Application of plasma for efficient H2 production: A realism of copper electrode in single dielectric barrier discharge reactor

Dey, G.R.; Zode, S. D.; Namboodiri, V.

doi:10.1063/1.5034071

Cited by 15 publications

(7 citation statements)

References 38 publications

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“…So, it may be understood that the residue also contains untreated methanol as a major part which has not been degraded. As per the recent available report, Dey et al reported H 2 production using DBD plasma technique with an inbuilt Cu electrode [79]. El-Shafie et al studied the hydrogen generation from water vapour decomposition with application of plasma as energy source [80,81].…”

Section: Resultsmentioning

confidence: 99%

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Enhanced hydrogen generation efficiency of methanol using dielectric barrier discharge plasma methodology and conducting sea water as an electrode

Panda

Sahu

2020

Heliyon

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In this work, methanol decomposition method has been discussed for the production of hydrogen gas with the application of plasma. A simple dielectric barrier discharge (DBD) plasma reactor was designed for this purpose with two types of electrode. The DBD plasma reactor was experimented by substituting one of the metal electrodes with feebly conducting sea water which yielded better efficiency in producing hydrogen gas. Experimental parameters such as; discharge voltage and time were varied by maintaining a discharge gap of 1.5 mm and the plasma discharge characteristics were studied. Filamentary type micro-discharges were found to be formed which was observed as numerous streamer clusters in the current waveform. Gas chromatographic study confirmed the production of hydrogen gas with residence time around 3.6 min. Although, the concentration (%) of H 2 was high (98.1 %) and consistent with copper electrode assembly, the rate of formation and concentration was found to be the highest (98.7 %) for water electrode for specific discharge voltage. The energy efficiency was found to be 0.5 mol H 2 /kWh and 1.2 mol H 2 /kWh for metal (Cu) and water electrodes respectively. The electrode material significantly affects the plasma condition and hence the rate of hydrogen production. Compositional analysis of the water used as electrode showed a minimal change in the composition even after the completion of the experiment as compared to the untreated water. Methanol degradation study shows the presence of untreated methanol in the residue of the plasma reactor which has been confirmed from the absorption spectra.

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Section: Resultsmentioning

confidence: 99%

“…As per the recent available report, Dey et al. reported H 2 production using DBD plasma technique with an inbuilt Cu electrode [ 79 ]. El-Shafie et al.…”

Section: Resultsmentioning

confidence: 99%

Enhanced hydrogen generation efficiency of methanol using dielectric barrier discharge plasma methodology and conducting sea water as an electrode

Panda

Sahu

2020

Heliyon

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“…It is known that the H 2 and H 2 O 2 were generated in Ar‐moisture cold plasma . The present study was explored to utilize these products (especially H 2 ) in Ar–Bz cold plasma using reactor R2 for Bz transformation employing System A conditions (Table ).…”

Section: Resultsmentioning

confidence: 99%

“…The gaseous sample delivery system was 20 ± 5 ml/min, which was controlled with a suitable mass flow controller (MFC). This type of arrangement is aimed under the study for chemical reduction/transformation of Bz to a greater extent, expecting significant contribution of in situ H 2 , generated in moisture‐containing Ar systems . The various combinations of experiment sets employed under the study are listed in Table .…”

Section: Methodsmentioning

confidence: 99%

“…It is known that the H 2 and H 2 O 2 were generated in Armoisture cold plasma. [19][20][21][22] The present study was explored to utilize these products (especially H 2 ) in Ar-Bz cold plasma using reactor R2 for Bz transformation employing System A conditions (Table 1). MS chromatograms obtained with the electrode surface deposits at different DBD durations are shown in Figure 3a, which exhibits many peaks including peaks at R T s: 5.8 and 9.3 min, respectively, due to phenol and biphenyl.…”

Section: Bz Transformation In Presence Of H 2 and H 2 Omentioning

confidence: 99%

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Benzene transformation in two dielectric barrier discharge reactors having special arrangement

Dey

2019

Plasma Processes & Polymers

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Argon–benzene (Ar–Bz) gas phase plasma chemistry work is explored for benzene transformation employing the dielectric barrier discharge (DBD) cold plasma technique. To do so, experiments are carried out with two identical coaxial DBD reactors in serial‐type arrangements. The first carries moist Ar having 100% relative humidity (90% of total Ar flowing over water) and its outlet is mixed with Bz, which is saturated in the remaining 10% Ar at the inlet of the second reactor before plasma generation. This type of arrangement perhaps favors Bz transformation significantly for explicit products because the H2 generated in the first reactor as one of the major in situ products in the Ar‐moisture DBD system might facilitate chemical reduction of Bz to biphenyl in the second reactor during DBD. Conversely, H2O2, another product in Ar‐moisture discharge, enhances the yields of phenol. DBD outlet products, such as methane and leftover Bz, are analyzed and estimated with online gas chromatograph–flame ionization detector analysis, whereas H2 is analyzed with gas chromatograph–thermal conductivity detector. Additionally, the offline gas chromatograph–mass spectrometer analysis of acetone solutions of surface deposits obtained after discharge reveals the formation of phenol and biphenyl along with other products. The periodically analyzed data reveal that the generation of phenol, biphenyl, and CH4 relate directly to discharge duration and input moisture concentration.

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Methane Conversion into Hydrogen Using DBD Plasma Reactor

Khodja,

Bouhadda,

Benyelloul

et al. 2024

Springer Proceedings in Energy

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Application of plasma for efficient H2 production: A realism of copper electrode in single dielectric barrier discharge reactor

Cited by 15 publications

References 38 publications

Enhanced hydrogen generation efficiency of methanol using dielectric barrier discharge plasma methodology and conducting sea water as an electrode

Enhanced hydrogen generation efficiency of methanol using dielectric barrier discharge plasma methodology and conducting sea water as an electrode

Benzene transformation in two dielectric barrier discharge reactors having special arrangement

Methane Conversion into Hydrogen Using DBD Plasma Reactor

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