Pressure as an additional control handle for non‐thermal atmospheric plasma processes

O2 and CO2 Dielectric Barrier Discharges (DBD) were studied at elevated (i.e., above atmospheric) pressure regimes (1–3.5 bar). It was demonstrated that these operational conditions significantly influence both the discharge dynamics and the process efficiencies of O2 and CO2 discharges. For the cas...

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Veröffentlicht in:Plasma processes and polymers 2017-11, Vol.14 (11), p.1700046-n/a
Hauptverfasser: Belov, Igor, Paulussen, Sabine, Bogaerts, Annemie
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Paulussen, Sabine
Bogaerts, Annemie
description O2 and CO2 Dielectric Barrier Discharges (DBD) were studied at elevated (i.e., above atmospheric) pressure regimes (1–3.5 bar). It was demonstrated that these operational conditions significantly influence both the discharge dynamics and the process efficiencies of O2 and CO2 discharges. For the case of the O2 DBD, the pressure rise results in the amplification of the discharge current, the appearance of emission lines of the metal electrode material (Fe, Cr, Ni) in the optical emission spectrum and the formation of a granular film of the erosion products (10–300 nm iron oxide nanoparticles) on the reactor walls. Somewhat similar behavior was observed also for the CO­2 DBD. The discharge current, the relative intensity of the CO Angstrom band measured by Optical Emission Spectroscopy (OES) and the CO2 conversion rates could be stimulated to some extent by the rise in pressure. The optimal conditions for the O2 DBD (P = 2 bar) and the CO2 DBD (P = 1.5 bar) are demonstrated. It can be argued that the dynamics of the microdischarges (MD) define the underlying process of this behavior. It could be demonstrated that the pressure increase stimulates the formation of more intensive but fewer MDs. In this way, the operating pressure can represent an additional tool to manipulate the properties of the MDs in a DBD, and as a result also the discharge performance. O2 and CO2 Dielectric Barrier Discharges (DBD) are studied at elevated (i.e., above atmospheric) pressure regimes (1–3.5 bar). It is demonstrated that these operational conditions significantly influence both the discharge dynamics and the process efficiencies of O2 and CO2 DBDs.
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It was demonstrated that these operational conditions significantly influence both the discharge dynamics and the process efficiencies of O2 and CO2 discharges. For the case of the O2 DBD, the pressure rise results in the amplification of the discharge current, the appearance of emission lines of the metal electrode material (Fe, Cr, Ni) in the optical emission spectrum and the formation of a granular film of the erosion products (10–300 nm iron oxide nanoparticles) on the reactor walls. Somewhat similar behavior was observed also for the CO­2 DBD. The discharge current, the relative intensity of the CO Angstrom band measured by Optical Emission Spectroscopy (OES) and the CO2 conversion rates could be stimulated to some extent by the rise in pressure. The optimal conditions for the O2 DBD (P = 2 bar) and the CO2 DBD (P = 1.5 bar) are demonstrated. It can be argued that the dynamics of the microdischarges (MD) define the underlying process of this behavior. It could be demonstrated that the pressure increase stimulates the formation of more intensive but fewer MDs. In this way, the operating pressure can represent an additional tool to manipulate the properties of the MDs in a DBD, and as a result also the discharge performance. O2 and CO2 Dielectric Barrier Discharges (DBD) are studied at elevated (i.e., above atmospheric) pressure regimes (1–3.5 bar). 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It was demonstrated that these operational conditions significantly influence both the discharge dynamics and the process efficiencies of O2 and CO2 discharges. For the case of the O2 DBD, the pressure rise results in the amplification of the discharge current, the appearance of emission lines of the metal electrode material (Fe, Cr, Ni) in the optical emission spectrum and the formation of a granular film of the erosion products (10–300 nm iron oxide nanoparticles) on the reactor walls. Somewhat similar behavior was observed also for the CO­2 DBD. The discharge current, the relative intensity of the CO Angstrom band measured by Optical Emission Spectroscopy (OES) and the CO2 conversion rates could be stimulated to some extent by the rise in pressure. The optimal conditions for the O2 DBD (P = 2 bar) and the CO2 DBD (P = 1.5 bar) are demonstrated. It can be argued that the dynamics of the microdischarges (MD) define the underlying process of this behavior. It could be demonstrated that the pressure increase stimulates the formation of more intensive but fewer MDs. In this way, the operating pressure can represent an additional tool to manipulate the properties of the MDs in a DBD, and as a result also the discharge performance. O2 and CO2 Dielectric Barrier Discharges (DBD) are studied at elevated (i.e., above atmospheric) pressure regimes (1–3.5 bar). It is demonstrated that these operational conditions significantly influence both the discharge dynamics and the process efficiencies of O2 and CO2 DBDs.