Plasma Sci. Technol., 2019 21(4) Published: 28 February 2019 Previous Issue Next Issue
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Kefeng SHANG (商克峰) 1, Jie LI (李杰) 1 and Rino MORENT 2
Plasma Sci. Technol. 2019, 21(4): 043001; doi: 10.1088/2058-6272/aafbc6
Abstract ( 105) PDF (730KB) ( 362 )
Electric discharge plasma (EDP) can efficiently degrade aqueous pollutants by its in situ generated strong oxidative species (·OH, ·O, H2O2, O3, etc) and other physiochemical effects (UV irradiation, shockwaves, local high temperature, etc), but a high energy consumptions limit the application of EDP in water treatment. Some adsorbent... -
Hysteresis characteristics of the initiating and extinguishing boundaries in a nanosecond pulsed DBDJingfeng TANG (唐井峰), Miao TANG (唐邈), Desheng ZHOU (周德胜), et al.
Plasma Sci. Technol. 2019, 21(4): 044001; doi: 10.1088/2058-6272/aafbdb
Abstract ( 94) PDF (1134KB) ( 171 )
The dielectric barrier discharge (DBD) is presently used in many fields, including plasma medicine, surface modification, and ozone synthesis; the influence of airflow on the DBD is a widely investigated topic. In this work, a hysteresis characteristic on the initiating and extinguishing boundaries is observed in a nanosecond pulsed DBD, which is s... -
Runhui WU (邬润辉) 1, Song CHAI (柴忪) 1, Jiaqi LIU (刘佳琪) 1, et al.
Plasma Sci. Technol. 2019, 21(4): 044002; doi: 10.1088/2058-6272/aafbc7
Abstract ( 71) PDF (2064KB) ( 191 )
Alkali metal DC arc discharge has the characteristics of easy ionization, low power consumption, high plasma temperature and ionization degree, etc, which can be applied in aerospace vehicles in various ways. In this paper, we calculate the physical property parameters of lithium vapor, one of the major alkali metals, and analyze the discharge char... -
Dian ZHANG (张点), Jun ZHANG (张军), Song LI (李嵩), et al.
Plasma Sci. Technol. 2019, 21(4): 044003; doi: 10.1088/2058-6272/aafbc3
Abstract ( 71) PDF (2263KB) ( 163 )
To satisfy the demands for compact, inexpensive terahertz (THz) sources with power of hundreds of watts, a radial sheet beam THz source which does not require an external magnetic field and is driven by a radial pseudospark discharge plasma electron gun (PSDP-EGUN) is proposed. Radial design has been used in pseudospark switches, but in this paper ... -
Weiwei XU (徐卫卫), Xiuling ZHANG (张秀玲), Mengyue DONG (董梦悦), et al.
Plasma Sci. Technol. 2019, 21(4): 044004; doi: 10.1088/2058-6272/aaf9d2
Abstract ( 107) PDF (1058KB) ( 162 )
As an important type of metal–organic framework (MOF), Zr-MOF shows excellent CO2 adsorption performance. In this work, a Zr-MOF was synthesized by a solvothermal method and adopted to support Ru through simple incipient-wetness impregnation. Then the Ru/Zr-MOF was applied for CO2 hydrogenation (VH2 : VCO2= 4:1) with the assistanc... -
Pan LU 1,2, Dong-Wook KIM 1,2 and Dong-Wha PARK 1,2
Plasma Sci. Technol. 2019, 21(4): 044005; doi: 10.1088/2058-6272/aaeada
Abstract ( 94) PDF (2373KB) ( 187 )
Atmospheric pressure plasma technology is gaining increasing importance because it is a simple and tunable synthesis process for the production of metallic nanoparticles. In addition to the development of the power supply, improving the reactor is also one of the main strategies to enhance the utility. In this study, a simple reactor for the gas&nd... -
Tao ZHU (竹涛) 1,2,4, Wenjing BIAN (边文璟) 2, Mingfeng MA (马名烽) 2, et al.
