Article
Physics, Fluids & Plasmas
Naoki Shirai, Hiroki Owada, Koichi Sasaki
Summary: An efficient method for generating OH radicals in the spatial afterglow of atmospheric-pressure plasma was investigated, which utilized intersecting helium flows and a DC glow discharge, with water vapor admixed at the intersection point for OH radicals formation and transportation to the afterglow zone.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Stephan Renninger, Jan Stein, Maike Lambarth, Kai Peter Birke
Summary: This study presents a plasma reactor operating in the glow-to-arc transition region, achieving a high energy efficiency of 43% and CO2 conversion rate of 27%. The relationship between the electrical characteristics of the plasma and the applied magnetic field was studied, revealing the tunability and stabilization of the plasma using magnetic fields.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Optics
Hans Hoeft, Markus M. Becker, Manfred Kettlitz, Simon Dap, Nicolas Naude, Ronny Brandenburg, Klaus-Dieter Weltmann
Summary: The effects of nitrous oxide (N2O) in nitrogen (N-2) on the development and morphology of sine driven dielectric barrier discharges were studied. The characteristics of the discharge and its development were analyzed through various measurements and numerical modeling. The results showed that even with small amounts of N2O, the associative ionization of atomic nitrogen and oxygen played a crucial role in sustaining the volume memory effect and causing the formation of a diffuse discharge.
EUROPEAN PHYSICAL JOURNAL D
(2023)
Article
Physics, Fluids & Plasmas
Yarong Zhang, Junlin Fang, Shaofeng Xu, Ying Guo, Jianjun Shi
Summary: A two-dimensional self-consistent fluid model was developed to investigate the ignition process of radio frequency (RF) discharge in an atmospheric helium cascade glow discharge. The model considered the case where a pulsed discharge was excited ahead of the RF discharge by applying pulsed DC voltage and RF voltage to two parallel plate electrodes separately. The spatio-temporal distribution of electron, ion, electric field, and mean electron energy showed that the electron and ion localized in the vicinity of the RF electrode with the extinguishment of the pulsed discharge, while a sheath region formed above the pulsed electrode due to the space charge. This explained the asymmetric ignition of RF discharge in the interelectrode gap observed in experiments. The migration of ions towards the pulsed electrode allowed for stable operation of the RF discharge. Furthermore, the migration time of ions from the RF electrode to the pulsed electrode was estimated to be 3.0 μs, which was consistent with the calculated migration time of ions across the discharge gap.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Physics, Fluids & Plasmas
Audrey Chatain, Ana Sofia Morillo-Candas, Ludovic Vettier, Nathalie Carrasco, Guy Cernogora, Olivier Guaitella
Summary: The addition of small amounts of H-2 in a DC glow discharge in N-2 at low pressure and low power was studied. The presence of H-2 greatly affects the N-2 plasma discharges, increasing the electric field and electron energy. It also leads to the formation of new species, including ammonia and hydrogen-bearing ions. This research provides insights into the plasma species in the ionosphere of Titan.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Thermodynamics
Yifan Qiu, Yifei Zhu, Yun Wu, Ningqiu Zhao, Zhenyang Li, Mai Hao, Boya Zhang, Di Pan
Summary: The ignition delay and NO emission characteristics of the NH3/N2/O2 mixture under the influence of pulse-DC hybrid plasma discharges are studied. The research proposes an improved kinetics mechanism and develops a coupled plasma and combustion chemistry code for sensitivity/pathway analysis. The study finds that NO emission is strongly enhanced in NH3 containing mixtures due to increased HNO, NH and N density in the DC stage, and NO density increases with E/N value in the DC stage due to the reduction of NH and NH2 species. The study also investigates the role of O2 (a1 Ag) in promoting ignition and finds that it mainly reacts with H2 and H to produce radicals instead of being quenched by NO.
