Probing the role of a Non-Thermal Plasma (NTP) in the hybrid NTP catalytic oxidation of methane
Probing the role of a Non-Thermal Plasma (NTP) in the hybrid NTP catalytic oxidation of methane
Three recurring hypotheses are often used to explain the effect of non-thermal plasmas (NTPs) on NTP catalytic hybrid reactions; namely, modification or heating of the catalyst or creation of new reaction pathways by plasma-produced species. NTP-assisted methane (CH4) oxidation over Pd/Al2O3 was investigated by direct monitoring of the X-ray absorption fine structure of the catalyst, coupled with end-of-pipe mass spectrometry. This in situ study revealed that the catalyst did not undergo any significant structural changes under NTP conditions. However, the NTP did lead to an increase in the temperature of the Pd nanoparticles; although this temperature rise was insufficient to activate the thermal CH4 oxidation reaction. The contribution of a lower activation barrier alternative reaction pathway involving the formation of CH3(g) from electron impact reactions is proposed.
9351-9355
Gibson, Emma K.
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Stere, Cristina E.
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Curran-McAteer, Bronagh
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Jones, Wilm
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Cibin, Giannantonio
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Gianolio, Diego
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Goguet, Alexandre
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Wells, Peter P.
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Catlow, C. Richard A.
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Collier, Paul
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Hinde, Peter
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Hardacre, Christopher
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1 August 2017
Gibson, Emma K.
738c74e4-ab68-42fe-bda8-9d4a43669b31
Stere, Cristina E.
1e8a4378-b55e-4560-8459-5b8d2282f77c
Curran-McAteer, Bronagh
4ac56e77-f404-4917-bd98-7591dfc03f93
Jones, Wilm
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Cibin, Giannantonio
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Gianolio, Diego
5b316f7d-f314-4337-954e-8c0ce8e38223
Goguet, Alexandre
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Wells, Peter P.
bc4fdc2d-a490-41bf-86cc-400edecf2266
Catlow, C. Richard A.
50b88125-9415-4b37-9146-af6783e42510
Collier, Paul
5ef98081-0269-4b6f-8c29-8e50facf17db
Hinde, Peter
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Hardacre, Christopher
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Gibson, Emma K., Stere, Cristina E., Curran-McAteer, Bronagh, Jones, Wilm, Cibin, Giannantonio, Gianolio, Diego, Goguet, Alexandre, Wells, Peter P., Catlow, C. Richard A., Collier, Paul, Hinde, Peter and Hardacre, Christopher
(2017)
Probing the role of a Non-Thermal Plasma (NTP) in the hybrid NTP catalytic oxidation of methane.
Angewandte Chemie International Edition, 56 (32), .
(doi:10.1002/anie.201703550).
Abstract
Three recurring hypotheses are often used to explain the effect of non-thermal plasmas (NTPs) on NTP catalytic hybrid reactions; namely, modification or heating of the catalyst or creation of new reaction pathways by plasma-produced species. NTP-assisted methane (CH4) oxidation over Pd/Al2O3 was investigated by direct monitoring of the X-ray absorption fine structure of the catalyst, coupled with end-of-pipe mass spectrometry. This in situ study revealed that the catalyst did not undergo any significant structural changes under NTP conditions. However, the NTP did lead to an increase in the temperature of the Pd nanoparticles; although this temperature rise was insufficient to activate the thermal CH4 oxidation reaction. The contribution of a lower activation barrier alternative reaction pathway involving the formation of CH3(g) from electron impact reactions is proposed.
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Gibson_et_al-2017-Angewandte_Chemie_International_Edition
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Accepted/In Press date: 1 June 2017
e-pub ahead of print date: 6 July 2017
Published date: 1 August 2017
Identifiers
Local EPrints ID: 413122
URI: http://eprints.soton.ac.uk/id/eprint/413122
ISSN: 1433-7851
PURE UUID: 7fa0de47-961c-4a1b-a209-ed82d3d27815
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Date deposited: 15 Aug 2017 16:30
Last modified: 16 Mar 2024 03:47
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Contributors
Author:
Emma K. Gibson
Author:
Cristina E. Stere
Author:
Bronagh Curran-McAteer
Author:
Wilm Jones
Author:
Giannantonio Cibin
Author:
Diego Gianolio
Author:
Alexandre Goguet
Author:
C. Richard A. Catlow
Author:
Paul Collier
Author:
Peter Hinde
Author:
Christopher Hardacre
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