AC-driven atmospheric pressure glow discharge co-improves conversion and energy efficiency of CO2 splitting

Meng, Guodong; Xia, Linghan; Cheng, Yonghong; Yin, Zongyou

doi:10.1016/j.jcou.2023.102447

Cited by 7 publications

(13 citation statements)

References 37 publications

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“…For APGD, the column region occupies the main space in the discharge area, where the electron temperature is lower. 25 High-energy electrons are usually concentrated near electrodes 25 and migrate along the gas flow direction to the jet area. Without wall loss in the jet, electrons are mainly lost in the recombination reaction with ions.…”

Section: Resultsmentioning

confidence: 99%

“…It can be seen that the electron density in the discharge area is 10 18 –10 21 m –3 , and the electron density in the jet area is 10 18 –10 20 m –3 which is higher than DBD-form jet plasma (10 16 –10 19 ). , The electron temperature in the jet area (2–4 eV) is higher than that in the discharge area (2–2.5 eV). For APGD, the column region occupies the main space in the discharge area, where the electron temperature is lower . High-energy electrons are usually concentrated near electrodes and migrate along the gas flow direction to the jet area.…”

Section: Resultsmentioning

confidence: 99%

“…At the discharge power of 40 W, the increase in the flow rate possesses a negative influence on the conversion rate and a positive influence on energy efficiency, which is similar to the trend reported in APGD-assisted CO 2 dissociation without a catalyst. 25 However, at the discharge power of 60 and 80 W, the conversion rates first increase and then decrease with the increase of flow rate and reach a maximum value at a flow rate of 1100 mL/min. It can be inferred that the operation condition of the catalyst is optimized, leading to excellent catalytic activity at an 1100 mL/min flow rate.…”

Section: Influence Of Reaction Plasma Parametersmentioning

confidence: 95%

“…APGD plasma does not only have a high electron density (>10 18 m –3 ), but suitable electron temperature for CO 2 molecular vibration excitation (2–3 eV), illustrating that competitive conversion rate and energy efficiency can be achieved by APGD . In the previous work, we found that the APGD plasma exhibits excellent performance in assisting CO 2 dissociation . Unfortunately, the appropriate catalysts and synergistic form for APGD were not clear during the previous study.…”

Section: Introductionmentioning

confidence: 90%

“…22 In the previous work, we found that the APGD plasma exhibits excellent performance in assisting CO 2 dissociation. 25 Unfortunately, the appropriate catalysts and synergistic form for APGD were not clear during the previous study. Due to the high gas temperature (>2000 °C) in the APGD main channel, catalysts cannot be placed at the discharge area to avoid deactivation.…”

Section: Introductionmentioning

confidence: 99%

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Enhancing CO₂ Conversion via Atmospheric Pressure Glow Discharge Plasma Jet Coupled with Catalysts

Xia,

Wu,

et al. 2023

Energy Fuels

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As one of the most consensus goals around the world, reduction of carbon emissions has attracted huge attention from academic and industry communities for developing renewable energy sources and carbon capture techniques. Nonthermal equilibrium plasma catalysis has been proven to be a very promising way for CO 2 conversion into high-value-added products; however, the synergistic catalytic mechanism between the plasma and various catalysts remains a challenge. In this work, we designed a reactor of atmospheric pressure glow discharge (APGD) plasma jet coupled with V 2 O 5 /TiO 2 nanocomposite catalysts and studied the influence of V 2 O 5 mass fraction, catalyst pretreatment, and reaction plasma parameters on the CO 2 dissociation performance. Results showed that the designed reactor could introduce high-density plasma to the downstream area and maintain lower gas temperature, allowing the collaboration between APGD and the V 2 O 5 /TiO 2 catalyst. The XRD analysis indicated that the solid solution phase TiVO 4 could be formed in catalysts by V 2 O 5 doping and reach a maximal content at a mass fraction of 30%, which determined the most excellent redox ability of the catalyst. The pretreatment of the as-prepared catalyst by Ar dielectric barrier discharge (DBD) plasma increased the oxygen vacancy density of the catalyst, thereby raising the conversion rate by 18.43%. Moreover, the transition regime between laminar and turbulent states was found to be the optimal configuration for CO 2 dissociation. The reaction pathway was proposed for CO 2 dissociation synergistically catalyzed by an APGD plasma jet and V 2 O 5 / TiO 2 . Ultimately, the maximum conversion of 14.88% and energy efficiency of 40.45% were simultaneously achieved, which were superior to the results of most atmospheric pressure plasmas. This work opens an avenue to develop plasma technology for sustainable CO 2 utilization.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Influence Of Reaction Plasma Parametersmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Enhancing CO₂ Conversion via Atmospheric Pressure Glow Discharge Plasma Jet Coupled with Catalysts

