Experimental investigation on large-area dielectric barrier discharge in atmospheric nitrogen and air assisted by the ultraviolet lamp

Zhang, Yan; Wang, Wenchun; Wang, Dezhen; Peng, Xuwen

doi:10.1016/j.saa.2008.10.003

Cited by 10 publications

(4 citation statements)

References 23 publications

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“…Further multiplication of charges occurs due to collisional ionization'. It appears that in many real situations the limiting factor for the primary streamer formation and propagation is rather too high ionization of the background gas [71,72]. According to Wormeester et al [67] and Celestin et al [73] the photoionization is the primary source of seed electrons in air except for high background ionization above ∼10 10 cm −3 .…”

Section: Historical Overview Experimental Developments and Basic Term...mentioning

confidence: 99%

Streamer breakdown: cathode spot formation, Trichel pulses and cathode-sheath instabilities

Černák

Hoder

Bonaventura

2020

Plasma Sources Sci. Technol.

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The review provides an up-to-date overview and discussion of phenomena related to positive streamer breakdowns in short uniform and non-uniform field (corona) gaps. The terminology used to specify different types of streamer phenomena is critically discussed in light of a unified theory of high-pressure gas discharges describing the sequence of ionization events from initial electron avalanches up to a partial or complete breakdown. The emphasis is given to the understanding of the formation of an active cathode spot by the streamer arrival to the cathode, which is the critical but still obscure phase of the breakdown development. Based on the analysis including a computer simulation model a hypothesis is advanced that also such widely studied and practically important gas discharge phenomena as negative corona Trichel pulses and fast ionization instabilities in cathode regions of high-pressure gas discharges are due to the formation of positive streamers in the immediate cathode vicinity. The proposed hypothesis offers attractive feature of the unification of a wide scale of high-pressure gas discharges within the general class of positive streamer initiated breakdown phenomena. Moreover, it provides indications for further study in the field both by experiment and computer simulations.

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Section: Historical Overview Experimental Developments and Basic Term...mentioning

confidence: 99%

Streamer breakdown: cathode spot formation, Trichel pulses and cathode-sheath instabilities

Černák

Hoder

Bonaventura

2020

Plasma Sources Sci. Technol.

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“…The fact that CPP contributed to the decomposition of H 2 S better than single DBD could be explained as follows: gas molecules under the UV radiation would help to generate energy electrons and multiplied population of micro-discharge, thus resulting in lower break down voltage and higher energy efficiency. ZHANG et al [38] has conducted investigation which indicates that the ultraviolet pre-ionization can greatly improve the uniformity of the dielectric barrier discharge, which means that CPP has better synergistic reaction effects.…”

Section: Reaction Mechanism Analysismentioning

confidence: 99%

Destruction of H₂S Gas with a Combined Plasma Photolysis (CPP) Reactor

Hong¹,

Tianyi(纪天一)²,

Zhang³

et al. 2012

Plasma Sci. Technol.

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A combined plasma photolysis (CPP) reactor that utilized the dielectric barrier discharge (DBD) plasma together with DBD-driven KrI * excimer ultraviolet emission was applied to the decomposition of H2S gas. The effects of applied voltage, input current, gas flow velocity, original concentration as well as the ratio of Kr/I2 mixture on H2S removal efficiency were investigated. Gas streams containing H2S were separately treated with single DBD and CPP reactor under the same conditions. In comparison to DBD, CPP could greatly enhance the H2S removal efficiency at the same applied voltage, inlet gas concentration and gas flow velocity. In addition, the reaction mechanism was also discussed in this paper.

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“…Therefore, in recent years various methods are taken to polypropylene surface modification [1][2][3] to improve its surface properties in order to broaden its application range. Atmospheric pressure plasma [4][5][6][7][8] is a very effective method for improving the surface properties of PP because it is a completely dry processing method, and only causes surface physical or chemical change in the region of 50-100nm, so it does not change the excellent performance of PP and gives the new features to PP.…”

Section: Introductionmentioning

confidence: 99%

The Surface Hydrophilicity of Polypropylene Non-Woven Treated by Atmospheric Glow Plasma

Yan

Liu

Shang

et al. 2011

AMR

Self Cite

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In this paper, polypropylene (PP) melt blown non-woven fabric is treated by atmospheric He, He/O2 or He/CO2 glow discharge plasma. The variation of the surface hidrophilicity of PP sample is experimentally investigated by the surface water contact angle. The results show that the surface water contact angle firstly has a sharp decline and then up to saturation. It is worth noting that the time the water contact angle is up to saturation greatly shortens when a spot of O2 or CO2 are added into the atmospheric He. In addition, when the PP samples are treated by the atmospheric glow discharge plasma, it is necessary of selecting a right applied voltage.

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Experimental investigation on large-area dielectric barrier discharge in atmospheric nitrogen and air assisted by the ultraviolet lamp

Cited by 10 publications

References 23 publications

Streamer breakdown: cathode spot formation, Trichel pulses and cathode-sheath instabilities

Streamer breakdown: cathode spot formation, Trichel pulses and cathode-sheath instabilities

Destruction of H₂S Gas with a Combined Plasma Photolysis (CPP) Reactor

The Surface Hydrophilicity of Polypropylene Non-Woven Treated by Atmospheric Glow Plasma

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Experimental investigation on large-area dielectric barrier discharge in atmospheric nitrogen and air assisted by the ultraviolet lamp

Cited by 10 publications

References 23 publications

Streamer breakdown: cathode spot formation, Trichel pulses and cathode-sheath instabilities

Streamer breakdown: cathode spot formation, Trichel pulses and cathode-sheath instabilities

Destruction of H2S Gas with a Combined Plasma Photolysis (CPP) Reactor

The Surface Hydrophilicity of Polypropylene Non-Woven Treated by Atmospheric Glow Plasma

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Destruction of H₂S Gas with a Combined Plasma Photolysis (CPP) Reactor