scholarly journals Dielectric Barrier Discharge Plasma-Assisted Catalytic CO2 Hydrogenation: Synergy of Catalyst and Plasma

Catalysts ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 66
Author(s):  
Xingyuan Gao ◽  
Jinglong Liang ◽  
Liqing Wu ◽  
Lixia Wu ◽  
Sibudjing Kawi
Keyword(s):  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Value Added ◽  
High Energy ◽  
Co2 Hydrogenation ◽  
Dbd Plasma ◽  
Dielectric Barrier ◽  
Whole Process ◽  
Barrier Discharge Plasma ◽  
Poor Stability

CO2 hydrogenation is an effective way to convert CO2 to value-added chemicals (e.g., CH4 and CH3OH). As a thermal catalytic process, it suffers from dissatisfactory catalytic performances (low conversion/selectivity and poor stability) and high energy input. By utilizing the dielectric barrier discharge (DBD) technology, the catalyst and plasma could generate a synergy, activating the whole process in a mild condition, and enhancing the conversion efficiency of CO2 and selectivity of targeted product. In this review, a comprehensive summary of the applications of DBD plasma in catalytic CO2 hydrogenation is provided in detail. Moreover, the state-of-the-art design of the reactor and optimization of reaction parameters are discussed. Furthermore, several mechanisms based on simulations and experiments are provided. In the end, the existing challenges of this hybrid system and corresponding solutions are proposed.

scholarly journals Polymerization of D-Ribose in Dielectric Barrier Discharge Plasma

Plasma ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 144-149 ◽  
Author(s):  
Yingying Li ◽  
Rida Atif ◽  
Ketao Chen ◽  
Jiushan Cheng ◽  
Qiang Chen ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Discharge Plasma ◽  
Barrier Discharge ◽  
Laser Desorption ◽  
Laser Desorption Ionization ◽  
Dielectric Barrier Discharge Plasma ◽  
Dbd Plasma ◽  
Dielectric Barrier ◽  
Ionization Time ◽  
Barrier Discharge Plasma

Dielectric barrier discharge (DBD) plasma has been found to uniquely polymerize ribose that is not usually subject to polymerization since molecules that tend to polymerize almost always possess at least a π-bond. The polymer was analyzed via nuclear magnetic resonance (NMR) spectra, matrix-assisted laser desorption ionization time-of-flight (MALDI TOF) mass spectroscopy and Fourier-Transform inferred spectroscopy (FTIR), and it was found that dehydration occurs during polymerization.

Significant signal enhancement of dielectric barrier discharge plasma induced vapor generation by using non-ionic surfactants for determination of mercury and cadmium by atomic fluorescence spectrometry

2016 ◽  
Vol 31 (2) ◽  
pp. 383-389 ◽  
Author(s):  
Yixiao Li ◽  
Zhenli Zhu ◽  
Hongtao Zheng ◽  
Lanlan Jin ◽  
Shenghong Hu
Keyword(s):  
Dielectric Barrier Discharge ◽  
Discharge Plasma ◽  
Barrier Discharge ◽  
Ionic Surfactants ◽  
Atomic Fluorescence Spectrometry ◽  
Dielectric Barrier Discharge Plasma ◽  
Vapor Generation ◽  
Dbd Plasma ◽  
Dielectric Barrier ◽  
Barrier Discharge Plasma

Non-ionic surfactants (NISs) were used to improve the performance of dielectric barrier discharge plasma induced vapor generation (DBD plasma-CVG).

Surface Modification of Polypropylene Melt Blown Non-Woven Using Atmospheric Pressure Dielectric Barrier Discharge Plasma

2010 ◽  
Vol 42 ◽  
pp. 228-231 ◽  
Author(s):  
Yan Zhang ◽  
Yin Ding Lv
Keyword(s):  
Dielectric Barrier Discharge ◽  
Atmospheric Pressure ◽  
Barrier Discharge ◽  
Treatment Time ◽  
Woven Fabric ◽  
Dbd Plasma ◽  
Water Contact ◽  
Dielectric Barrier ◽  
Barrier Discharge Plasma ◽  
Plasma Treatment Time

In this paper, polypropylene (PP) melt blown non-woven fabric is treated by atmospheric pressure N2 or N2/CO2 dielectric barrier discharge (DBD) plasma. The variation of the surface hydrophilicity of PP sample is experimentally investigated by surface water contact angle, Fourier transform infrared reflectance spectroscopy (FTIR-ATR). The results show that the hydrophilicity of PP sample is considerably improved as long as the very short plasma treatment time (several seconds). However, the treatment effect of atmospheric N2/CO2 plasma is worse than that of atmospheric N2 plasma.

scholarly journals Emerging techniques in food science: the resistance of chlorpyrifos pesticide pollution against arc and dielectric barrier discharge plasma