Xia,

Wu,

et al. 2023

Energy Fuels

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Recent progress of atmospheric and room‐temperature plasma as a new and promising mutagenesis technology

Li,

Shen,

Ding

et al. 2024

Cell Biochemistry & Function

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At present, atmospheric and room‐temperature plasma (ARTP) is regarded as a new and powerful mutagenesis technology with the advantages of environment‐friendliness, operation under mild conditions, and fast mutagenesis speed. Compared with traditional mutagenesis strategies, ARTP is used mainly to change the structure of microbial DNA, enzymes, and proteins through a series of physical, chemical, and electromagnetic effects with the organisms, leading to nucleotide breakage, conversion or inversion, causing various DNA damages, so as to screen out the microbial mutants with better biological characteristics. As a result, in recent years, ARTP mutagenesis and the combination of ARTP with traditional mutagenesis have been widely used in microbiology, showing great potential for application. In this review, the recent progress of ARTP mutagenesis in different application fields and bottlenecks of this technology are systematically summarized, with a view to providing a theoretical basis and technical support for better application. Finally, the outlook of ARTP mutagenesis is presented, and we identify the challenges in the field of microbial mutagenesis by ARTP.

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Influence of humidity on the plasma‐assisted CO₂ conversion

Attri,

Okumura,

Takeuchi

et al. 2023

Plasma Processes & Polymers

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The current research focuses on carbon dioxide (CO2) conversion at ambient conditions using streamer plasma. In this study, treatment time and humidity have been found to influence CO2 conversion. Our findings reveal a maximum CO2 conversion rate of 35.2%, achieved with a remarkably high energy efficiency of CO2 conversion at 135% and a low energy cost of 2.17 eV/molecule. We employed optical emission and fourier‐transform infrared spectroscopy spectroscopy to analyze the different dissociation products of CO2 and determine the percentage of CO2 conversion. Furthermore, we utilized a two‐dimensional (2D) fluid dynamics model and a zero‐dimensional (0D) chemistry model to gain insights into the reactor mechanism.

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AC-driven atmospheric pressure glow discharge co-improves conversion and energy efficiency of CO2 splitting

Cited by 7 publications

References 37 publications

Enhancing CO₂ Conversion via Atmospheric Pressure Glow Discharge Plasma Jet Coupled with Catalysts

Enhancing CO₂ Conversion via Atmospheric Pressure Glow Discharge Plasma Jet Coupled with Catalysts

Recent progress of atmospheric and room‐temperature plasma as a new and promising mutagenesis technology

Influence of humidity on the plasma‐assisted CO₂ conversion

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AC-driven atmospheric pressure glow discharge co-improves conversion and energy efficiency of CO2 splitting

Cited by 7 publications

References 37 publications

Enhancing CO2 Conversion via Atmospheric Pressure Glow Discharge Plasma Jet Coupled with Catalysts

Enhancing CO2 Conversion via Atmospheric Pressure Glow Discharge Plasma Jet Coupled with Catalysts

Recent progress of atmospheric and room‐temperature plasma as a new and promising mutagenesis technology

Influence of humidity on the plasma‐assisted CO2 conversion

Contact Info

Product

Resources

About

Enhancing CO₂ Conversion via Atmospheric Pressure Glow Discharge Plasma Jet Coupled with Catalysts

Enhancing CO₂ Conversion via Atmospheric Pressure Glow Discharge Plasma Jet Coupled with Catalysts

Influence of humidity on the plasma‐assisted CO₂ conversion