COMBUSTION AND FLAME
(2023)
Article
Physics, Fluids & Plasmas
G. Naidis, N. Yu Babaeva
Summary: A simple model of glow discharges in CO2 was presented, and analytical expressions for plasma characteristics and the molar fraction of CO molecules were obtained. The plasma characteristics were estimated for CO2 discharges at different pressures and currents, consistent with recent experimental results.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Article
Physics, Fluids & Plasmas
A. Saifutdinov
Summary: In this study, various modes of direct current discharges in argon at atmospheric pressure were investigated based on a unified model for describing the gas discharge gap and electrodes in 2D geometry. Numerical calculations were conducted to reveal the influence of electrode cooling conditions on the current-voltage characteristic of the discharge, including the transition from normal glow to arc discharge and the occurrence of abnormal glow mode. Different forms of arc discharge, either with diffuse or contracted current spot, were observed depending on the cooling conditions. Low-current mode exhibited current and voltage oscillations during the transition from Townsend to normal glow discharge.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Applied
Sing Wei Ng, Peng Lu, Aleksandra Rulikowska, Daniela Boehm, Graham O'Neill, Paula Bourke
Summary: The study investigated the structural modifications and antigenic response of major milk protein allergens induced by non-thermal treatment using atmospheric cold plasma. Results showed a reduction in the intensity of casein and alpha-lactalbumin bands after plasma treatment, while beta-lactoglobulin intensity remained unchanged. Changes in protein secondary structure, amino acid compositions, and antigenicity were observed post plasma treatment.
Article
Physics, Fluids & Plasmas
Yao E. Kovach, Maria C. Garcia, John E. Foster
Summary: This study aims to elucidate the nature of plasma self-organization through experimental research on the patterns formed on liquid anode surfaces with 13 different electrolytes. The observed pattern characteristic length scales ranged from 2 to 13 mm and typically increased with current, with complex self-organized patterns observed that have not been reported to date. The parameters associated with pattern formation and morphology complexity are discussed and summarized.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Qianhan Han, Ying Guo, Yarong Zhang, Jing Zhang, Jianjun Shi
Summary: In this experimental study, a plasma plume generated by radio frequency atmospheric pressure glow discharge was enhanced in terms of length and intensity by pulsed discharge. The enhanced plume was used to improve the O/C ratio of carbon fiber.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Analytical
Krzysztof Greda, Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: For the first time, a dispersive micro-solid phase extraction (D-mu SPE) based on graphene oxide was used for the ultrasensitive determination of Cd. With this method, Cd can be efficiently extracted from a mixture of alkali and alkaline earth metals without the need for an elution step. The combination of D-mu SPE and SAGD OES significantly reduces matrix effects and improves the tolerance of Cd to alkali metals. The method shows simplicity in the measurement system and the commercially available nanosorbent used.
MICROCHEMICAL JOURNAL
(2024)
Article
Physics, Fluids & Plasmas
S. Eliseev
Summary: The problem of assessing apparent secondary emission coefficient based on electrical properties of DC glow discharges is revisited. Uncertainties resulting from errors in experimental data and model assumptions are analyzed. An estimation method based on a previously developed analytical model is suggested and demonstrated using an example of DC glow discharges in argon with copper electrodes.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2023)
