TY - JOUR
T1 - Efficient and Selectable Production of Reactive Species Using a Nanosecond Pulsed Discharge in Gas Bubbles in Liquid
AU - Dai, Xiujuan J.
AU - Corr, Cormac S.
AU - Ponraj, Sri B.
AU - Maniruzzaman, Mohammad
AU - Ambujakshan, Arun T.
AU - Chen, Zhiqiang
AU - Kviz, Ladge
AU - Lovett, Robert
AU - Rajmohan, Gayathri D.
AU - De Celis, David R.
AU - Wright, Marion L.
AU - Lamb, Peter R.
AU - Krasik, Yakov E.
AU - Graves, David B.
AU - Graham, William G.
AU - D'Agostino, Riccardo
AU - Wang, Xungai
N1 - Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2016/3/1
Y1 - 2016/3/1
N2 - A plasma gas bubble-in-liquid method for high production of selectable reactive species using a nanosecond pulse generator has been developed. The gas of choice is fed through a hollow needle in a point-to-plate bubble discharge, enabling improved selection of reactive species. The increased interface reactions, between the gas-plasma and water through bubbles, give higher productivity. H2O2 was the predominant species produced using Ar plasma, while predominantly NO3- and NO2 were generated using air plasma, in good agreement with the observed emission spectra. This method has nearly 100% selectivity for H2O2, with seven times higher production, and 92% selectivity for NO3-, with nearly twice the production, compared with a plasma above the water. A plasma gas bubble-in-liquid, with chosen gas, method is described. The gas of choice enables improved selection of reactive species and increased interface reactions enable higher productivity. "Ar" plasma produces a high concentration of H2O2, while "air" plasma produces high concentrations ofNO3- and NO2. The selectivity and productivity are much higher than with a plasma created above liquid.
AB - A plasma gas bubble-in-liquid method for high production of selectable reactive species using a nanosecond pulse generator has been developed. The gas of choice is fed through a hollow needle in a point-to-plate bubble discharge, enabling improved selection of reactive species. The increased interface reactions, between the gas-plasma and water through bubbles, give higher productivity. H2O2 was the predominant species produced using Ar plasma, while predominantly NO3- and NO2 were generated using air plasma, in good agreement with the observed emission spectra. This method has nearly 100% selectivity for H2O2, with seven times higher production, and 92% selectivity for NO3-, with nearly twice the production, compared with a plasma above the water. A plasma gas bubble-in-liquid, with chosen gas, method is described. The gas of choice enables improved selection of reactive species and increased interface reactions enable higher productivity. "Ar" plasma produces a high concentration of H2O2, while "air" plasma produces high concentrations ofNO3- and NO2. The selectivity and productivity are much higher than with a plasma created above liquid.
KW - nanosecond
KW - plasma in liquid
KW - pulsed discharges
KW - reactive species
KW - selectivity
UR - https://www.scopus.com/pages/publications/84947983450
U2 - 10.1002/ppap.201500156
DO - 10.1002/ppap.201500156
M3 - Journal article
AN - SCOPUS:84947983450
SN - 1612-8850
VL - 13
SP - 306
EP - 310
JO - Plasma Processes and Polymers
JF - Plasma Processes and Polymers
IS - 3
ER -