Article
Spectroscopy
Tyler J. Williams, R. Kenneth Marcus
Summary: The study presented an integrated, single electrode design for LS-APGD system to reduce system components and simplify the ionization source. By optimizing operational parameters, maintaining stable plasma, improving analytical performance, and comparing with the previous design, it demonstrated higher sensitivity in detecting Rb, Ag, Tl, and U under optimal conditions.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Article
Materials Science, Multidisciplinary
Shih-Chen Shi, Po-Wei Huang, Jason Hsiao-Chun Yang
Summary: A newly developed method for preparing large-scale transparent conductive zinc oxide films was successfully demonstrated, showcasing the potential for large-scale synthesis by lowering the preparation temperature and improving the quality of coatings under atmospheric conditions.
Article
Physics, Applied
Li Wu, Xianyu Zhang, Tao Liu, Wencong Zhang, Junwu Tao, Fei Cheng
Summary: This Letter presents an atmospheric pressure low power microwave-induced air plasma source operating at 2.45 GHz. The device can self-ignite air and generate plasma with only 50 W microwave input power, without any additional trigger. Its sustaining power is as low as 10 W, and the gas temperature of plasma tail flame is about 32 degrees C measured by a fiber optic thermometer. Spectroscopic measurements revealed the presence of strong OH(A(2)S(+)? X-2?) bands at 306-310 nm and oxygen atomic lines O-I (3p5P? 3s5S) at 777.1 nm and O-I (3p3P?3s3S) at 844.6 nm. Furthermore, NO- ?(A(2)S(+)?X-2?(r)) from 200 to 300 nm was also detected in the air plasma jet. This portable plasma apparatus shows potential for air plasma applications in the biomedical fields.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Daecheon Lim, Nazim Uddin, Sangjo Choi, Dongyeon Choi, Jun Choi
Summary: This paper proposes dual microwave-excited atmospheric-pressure plasma jets (DME-APPJs) that can be generated with a single power source for surface treatments, showing more advanced performance compared to single ME-APPJs.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Applied
David Martinet, Sebastian Filliger, Alain Germanier, Gilbert Gugler, Christoph Ellert
Summary: This study presents the development of a small array of plasma cells for cleaning or treating workpieces under homogeneous conditions. The array consists of multiple individual plasma cells that can be operated independently and scaled up to a larger size. Experimental results demonstrate good ignition and control characteristics of the array.
PLASMA PROCESSES AND POLYMERS
(2023)
Article
Chemistry, Analytical
Geunyoung Nam, Muhwan Kim, Yeonsook Jang, Sungbo Cho
Summary: A cold atmospheric pressure microplasma pipette (CAPMP) has been developed for targeted disinfection, demonstrating effective antibacterial ability that depends on treatment time and the number of layers of covering material.
Article
Chemistry, Physical
Helena Nowakowska, Dariusz Czylkowski, Bartosz Hrycak, Mariusz Jasinski
Summary: A new type of microwave plasma source is introduced in this study, where plasma at atmospheric pressure is generated. Different configurations were studied in terms of electric field and power distribution, with the results showing that near-zero radiation reduction is possible for the closed configuration, while the radiated power to entering power ratio is always greater than 30% for other configurations.
Article
Physics, Multidisciplinary
Tariq Iqbal, Syeda Kalsoom Zahra, M. Abdul Rauf Khan, Muhammad Shafique, Syed Raza Ali Raza, Saiqa Andleeb
Summary: Zinc oxide nanostructures were successfully synthesized using a microplasma electrochemical technique in this study, and their morphological, structural, optical, and electrical properties were characterized. The results showed that the ZnO nanostructures exhibited high crystallinity, semiconductor behavior, and strong antibacterial and photocatalytic activities. This research contributes to the development of low-cost and effective materials for removing microorganisms and toxic industrial dyes, which pose a serious threat to terrestrial and aquatic ecosystems.
Article
Chemistry, Analytical
Shuang Liu, Xin-Xin Xue, Yong-Liang Yu, Jian-Hua Wang
Summary: The use of miniaturized optical emission spectrometry devices and activated carbon electrode tips allows for rapid preconcentration and quantitative analysis of heavy metals in water, significantly enhancing sensitivity and practicality.
