Effect of Aluminum Nitride on Discharge Mode Transition in Atmospheric Pressure He/O<sub>2</sub> DBD

Mu, Hai‐Bao; Guo, Yingwen; Yao, Congwei; Jia, Zhan-Hao; Chang, Zhengshi; Zhang, Guanjun

doi:10.1109/tps.2018.2811381

Cited by 3 publications

(2 citation statements)

References 17 publications

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“… a The thermal conductivity references of the materials are as follows: AlN, BaTiO 3 , and SiO 2 b The references for the relative permittivity of the materials are as follows: AlN, BaTiO 3 , and SiO 2 . The thermal conductivity and relative dielectric constants of SiO 2 , MCM-41, and SBA-15 are almost identical. …”

Section: Results and Discussionmentioning

confidence: 99%

Unlocking Efficient Synergistic Plasma-Catalyst Ammonia Synthesis: System Optimization and Catalyst Support Screening

Chen,

Tang,

et al. 2024

Energy Fuels

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Plasma catalysis for ammonia synthesis technology exhibits significant development potential, and improving the synergistic interaction between plasma and catalyst is a challenging research focus. However, current research focuses on efficient catalyst formulation design, but studies on catalyst support material screening and reactor performance optimization are lacking. Therefore, this study first enhanced the ammonia synthesis capability of the reactor and found that the 5 cm ground electrode and center plasma catalysis (CPC) coupling were the optimal system configurations. Support screening tests showed that higher dielectric properties and highly ordered interconnecting pores are crucial to achieving high ammonia concentration production. The SBA-15 (best material) filled system showed the highest reduced electric field (122.97 Td), with a more significant number of high-energy electrons and an average electron energy of up to 3.93 eV. Possible enhanced mechanisms for ammonia synthesis on SBA-15 include: (1) promoting the excitation dissociation process of feed gas in the gas phase and the activation process on the material surface and (2) using ordered tubular channels to suppress the occurrence of plasma-induced reverse reactions. By adjusting the flow rate, ammonia concentration as high as 11737 ppm was achieved, 4.58 times higher than the empty tube. The highest achieved synthesis rate was 5337 μmol/gcat/h, and the energy yield was 1.04 gNH3 /kWh. Additionally, the study indicated that a nitrogen-rich environment is more beneficial for the progression of the reaction, with the optimal N2:H2 molar ratio being 2:1. This work highlights the necessity and significance of optimizing the reaction system, including (1) system configuration, (2) catalyst support material, and (3) operating parameter. Especially, it provides new insights into the design of catalysts in a plasma environment.

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Section: Results and Discussionmentioning

confidence: 99%

Unlocking Efficient Synergistic Plasma-Catalyst Ammonia Synthesis: System Optimization and Catalyst Support Screening

Chen,

Tang,

et al. 2024

Energy Fuels

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“…In 2018, Zhang's group [66] compared the discharges of Al 2 O 3 and AlN dielectric plates using He/O 2 (0.2%-1%) as the working gas, a 2 mm gap distance, and a 20 kHz AC power supply to drive the plasma. They found that H-DBD could be obtained under certain ranges of applied voltage and O 2 percentage when using AlN as the dielectric.…”

Section: Effect Of Dielectric Materialsmentioning

confidence: 99%

On the chronological understanding of the homogeneous dielectric barrier discharge

Lu,

Fang,

Dai

et al. 2023

High Voltage

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Dielectric barrier discharges (DBD) are widely utilised non‐equilibrium atmospheric pressure plasmas with a diverse range of applications, such as material processing, surface treatment, light sources, pollution control, and medicine. Over the course of several decades, extensive research has been dedicated to the generation of homogeneous DBD (H‐DBD), focussing on understanding the transition from H‐DBD to filamentary DBD and exploring strategies to create and sustain H‐DBD. This paper first discusses the influence of various parameters on DBD, including gas flow, dielectric material, surface conductivity, and mesh electrode. Secondly, a chronological literature review is presented, highlighting the development of H‐DBD and the associated understanding of its underlying mechanisms. This encompasses the generation of H‐DBD in helium, nitrogen, and air. Lastly, the paper provides a brief overview of multiple‐current‐pulse (MCP) behaviours in H‐DBD. The objective of this article is to provide a chronological understanding of homogeneous dielectric barrier discharge (DBD). This understanding will aid in the design of new experiments aimed at better comprehending the mechanisms behind H‐DBD generation and ultimately assist in achieving large‐volume H‐DBD in an air environment.

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Changes in optical and structural properties of AlN after irradiation with C2+ ions of 40 keV

Gladkikh

Kozlovskiy

Kenzhina

et al. 2019

Vacuum

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Effect of Aluminum Nitride on Discharge Mode Transition in Atmospheric Pressure He/O₂ DBD

Cited by 3 publications

References 17 publications

Unlocking Efficient Synergistic Plasma-Catalyst Ammonia Synthesis: System Optimization and Catalyst Support Screening

Unlocking Efficient Synergistic Plasma-Catalyst Ammonia Synthesis: System Optimization and Catalyst Support Screening

On the chronological understanding of the homogeneous dielectric barrier discharge

Changes in optical and structural properties of AlN after irradiation with C2+ ions of 40 keV

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Effect of Aluminum Nitride on Discharge Mode Transition in Atmospheric Pressure He/O2 DBD

Cited by 3 publications

References 17 publications

Unlocking Efficient Synergistic Plasma-Catalyst Ammonia Synthesis: System Optimization and Catalyst Support Screening

Unlocking Efficient Synergistic Plasma-Catalyst Ammonia Synthesis: System Optimization and Catalyst Support Screening

On the chronological understanding of the homogeneous dielectric barrier discharge

Changes in optical and structural properties of AlN after irradiation with C2+ ions of 40 keV

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Product

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Effect of Aluminum Nitride on Discharge Mode Transition in Atmospheric Pressure He/O₂ DBD

Changes in optical and structural properties of AlN after irradiation with C2+ ions of 40 keV