2020 ◽  
Vol 12 (SP1) ◽  
pp. 9-17
Author(s):  
Mohsen Gavahian ◽  
Tsai Meng‐Jen ◽  
Amin Mousavi Khaneghah
Keyword(s):  
Dielectric Barrier Discharge ◽  
High Resistance ◽  
Barrier Discharge ◽  
Dbd Plasma ◽  
Water And Wastewater Treatment ◽  
General Belief ◽  
Dielectric Barrier ◽  
Pesticide Pollution ◽  
Hazardous Chemical ◽  
Barrier Discharge Plasma

Many studies introduced cold plasma as a novel and effective processing technology for microbial decontamination of food and water as well as for the removal of environmental pollution such as pesticide. However, as there are several types of plasma designs, their efficacy in degrading major pesticide residues, such as chlorpyrifos (as a hazardous chemical), should be explored. This study was conducted to assess the decontamination efficacy of 8 min of arc and dielectric barrier discharge (DBD) plasma on chlorpyrifos pesticide-water samples at a con-centration of 2 mg·L-1. The plasma-treated samples were assessed by liquid chromatography-mass spectrometry (LC-MS) and compared with the control (untreated) sample. In addition, the effects of plasma processes on some physical properties of samples were studied. According to the results, plasma-treated samples showed similar physical characteristics (e.g., refractive index and color values) to those of the untreated samples. While the temperature of the samples remained steady during the DBD plasma treatment, arc plasma changed the temperature of the sample at a rate of about 3.75°C·min–1 and yielded a sample with a final temperature of 60°C. However, contrary to the general belief that plasma is an efficient technique for pesticide degradation, chemical analyses showed high resistance of chlorpyrifos against both arc and DBD plasma under the conditions used in the present study. Therefore, the possibility of high resistance of pesticide pollution to this emerging technology should be considered. Also, further studies on the efficiency of the selected plasma system for removing pesticide pollution (e.g., during water and wastewater treatment) at industrial scale is needed.

scholarly journals Polymerization of Solid-State Aminophenol to Polyaniline Derivative Using a Dielectric Barrier Discharge Plasma

Plasma ◽  
2020 ◽  
Vol 3 (4) ◽  
pp. 187-195
Author(s):  
Ketao Chen ◽  
Meijuan Cao ◽  
Eileen Feng ◽  
Karl Sohlberg ◽  
Hai-Feng Ji
Keyword(s):  
Solid State ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Dbd Plasma ◽  
Simple Method ◽  
Dielectric Barrier ◽  
Vis Spectroscopy ◽  
Barrier Discharge Plasma ◽  
Kinetics Of ◽  
Keto Derivative

We present a method to prepare polyaminophenol from solid-state aminophenol monomers using atmospheric dielectric barrier discharge (DBD) plasma. The polymerizations of o-aminophenol and m-aminophenol are studied. The polymers were analyzed via Fourier-Transform inferred spectroscopy (FTIR) and ultraviolet-visible (UV-vis) spectroscopy. The kinetics of the polymerization reactions were investigated by using UV-vis and the polymerization was found to be first-order for both o-aminophenol and m-aminophenol. The resulting polymer film exhibits a conductivity of 1.0 × 10−5 S/m for poly-o-aminophenol (PoAP) and 2.3 × 10−5 S/m for poly-m-aminophenol (PmAP), which are two orders more conductive than undoped (~10−7 S/m) polyaniline (PANI), The PoAP has a quinoid structure and the PmAP has an open ring keto-derivative structure. The process provides a simple method of preparing conductive polyaminophenol films.

Research on Low Temperature Anodic Bonding Based on Interface Pretreatment of Dielectric Barrier Discharge Plasma

2015 ◽  
Vol 645-646 ◽  
pp. 356-361
Author(s):  
Ming Qiang Pan ◽  
Lin Ning Sun ◽  
Yang Jun Wang ◽  
Ji Zhu Liu ◽  
Tao Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Bonding Temperature ◽  
Anodic Bonding ◽  
Experimental Result ◽  
Dbd Plasma ◽  
Intimate Contact ◽  
Dielectric Barrier ◽  
Barrier Discharge Plasma

A simple composite bonding that combines dielectric barrier discharge (DBD) plasma activation with anodic bonding has been developed to achieve strong silicon/glass bonding at low temperature. The realization of low temperature bonding is attributed to enhance the hydrophilicity and smooth of silicon and glass surfaces and form lots of free radical after the DBD plasma (including-OH, -H, O, and heat) reacts with the interfaces. And these further reduce the difficulty of chemical bond switching, and improve the speed of the intimate contact formation. The experimental result show that the bonding temperature strongly decreased 100°C by using composite anodic bonding with DBD pretreatment which strength kept constant, and 10MPa bonding strength was obtained at 250°C/900V after the bonding interface was treated for 10s under the conditions of AC1.5KV/25KHz and the clearance 100μm.

