najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2018-9-4-491-495najo-721Research ArticleCHEMISTRY AND MATERIAL SCIENCEХИМИЯ И МАТЕРИАЛОВЕДЕНИЕInvestigation of the possibility for reducing agglomeration of aerosol nanoparticles by using the needle-plate corona chargerEfimovA. A.

141700 Dolgoprudny, Institutskiy per., 9

newaldan@gmail.comArsenovP. V.

141700 Dolgoprudny, Institutskiy per., 9

IvanovV. V.

141700 Dolgoprudny, Institutskiy per., 9

Moscow Institute of Physics and TechnologyRussian Federation20181308202594491495Copyright © Efimov A.A., Arsenov P.V., Ivanov V.V., 20252025Efimov A.A., Arsenov P.V., Ivanov V.V.Efimov A.A., Arsenov P.V., Ivanov V.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/721

The results of the research are given to show the possibility of reducing the agglomeration of aerosol nanoparticles using the needle-plate corona charger. It has been found that the charger fulfills the functions of an electrofilter-separator, precipitating large particles of agglomerates at a size more than 250 nm, leaving smaller non-agglomerated particles in the flow. Using the developed charger allows us to significantly reduce the agglomeration of particles at sufficiently low aerosol flow rates. As a result of changing the parameters of the charger (corona discharge current from 35 to 215 µA, aerosol flow through the charger from 33 to 250 l/min and the corona polarity), the mean particle size decreases more than in 1.5-fold.

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The authors declare that there are no conflicts of interest present.