Bouncing of Hydroxylated Silica Nanoparticles: an Atomistic Study Based on REAX Potentials

  • Clean silica surfaces have a high surface energy. In consequence, colliding silica nanoparticles will stick rather than bounce over a wide range of collision velocities. Often, however, silica surfaces are passivated by adsorbates, in particular water, which considerably reduce the surface energy. We study the effect of surface hydroxylation on silica nanoparticle collisions by atomistic simulation, using the REAX potential that allows for bond breaking and formation. We find that the bouncing velocity is reduced by more than an order of magnitude compared to clean nanoparticle collisions

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Author:Maureen L. NietiadiORCiD, Yudi Rosandi, Herbert M. UrbassekORCiD
URN (permanent link):urn:nbn:de:hbz:386-kluedo-61642
Parent Title (English):Nanoscale Research Letters
Document Type:Article
Language of publication:English
Publication Date:2020/03/30
Year of Publication:2020
Publishing Institute:Technische Universität Kaiserslautern
Date of the Publication (Server):2021/01/07
Issue:2020, 16(57)
Number of page:6
Faculties / Organisational entities:Fachbereich Physik
DDC-Cassification:5 Naturwissenschaften und Mathematik / 530 Physik
Licence (German):Zweitveröffentlichung