</description><subject>Carbon dioxide</subject><subject>Chromium</subject><subject>DBD</subject><subject>Dielectric barrier discharge</subject><subject>Electrode materials</subject><subject>Erosion</subject><subject>Iron oxides</subject><subject>microdischarge</subject><subject>nanoparticles</subject><subject>Nickel</subject><subject>Optical emission spectroscopy</subject><subject>Plasma</subject><issn>1612-8850</issn><issn>1612-8869</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkM9KxDAQxoMouK5ePQc8d52kaZoel8V_sGAPiscwm6Zsl7apSRfZm4_gM_okZllZjzKHmYHf983wEXLNYMYA-O0w4DDjwHIAEPKETJhkPFFKFqfHOYNzchHCBiCFTMGEvJXehrD1lmKg2FOsqmZsXI8tNa4fvWvpGvuqtbR2nvau__78GtfWdxHAsXNhiEtj6NBi6JAO3pnoZ8MlOauxDfbqt0_J6_3dy-IxWT4_PC3my8SkmZCJrAuljDUAVrJMClXxShkueZZBnsWqa0hlUVuOuKqkQWFXVQRRGSZyIdMpuTn4xsvvWxtGvXFbH98PmhVSCJBCqkjNDpTxLgRvaz34pkO_0wz0Pjy9D08fw4uC4iD4aFq7-4fWZTkv_7Q__Dd1LQ</recordid><startdate>201711</startdate><enddate>201711</enddate><creator>Belov, Igor</creator><creator>Paulussen, Sabine</creator><creator>Bogaerts, Annemie</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-4753-0231</orcidid></search><sort><creationdate>201711</creationdate><title>Pressure as an additional control handle for non‐thermal atmospheric plasma processes</title><author>Belov, Igor ; Paulussen, Sabine ; Bogaerts, Annemie</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3546-6f988cec00e615648d2d8c26255075757ff0369fe2aabd6ca4ebd156a8c147463</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Carbon dioxide</topic><topic>Chromium</topic><topic>DBD</topic><topic>Dielectric barrier discharge</topic><topic>Electrode materials</topic><topic>Erosion</topic><topic>Iron oxides</topic><topic>microdischarge</topic><topic>nanoparticles</topic><topic>Nickel</topic><topic>Optical emission spectroscopy</topic><topic>Plasma</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Belov, Igor</creatorcontrib><creatorcontrib>Paulussen, Sabine</creatorcontrib><creatorcontrib>Bogaerts, Annemie</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Plasma processes and polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Belov, Igor</au><au>Paulussen, Sabine</au><au>Bogaerts, Annemie</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pressure as an additional control handle for non‐thermal atmospheric plasma processes</atitle><jtitle>Plasma processes and polymers</jtitle><date>2017-11</date><risdate>2017</risdate><volume>14</volume><issue>11</issue><spage>1700046</spage><epage>n/a</epage><pages>1700046-n/a</pages><issn>1612-8850</issn><eissn>1612-8869</eissn><abstract>O2 and CO2 Dielectric Barrier Discharges (DBD) were studied at elevated (i.e., above atmospheric) pressure regimes (1–3.5 bar). It was demonstrated that these operational conditions significantly influence both the discharge dynamics and the process efficiencies of O2 and CO2 discharges. For the case of the O2 DBD, the pressure rise results in the amplification of the discharge current, the appearance of emission lines of the metal electrode material (Fe, Cr, Ni) in the optical emission spectrum and the formation of a granular film of the erosion products (10–300 nm iron oxide nanoparticles) on the reactor walls. Somewhat similar behavior was observed also for the CO­2 DBD. The discharge current, the relative intensity of the CO Angstrom band measured by Optical Emission Spectroscopy (OES) and the CO2 conversion rates could be stimulated to some extent by the rise in pressure. The optimal conditions for the O2 DBD (P = 2 bar) and the CO2 DBD (P = 1.5 bar) are demonstrated. It can be argued that the dynamics of the microdischarges (MD) define the underlying process of this behavior. It could be demonstrated that the pressure increase stimulates the formation of more intensive but fewer MDs. In this way, the operating pressure can represent an additional tool to manipulate the properties of the MDs in a DBD, and as a result also the discharge performance. O2 and CO2 Dielectric Barrier Discharges (DBD) are studied at elevated (i.e., above atmospheric) pressure regimes (1–3.5 bar). It is demonstrated that these operational conditions significantly influence both the discharge dynamics and the process efficiencies of O2 and CO2 DBDs.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/ppap.201700046</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-4753-0231</orcidid></addata></record>
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subjects Carbon dioxide
Chromium
DBD
Dielectric barrier discharge
Electrode materials
Erosion
Iron oxides
microdischarge
nanoparticles
Nickel
Optical emission spectroscopy
Plasma
title Pressure as an additional control handle for non‐thermal atmospheric plasma processes
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