Electrical Mobility as an Indicator for Flexibly Deducing the Kinetics of Nanoparticle Evaporation

Show full item record



Permalink

http://hdl.handle.net/10138/346229

Citation

Yang , H , Ding , D , Skyttä , A , Cai , R , Kulmala , M & Kangasluoma , J 2022 , ' Electrical Mobility as an Indicator for Flexibly Deducing the Kinetics of Nanoparticle Evaporation ' , Journal of Physical Chemistry C , vol. 126 , no. 20 , pp. 8794–8800 . https://doi.org/10.1021/acs.jpcc.2c02858

Title: Electrical Mobility as an Indicator for Flexibly Deducing the Kinetics of Nanoparticle Evaporation
Author: Yang, Huan; Ding, Dian; Skyttä, Aurora; Cai, Runlong; Kulmala, Markku; Kangasluoma, Juha
Contributor organization: Institute for Atmospheric and Earth System Research (INAR)
Date: 2022-05-26
Language: eng
Number of pages: 7
Belongs to series: Journal of Physical Chemistry C
ISSN: 1932-7447
DOI: https://doi.org/10.1021/acs.jpcc.2c02858
URI: http://hdl.handle.net/10138/346229
Abstract: Condensation and evaporation of vapor species on nanopartide surfaces drive the aerosol evolution in various industrial/atmospheric systems, but probing these transient processes is challenging due to related time and length scales. Herein, we present a novel methodology for deducing nanoparticle evaporation kinetics using electrical mobility as a natural size indicator. Monodispersed nanopartides are fed to a differential mobility analyzer which serves simultaneously as an evaporation flowtube and an instrument for measuring the electrical mobility, realizing measurements of evaporation processes with time scales comparable to the instrument response time. A theoretical framework is derived for deducing the evaporation kinetics from instrument responses through analyzing the nanopartide trajectory and size-mobility relationship, which considers the coupled mass and heat transfer effect and is applicable to the whole Knudsen number range. The methodology is demonstrated against evaporation but can potentially be extended to condensation and other industrial/atmospheric processes involving rapid size change of nanoparticles.
Subject: 114 Physical sciences
214 Mechanical engineering
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


Files in this item

Total number of downloads: Loading...

Files Size Format View
acs.jpcc.2c02858.pdf 1.331Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record