scholarly journals Antioxidant Effects of Anthocyanin-Rich Riceberry™ Rice Flour Prepared Using Dielectric Barrier Discharge Plasma Technology on Iron-Induced Oxidative Stress in Mice

Molecules ◽  
2021 ◽  
Vol 26 (16) ◽  
pp. 4978
Author(s):  
Natwalinkhol Settapramote ◽  
Niramon Utama-ang ◽  
Touchwin Petiwathayakorn ◽  
Kornvipa Settakorn ◽  
Saovaros Svasti ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Thiobarbituric Acid ◽  
Rice Flour ◽  
The Body ◽  
Plasma Technology ◽  
Dbd Plasma ◽  
Dielectric Barrier ◽  
Barrier Discharge Plasma

Redox-active iron generates reactive oxygen species that can cause oxidative organ dysfunction. Thus, the anti-oxidative systems in the body and certain dietary antioxidants, such as anthocyanins, are needed to control oxidative stress. We aimed to investigate the effects of dielectric barrier discharge (DBD) plasma technology in the preparation of Riceberry™ rice flour (PRBF) on iron-induced oxidative stress in mice. PRBF using plasma technology was rich in anthocyanins, mainly cyanidine-3-glucoside and peonidine-3-glucoside. PRBF (5 mg AE/mg) lowered WBC numbers in iron dextran (FeDex)-loaded mice and served as evidence of the reversal of erythrocyte superoxide dismutase activity, plasma total antioxidant capacity, and plasma and liver thiobarbituric acid-reactive substances in the loading mice. Consequently, the PRBF treatment was observed to be more effective than NAC treatment. PRBF would be a powerful supplementary and therapeutic antioxidant product that is understood to be more potent than NAC in ameliorating the effects of iron-induced oxidative stress.

Study of the Boundary Layer on a Plate Aerodynamically Induced by Multiple DBD Plasma Based on PIV

2013 ◽  
Vol 421 ◽  
pp. 163-167
Author(s):  
Feng Li ◽  
Chao Gao ◽  
Bo Rui Zheng ◽  
Yu Shuai Wang
Keyword(s):  
Boundary Layer ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Plasma Actuators ◽  
Dbd Plasma ◽  
Dielectric Barrier ◽  
Flow Acceleration ◽  
Plasma Actuation ◽  
Barrier Discharge Plasma ◽  
Layer Flow

The boundary layer aerodynamic flow acceleration with one atmosphere uniform induced by multiple dielectric-barrier-discharge plasma actuation were studied based on PIV. Through double actuators alternating discharge, the multiple dielectric barrier discharge mode have been proposed and tested. The efficiencies of the plasma actuators in Pulsed-pulsed, Steady-steady, Pulsed-steady and Steady-pulsed discharge modes were explored. Based on the above results, the boundary layer flow acceleration performance of multiple plasma actuators has been discussed and the more efficient discharge pattern has been proposed. The results of this study indicate that the airflow acceleration effect of multiple plasma actuators mainly occurs in paraelectric direction and the pulsed-pulsed is the more efficient multiple plasma actuation mode.

scholarly journals A Review of Recent Advances of Dielectric Barrier Discharge Plasma in Catalysis

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1428 ◽  
Author(s):  
Ju Li ◽  
Cunhua Ma ◽  
Shengjie Zhu ◽  
Feng Yu ◽  
Bin Dai ◽  
...  
Keyword(s):  
Dielectric Barrier Discharge ◽  
Discharge Plasma ◽  
Barrier Discharge ◽  
Synergistic Effects ◽  
High Energy ◽  
Dielectric Barrier Discharge Plasma ◽  
Plasma Technology ◽  
Dielectric Barrier ◽  
Recent Advances ◽  
Barrier Discharge Plasma

Dielectric barrier discharge plasma is one of the most popular methods to generate nanthermal plasma, which is made up of a host of high-energy electrons, free radicals, chemically active ions and excited species, so it has the property of being prone to chemical reactions. Due to these unique advantages, the plasma technology has been widely used in the catalytic fields. Compared with the conventional method, the heterogeneous catalyst prepared by plasma technology has good dispersion and smaller particle size, and its catalytic activity, selectivity and stability are significantly improved. In addition, the interaction between plasma and catalyst can achieve synergistic effects, so the catalytic effect is further improved. The review mainly introduces the characteristics of dielectric barrier discharge plasma, development trend and its recent advances in catalysis; then, we sum up the advantages of using plasma technology to prepare catalysts. At the same time, the synergistic effect of plasma technology combined with catalyst on methanation, CH4 reforming, NOx decomposition, H2O2 synthesis, Fischer–Tropsch synthesis, volatile organic compounds removal, catalytic sterilization, wastewater treatment and degradation of pesticide residues are discussed. Finally, the properties of plasma in catalytic reaction are summarized, and the application prospect of plasma in the future catalytic field is prospected.

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