Articles producció científica> Enginyeria Química

Monodisperse droplets and particles by efficient neutralization of electrosprays

  • Datos identificativos

    Identificador: imarina:9242301
    Handle: http://hdl.handle.net/20.500.11797/imarina9242301
  • Autores:

    Carrasco-Munoz A
    Barbero-Colmenar E
    Bodnár E
    Grifoll J
    Rosell-Llompart J
  • Otros:

    Autor según el artículo: Carrasco-Munoz A; Barbero-Colmenar E; Bodnár E; Grifoll J; Rosell-Llompart J
    Departamento: Enginyeria Química
    Autor/es de la URV: GRIFOLL TAVERNA, JORDI / Rosell Llompart, Joan
    Palabras clave: Size distribution Ring electrodes Polymer nanoparticles Polymer microparticles Nanoparticles Ion sources Gas phase ions Extraction Electrosprays Electrospray Electrohydrodynamics Electrohydrodynamic atomization Electrodes Electrical charges Electrical charge Electric corona Drops Droplets Droplet to particle Curcumin Corona discharges Corona discharge Cone-jet mode spray polymer particles polymer nanoparticles polymer microparticles generation gas phase ions electrospray electrohydrodynamic atomization electrical charge dynamic atomization drug droplet to particle curcumin coupling electrospray corona discharge charge reduction
    Resumen: We present a new approach for micro- and nanoparticle production by in-situ charge reduction of electrospray droplets, which prevents their Coulombic instabilities and allow the efficient transport (extraction) of the particles. A unipolar ion source based on corona discharge generates a controllable ion flux of opposite polarity to the electrospray. The ions are introduced axially into the spray, while the Taylor cone is screened from the ions by an extractor ring electrode. Efficient and steady droplet discharge and extraction through an orthogonal aerosol-extraction tube was attained when the inlet of the tube was near the spray emission and the ring electrode, resulting in dramatic changes in droplets’ trajectories. The best extraction conditions (highest filter collections) were associated with the best discharging (lowest residual electrical charge) and the most globular particles. The size distributions on the particles collected on the filters were monomodal and homogeneous, with small relative standard deviations (as small as 10.6%). The use of corona ions significantly expands the range of polymer concentrations over which globular particles with monomodal size distribution can be made by electrospray. © 2021 Elsevier Ltd
    Áreas temáticas: Química Pollution Meteorology & atmospheric sciences Mechanical engineering Materials science (miscellaneous) General materials science Fluid flow and transfer processes Environmental sciences Environmental engineering Environmental chemistry Engineering, mechanical Engineering, chemical Atmospheric science
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: joan.rosell@urv.cat
    Identificador del autor: 0000-0002-5288-9150
    Fecha de alta del registro: 2023-02-19
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S0021850221006352
    URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Journal Of Aerosol Science. 160
    Referencia de l'ítem segons les normes APA: Carrasco-Munoz A; Barbero-Colmenar E; Bodnár E; Grifoll J; Rosell-Llompart J (2022). Monodisperse droplets and particles by efficient neutralization of electrosprays. Journal Of Aerosol Science, 160(), -. DOI: 10.1016/j.jaerosci.2021.105909
    DOI del artículo: 10.1016/j.jaerosci.2021.105909
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2022
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Atmospheric Science,Engineering, Chemical,Engineering, Mechanical,Environmental Chemistry,Environmental Engineering,Environmental Sciences,Fluid Flow and Transfer Processes,Materials Science (Miscellaneous),Mechanical Engineering,Meteorology & Atmospheric Sciences,Pollution
    Size distribution
    Ring electrodes
    Polymer nanoparticles
    Polymer microparticles
    Nanoparticles
    Ion sources
    Gas phase ions
    Extraction
    Electrosprays
    Electrospray
    Electrohydrodynamics
    Electrohydrodynamic atomization
    Electrodes
    Electrical charges
    Electrical charge
    Electric corona
    Drops
    Droplets
    Droplet to particle
    Curcumin
    Corona discharges
    Corona discharge
    Cone-jet mode
    spray
    polymer particles
    polymer nanoparticles
    polymer microparticles
    generation
    gas phase ions
    electrospray
    electrohydrodynamic atomization
    electrical charge
    dynamic atomization
    drug
    droplet to particle
    curcumin
    coupling electrospray
    corona discharge
    charge reduction
    Química
    Pollution
    Meteorology & atmospheric sciences
    Mechanical engineering
    Materials science (miscellaneous)
    General materials science
    Fluid flow and transfer processes
    Environmental sciences
    Environmental engineering
    Environmental chemistry
    Engineering, mechanical
    Engineering, chemical
    Atmospheric science
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