Plasma Sci. Technol. 2019, 21(4): 044006; doi: 10.1088/2058-6272/aaead7
Abstract ( 86) PDF (2102KB) ( 155 )
In this paper, narrow-pulse power discharge is used to study the synergistic control of mercury and dioxins, in which 1,2,4-trichlorobenzene (TCB) was used as a dioxin analog, by using a self- designed experimental system. The competitive effects of NO, SO2 and HCl on the TCB removal by non-thermal plasma are discussed. The influence of acid gas on... -
Victor TARASENKO 1,2, Dmitry BELOPLOTOV 1, Mikhail LOMAEV 1,2
Plasma Sci. Technol. 2019, 21(4): 044007;
Abstract ( 74) PDF (3828KB) ( 154 )
The effect of air pressure (12.5, 25, 50, and 100 kPa) on the generation of runaway electron beams in a non-uniform electric field when applying voltage pulses (≈35 kV) with a rise time of ≈200 ns has been studied. The results show that the discharge has various stages: streamer, diffuse, and spark. Initially, a wide streamer develops i... -
Measurement and analysis of the extreme ultraviolet emission band of laser-produced antimony plasmasShiquan CAO (曹世权), Maogen SU (苏茂根), Qi MIN (敏琦), et al.
Plasma Sci. Technol. 2019, 21(4): 045001; doi: 10.1088/2058-6272/aaf7dc
Abstract ( 78) PDF (952KB) ( 99 )
The temporal evolution of extreme ultraviolet (EUV) emission spectra of laser-produced antimony (Sb) plasmas has been measured in the 7–16 nm wavelength region using spatio- temporally resolved lase-produced plasma spectroscopy technique. The spectral profiles involve an intense quasi-continuous band with superimposed intense characteristic r... -
Dongao LI (李东澳), Liping ZHANG (张丽萍) and Hongmei DU (杜洪梅)
Plasma Sci. Technol. 2019, 21(4): 045002; doi: 10.1088/2058-6272/aaf874
Abstract ( 68) PDF (458KB) ( 106 )
In this paper, the Dyakonov–Shur instability of terahertz (THz) plasma waves has been analyzed in gated cylindrical field effect transistor (FET). In the cylindrical FET, the hydrodynamic equations in cylindrical coordinates are used to describe the THz plasma wave in two- dimensional electronic gas. The research results show that the oscilla... -
Liuxiu HE (何柳秀) 1, Minghai LIU (刘明海) 2,3 and Shuangyun ZHAO (赵双云) 1
Plasma Sci. Technol. 2019, 21(4): 045101; doi: 10.1088/2058-6272/aaf78d
Abstract ( 40) PDF (775KB) ( 77 )
The multipolar magnetic field structure is investigated by the momentum conservation equation with self-consistent 3D sheared flows during transition of plasma properties from local paramagnetic to diamagnetic fields. Numerical results show that the traditional poloidal magnetic field (BP) is one part of equilibrium magnetic fields. The non-zero-or... -
Nureli YASEN 1, Yajuan HOU (侯雅娟) 1, Li WANG (王莉) 1, et al.
Plasma Sci. Technol. 2019, 21(4): 045201; doi: 10.1088/2058-6272/aaf7cf
Abstract ( 72) PDF (1090KB) ( 72 )
A special method is proposed of a laser-induced cavity pressure acceleration scheme for collimating, accelerating and guiding protons, using a single-cone target with a beam collimator through a target normal sheath acceleration mechanism. In addition, the problems involved are studied by using two-dimensional particle-in-cell simulations. The resu... -
Monzurul K AHMED and Om P SAH
Plasma Sci. Technol. 2019, 21(4): 045301; doi: 10.1088/2058-6272/aaf20f
Abstract ( 60) PDF (919KB) ( 101 )
Propagation of solitary kinetic Alfvén waves (KAWs) is investigated in small but finite β (particle-to-magnetic pressure ratio) collisionless dense plasma whose constituents are nondegenerate warm ions, and relativistic degenerate electrons and positrons. Through the use of reductive perturbation technique, Kortweg–de Vries e... -
Yaroslav MURZAEV, Gennadii LIZIAKIN, Andrey GAVRIKOV, et al.
