Flow of gases
plasma chemistry
Temperature
Plasma jets
Gas fuel analysis
gas analysis
Plasma sources
residual gas
argon plasma
plasma jets

Citeer dit

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title = "H2 : the critical juncture between polymerization and dissociation of hydrocarbons in a low-temperature plasma",
abstract = "The chemistry in an argon plasma jet, admixed with a small percentage of CH4, C2H2, H2 and mixtures thereof, is investigated by means of residual gas analysis. Polymerization of such hydrocarbon precursors is known to occur when their densities exceed the Ar+ ion density. This paper shows that polymerization also occurs for precursor gas flows far below the initial Ar+ ion flow emanating from the plasma source. This is entirely due to the negative effect of H2 on the Ar+ ion density. Adding 1–2{\%} of H2 to the total argon and hydrocarbon gas flow suffices to initiate polymerization. Although, H2 can be injected directly into the system, fragmentation of the hydrocarbon precursors themselves can likewise supply (part of) the required H2. Polymerization is furthermore enhanced when both precursors are used together. The contribution of C3Hy species to the plasma chemistry will likewise be substantiated.",
author = "T.A.R. Hansen and {Sanden, van de}, M.C.M. and R.A.H. Engeln",
year = "2011",
doi = "10.1002/ppap.201100023",
language = "English",
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H2 : the critical juncture between polymerization and dissociation of hydrocarbons in a low-temperature plasma. / Hansen, T.A.R.; Sanden, van de, M.C.M.; Engeln, R.A.H.

In: Plasma Processes and Polymers, Vol. 8, Nr. 9, 2011, blz. 832-841.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - H2 : the critical juncture between polymerization and dissociation of hydrocarbons in a low-temperature plasma

AU - Hansen, T.A.R.

AU - Sanden, van de, M.C.M.

AU - Engeln, R.A.H.

PY - 2011

Y1 - 2011

N2 - The chemistry in an argon plasma jet, admixed with a small percentage of CH4, C2H2, H2 and mixtures thereof, is investigated by means of residual gas analysis. Polymerization of such hydrocarbon precursors is known to occur when their densities exceed the Ar+ ion density. This paper shows that polymerization also occurs for precursor gas flows far below the initial Ar+ ion flow emanating from the plasma source. This is entirely due to the negative effect of H2 on the Ar+ ion density. Adding 1–2% of H2 to the total argon and hydrocarbon gas flow suffices to initiate polymerization. Although, H2 can be injected directly into the system, fragmentation of the hydrocarbon precursors themselves can likewise supply (part of) the required H2. Polymerization is furthermore enhanced when both precursors are used together. The contribution of C3Hy species to the plasma chemistry will likewise be substantiated.

AB - The chemistry in an argon plasma jet, admixed with a small percentage of CH4, C2H2, H2 and mixtures thereof, is investigated by means of residual gas analysis. Polymerization of such hydrocarbon precursors is known to occur when their densities exceed the Ar+ ion density. This paper shows that polymerization also occurs for precursor gas flows far below the initial Ar+ ion flow emanating from the plasma source. This is entirely due to the negative effect of H2 on the Ar+ ion density. Adding 1–2% of H2 to the total argon and hydrocarbon gas flow suffices to initiate polymerization. Although, H2 can be injected directly into the system, fragmentation of the hydrocarbon precursors themselves can likewise supply (part of) the required H2. Polymerization is furthermore enhanced when both precursors are used together. The contribution of C3Hy species to the plasma chemistry will likewise be substantiated.

U2 - 10.1002/ppap.201100023

DO - 10.1002/ppap.201100023

M3 - Article

VL - 8

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EP - 841

JO - Plasma Processes and Polymers

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SN - 1612-8850

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