ANALYTICAL CHEMISTRY
(2021)
Article
Physics, Fluids & Plasmas
Simon Kreuznacht, Marc Boeke, Volker von der Gathen
Summary: This study investigates a microplasma channel, revealing different discharge behaviors and ignition characteristics compared to microplasma arrays. The discharge expands in both height and width above the upper edge of the powered electrodes, exhibiting self-pulsing and wavelike ignition. The insights gained from this study will help understand the discharge behavior in microplasma arrays.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Article
Energy & Fuels
R. Rincon, J. Munoz, F. J. Morales-Calero, J. Orejas, M. D. Calzada
Summary: H2 can be produced from alcohol decomposition using plasma technology. Comparison between two plasma sources, TIAGO torch and Surfatron, showed that TIAGO torch outperforms Surfatron in terms of H2 production rate and energy efficiency.
Article
Engineering, Electrical & Electronic
Chengyu Yan, Juha Hassel, Visa Vesterinen, Jinli Zhang, Joni Ikonen, Leif Gronberg, Jan Goetz, Mikko Mottonen
Summary: The study presents an on-chip device based on a Josephson junction capable of coherent microwave emission, meeting the requirements for quantum-coherent operations. The characteristics of the device adhere to a perturbative theory based on a capacitively shunted Josephson junction, with low phase noise from the cryogenic microwave source resulting in infidelity lower than that caused by dephasing in superconducting qubits.
NATURE ELECTRONICS
(2021)
Article
Physics, Applied
Di Zhang, Sohaib Majzoub, Anis Allagui, Ahmed Elwakil
Summary: This study demonstrates the possibility of generating multiple parallel and independent random bitstreams from a atmospheric pressure air microplasma system, confirming the feasibility of this approach.
PLASMA PROCESSES AND POLYMERS
(2022)
Article
Engineering, Chemical
Wenjie Fu, Chaoyang Zhang, Xiaotong Guan, Xiaoyun Li, Yang Yan
Summary: An investigation of sterilization using a low-temperature microwave-generated atmospheric pressure plasma jet (MAPPJ) is presented. The study examined the effects of the plasma treatment on different bacteria and fungi, and found that the number of bacterial colonies was significantly reduced and almost eliminated after several minutes of treatment.
JOURNAL OF MICROWAVE POWER AND ELECTROMAGNETIC ENERGY
(2022)
Article
Physics, Applied
M. Bashir, S. Bashir, A. Javed, O. U. Noor
Summary: This study investigates the properties of an atmospheric pressure helium microplasma excited in a polydimethylsiloxane flow focusing microfluidic chip. The influence of input parameters on discharge characteristics is studied, and electron excitation and molecular rotational temperatures are determined. By utilizing plasma diagnostic techniques, the electron density and temperature are determined. The non-thermal equilibrium state of the microplasma is validated, and the plasma modified surface is successfully verified through the formation of an oil-in-water micro-emulsion.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Energy & Fuels
M. Wnukowski, A. W. van de Steeg, B. Hrycak, M. Jasinski, G. J. van Rooij
Summary: The study showed that adding hydrogen can increase methane conversion, acetylene and ethylene yield and selectivity in a microwave moderate pressure plasma reactor. It was also found to decrease the output of problematic soot-like products. This indicates that hydrogen addition is a simple yet effective method for enhancing selectivity in plasma reforming of methane.
Article
Multidisciplinary Sciences
Andrzej Sikora, Dariusz Czylkowski, Bartosz Hrycak, Magdalena Moczala-Dusanowska, Marcin Lapinski, Miroslaw Dors, Mariusz Jasinski
Summary: The experimental results show that the wettability of PMMA material was improved after argon plasma treatment, accompanied with changes in surface chemical composition and long-term improved wettability. Changes in surface roughness parameters were observed as well, but their dependence on the number of plasma scans is irregular.
SCIENTIFIC REPORTS
(2021)
Article
Energy & Fuels
Magdalena Budnarowska, Jerzy Mizeraczyk
Summary: This study presents a numerical analysis of the temporal and spatial evolution of the electromagnetic field in a shielding enclosure with aperture following transient interference by a subnanosecond high-energy pulse. The research illustrates the existence of two unknown phases - wave phase and interference phase - showcasing the long-lasting and challenging-to-assess impact on shielding effectiveness.
Article
Physics, Fluids & Plasmas
Helena Nowakowska, Dariusz Czylkowski, Bartosz Hrycak, Mariusz Jasinski
Summary: Numerical analysis was conducted on radiation from an unshielded microwave plasma source, with results showing that a torch with a shielding tube of 55mm radius can achieve over 95% radiated power ratio. Factors such as electron density, tube height and radius have an impact on reflected wave power, power absorbed in the plasma, radiated power and power entering the discharge.