Plasma Sci. Technol. 2019, 21(4): 045401; doi: 10.1088/2058-6272/aaf250
Abstract ( 50) PDF (858KB) ( 94 )
A cold floating probe method was compared with the emissive floating probe method in terms of a low-pressure radio-frequency inductive discharge. The dependences of difference between the plasma potential and the floating potential on the electron temperature 1–8 eV, plasma density 109 –1012 cm−3 and magnetic field 100–650 G... -
Jian CHEN (陈坚), Tianzuo FU (付天佐), Heng GUO (郭恒), et al.
Plasma Sci. Technol. 2019, 21(4): 045402; doi: 10.1088/2058-6272/aaf884
Abstract ( 44) PDF (1601KB) ( 102 )
In this paper, a one-dimension particle-in-cell (PIC) code (EDIPIC) is employed to simulate the parallel-plate ion extraction process under an externally applied electrostatic field, focusing on the analysis of the influence of the initial electron temperature on the extracted ion fluxes to the metal plates during the ion extraction process. Com... -
Bin WU (武斌) 1,4, Chao GAO (高超) 1, Feng LIU (刘峰) 2, et al.
Plasma Sci. Technol. 2019, 21(4): 045501; doi: 10.1088/2058-6272/aaf2e2
Abstract ( 57) PDF (1459KB) ( 90 )
Abstract It is a very difficult task to develop a method of reducing turbulent boundary layer drag. However, in recent years, plasma flow control technology has demonstrated huge potential in friction drag reduction. To further investigate this issue, a smooth plate model was designed as a testing object arranged with a bidirectional dielectric-bar... -
Hui LIU (刘辉) 1, Xiang NIU (牛翔) 1, Huan WU (伍环) 2, et al.
Plasma Sci. Technol. 2019, 21(4): 045502; doi: 10.1088/2058-6272/aaf674
Abstract ( 84) PDF (1340KB) ( 104 )
Previous studies have shown that leak electrons in cusped field thrusters can move along the channel axis to the anode after crossing the magnetic cusp on the exit. In this paper, a one- dimensional fluid model is built along two typical electron paths to study the influence of leak electrons on the discharge characteristics of a cusped field thrus... -
R DEBEK 1,2, D WIERZBICKI 2,3, M MOTAK 2, et al.
Plasma Sci. Technol. 2019, 21(4): 045503; doi: 10.1088/2058-6272/aaf759
Abstract ( 64) PDF (3377KB) ( 96 )
CO2 adsorption on the surface of hydrotalcite-derived mixed oxide catalysts was investigated under low pressure glow discharge plasma in operando conditions via FT-IR spectroscopy. Nickel catalysts were promoted with various transition metal species (Ce, Fe, La, Zr) to influence their physico-chemical properties. Fe and Zr species were successfully... -
D C SEOK, S R YOO, K I LEE, et al.
Plasma Sci. Technol. 2019, 21(4): 045504; doi: 10.1088/2058-6272/aaf9e9
Abstract ( 67) PDF (1087KB) ( 89 )
Sintered silicon carbide (SiC) was etched by a dielectric barrier discharge source. A high voltage bipolar pulse was used with helium gas for the plasma generation. One stable filament plasma was generated and could be used for SiC etching. As the processing gas (NF3) mixing rate increased, the width and depth of the etching profile became narrower... -
M Serhan YILDIZ 1 and Murat CELIK 2
Plasma Sci. Technol. 2019, 21(4): 045505; doi: 10.1088/2058-6272/aaf280
Abstract ( 63) PDF (3101KB) ( 82 )
This study presents the Langmuir and Faraday probe measurements conducted to determine the plume characteristics of the BUSTLab microwave electrothermal thruster (MET). The thruster, designed to operate at 2.45 GHz frequency, is run with helium, argon and nitrogen gases as the propellant. For the measurements, the propellant volume flow rate and th... -
Yan WANG (王艳) 1,2, Zhimin LIU (刘智民) 1,2, Lizhen LIANG (梁立振) 1, et al.
Plasma Sci. Technol. 2019, 21(4): 045601; doi: 10.1088/2058-6272/aaf592
Abstract ( 77) PDF (866KB) ( 91 )
Optical emission spectroscopy (OES) using the trace rare gases of Ar and Xe have been carried out in a radio frequency (RF) driven negative ion source at Institute of Plasma Physics, Chinese Academy of Science (ASIPP), in order to determine the electron temperature and density of the hydrogen plasma. The line-ratio methods based on population model...