Article
Spectroscopy
Jaime Orejas, Yinchenxi Zhang, Cristian Soto-Gancedo, Luis Javier Fernandez-Menendez, Jorge Pisonero, Nerea Bordel
Summary: The Solution-Cathode Glow Discharge (SCGD) is a plasma source that provides simplicity and low consumption for elemental analysis. When combined with Optical Emission Spectrometry (OES), it can achieve ng/mL limits of detection for multiple elements. This study focuses on fundamental plasma diagnostics of SCGD and investigates how dissolved ions in the sample solution affect the performance of the analysis.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2023)
Review
Physics, Applied
Fumiyoshi Tochikubo, Atsushi Komuro
Summary: Research and development using various atmospheric-pressure non-equilibrium plasmas have been energetically conducted over the past two decades. Precise understanding of the physics and chemistry of atmospheric-pressure non-equilibrium plasmas is essential for further development in various applications.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Fluids & Plasmas
Yuri Akishev, Anton Balakirev, Michail Grushin, Vladimir Karalnik, Igor Kochetov, Anatoly Napartovich, Alexander Petryakov, Nikolay Trushkin
IEEE TRANSACTIONS ON PLASMA SCIENCE
(2015)
Article
Physics, Fluids & Plasmas
Yu Akishev, F. Arefi-Khonsari, A. Demir, M. Grushin, V. Karalnik, A. Petryakov, N. Trushkin
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2015)
Article
Engineering, Electrical & Electronic
V. N. Gorshkov, M. E. Grushin, E. G. Lariontsev, I. I. Saveliev, N. I. Khokhlov
QUANTUM ELECTRONICS
(2016)
Article
Engineering, Electrical & Electronic
Yu. Yu. Kolbas, M. E. Grushin, V. N. Gorshkov
QUANTUM ELECTRONICS
(2018)
Article
Biotechnology & Applied Microbiology
E. N. Kobzev, G. V. Kireev, Yu. A. Rakitskii, I. I. Martovetskaya, V. A. Chugunov, V. P. Kholodenko, M. V. Khramov, Yu. S. Akishev, N. I. Trushkin, M. E. Grushin
APPLIED BIOCHEMISTRY AND MICROBIOLOGY
(2013)
Article
Physics, Fluids & Plasmas
Yuri Akishev, Mikhail Grushin, Vladimir Karalnik, Alex Petryakov, Philippe Supiot, Nikolay Trushkin
IEEE TRANSACTIONS ON PLASMA SCIENCE
(2011)
Article
Physics, Fluids & Plasmas
Yuri Akishev, Nikolay Trushkin, Michail Grushin, Alexander Petryakov, Vladimir Karal'nik
IEEE TRANSACTIONS ON PLASMA SCIENCE
(2012)
Article
Physics, Applied
Yuri Akishev, Grigory Aponin, Anton Balakirev, Michail Grushin, Vladimir Karalnik, Alexander Petryakov, Nikolay Trushkin
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2013)
Article
Physics, Applied
Yu Akishev, G. Aponin, A. Balakirev, M. Grushin, A. Petryakov, V. Karal'nik, N. Trushkin
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2013)
Article
Physics, Applied
V. F. Kopiev, Y. S. Akishev, I. V. Belyaev, N. K. Berezhetskaya, V. A. Bityurin, G. A. Faranosov, M. E. Grushin, A. I. Klimov, V. A. Kopiev, I. A. Kossyi, I. A. Moralev, N. N. Ostrikov, M. I. Taktakishvili, N. I. Trushkin, M. Yu Zaytsev
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2014)
Article
Physics, Fluids & Plasmas
A. N. Trushkin, M. E. Grushin, I. V. Kochetov, N. I. Trushkin, Yu. S. Akishev
PLASMA PHYSICS REPORTS
(2013)
Article
Physics, Applied
Elena Sysolyatina, Andrey Mukhachev, Maria Yurova, Michael Grushin, Vladimir Karalnik, Alexander Petryakov, Nikolay Trushkin, Svetlana Ermolaeva, Yuri Akishev
PLASMA PROCESSES AND POLYMERS
(2014)
Article
Physics, Fluids & Plasmas
Yuri Akishev, Gregory Aponin, Anton Balakirev, Mikhail Grushin, Vladimir Karalnik, Alexander Petryakov, Nikolay Trushkin
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2011)
Article
Physics, Fluids & Plasmas
Yu Akishev, G. Aponin, A. Balakirev, M. Grushin, V. Karalnik, A. Petryakov, N. Trushkin
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2013)
Article
Physics, Fluids & Plasmas
Yu S. Akishev, A. A. Balakirev, M. E. Grushin, V. B. Karalnik, M. A. Medvedev, A. Petryakov, N. Trushkin
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2020)