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2021)
Editorial Material
Chemistry, Multidisciplinary
Miroslaw Dors
APPLIED SCIENCES-BASEL
(2021)
Article
Energy & Fuels
Magdalena Budnarowska, Szymon Rafalski, Jerzy Mizeraczyk
Summary: This study aimed to better understand the interaction of electromagnetic waves with metamaterials through virtual visualization. The researchers used CST Studio software to simulate and comprehensively model high-frequency electromagnetic fields and conducted virtual visualizations of the interaction of an electromagnetic plane wave with a split-ring resonator (SRR) metamaterial structure. The results confirmed the total reflection phenomenon of the electromagnetic plane wave on the SRR structure and also showed the transmission of the wave at a detuned frequency. These visualizations provide unique educational presentations for understanding the interaction of electromagnetic waves with SRR structures at different frequencies.
Article
Chemistry, Analytical
Jerzy Mizeraczyk, Ryszard Studanski, Andrzej Zak, Agnieszka Czapiewska
Summary: The study attempted to develop a reliable method for wireless underwater communication under non-line-of-sight conditions and tested in laboratory simulations. The results showed the effectiveness of the method for wireless data transmission in a hydroacoustic channel under NLOS conditions.
Article
Chemistry, Physical
Helena Nowakowska, Dariusz Czylkowski, Bartosz Hrycak, Mariusz Jasinski
Summary: A new type of microwave plasma source is introduced in this study, where plasma at atmospheric pressure is generated. Different configurations were studied in terms of electric field and power distribution, with the results showing that near-zero radiation reduction is possible for the closed configuration, while the radiated power to entering power ratio is always greater than 30% for other configurations.
Editorial Material
Chemistry, Multidisciplinary
Mariusz Jasinski
APPLIED SCIENCES-BASEL
(2022)
Review
Energy & Fuels
Sergii Bespalko, Jerzy Mizeraczyk
Summary: This paper reviews the progress of using plasma-driven solution electrolysis (PDSE) for hydrogen production and discusses the effects of various parameters on energy efficiency, energy yield, and hydrogen production rate. The results show that in the cathodic regime of PDSE, the hydrogen production rate and energy efficiency are significantly higher compared to the anodic regime.
Article
Energy & Fuels
Sergii Bespalko, Jerzy Mizeraczyk
Summary: The results of an experimental study on hydrogen production at a tungsten discharge electrode with negative polarity in the DC electrolysis of a typical 10 wt% Na2CO3 aqueous solution in three operational regimes (the Faradaic, transition, and plasma-driven solution electrolysis (PDSE)) are presented. The highest hydrogen production rate was achieved in the cathodic PDSE regime at the applied DC voltage of 198 V. However, the energy yield of hydrogen production in the PDSE regime was lower than that in the Faradaic regime. The energy balance analysis showed that most of the electrical energy consumed in the cathodic PDSE regime was spent on heating and evaporation of the electrolytic solution.
Article
Energy & Fuels
Magdalena Budnarowska, Jerzy Mizeraczyk, Kamil Bargiel
Summary: Due to the increased threat of high-power electromagnetic pulse attacks, there is a growing interest in metallic enclosures with high shielding effectiveness. However, necessary technological apertures in these enclosures can reduce their effectiveness. This paper presents numerical simulation results on the penetration and internal propagation of high-power electromagnetic pulses in an apertured enclosure, revealing the formation mechanism of the electromagnetic field inside the enclosure caused by the subnanosecond high-power pulse.
Editorial Material
Chemistry, Multidisciplinary
Mariusz Jasinski
APPLIED SCIENCES-BASEL
(2023)
Article
Multidisciplinary Sciences
Bartosz Hrycak, J. Mizeraczyk, D. Czylkowski, M. Dors, M. Budnarowska, M. Jasinski
Summary: This paper presents a microwave plasma-based technology for efficient hydrogen production from synthetic biogas. The experiment demonstrated that the waveguide-supplied metal cylinder-based microwave plasma source (MPS) could carry out the steam reforming of synthetic biogas without soot formation and microwave discharge extinction. It also introduced a new parameter, energy-CH4 feedstock consumption yield, to describe the MPS performance.
SCIENTIFIC REPORTS
(2023)
