Imperial College London
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Professor Jan Cilliers

Faculty of Engineering, Department of Earth Science & Engineering

Chair in Mineral Processing
 
 
 
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Contact

 

+44 (0)20 7594 7360j.j.cilliers

 
 
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Location

 

RSM 1.46BRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Cruise:2023:10.1038/s41598-023-42265-0,
author = {Cruise, RD and Starr, SO and Hadler, K and Cilliers, JJ},
doi = {10.1038/s41598-023-42265-0},
journal = {Scientific Reports},
title = {Triboelectric charge saturation on single and multiple insulating particles in air and vacuum},
url = {http://dx.doi.org/10.1038/s41598-023-42265-0},
volume = {13},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Triboelectric charge transfer is complex and depends on contact properties such as material composition and contact area, as well as environmental factors including humidity, temperature, and air pressure. Saturation surface charge density on particles is inversely dependent on particle size and the number of nearby particles. Here we show that electrical breakdown of air is the primary cause of triboelectric charge saturation on single and multiple electrically insulating particles, which explains the inverse dependence of surface charge density on particle size and number of particles. We combine computational simulations with experiments under controlled humidity and pressure. The results show that the electric field contribution of multiple particles causes electrical breakdown of air, reducing saturation surface charge density for greater numbers of particles. Furthermore, these results show that particles can be discharged in a low pressure environment, yielding opportunities for improved industrial powder flows and dust mitigation from surfaces.
AU  - Cruise,RD
AU  - Starr,SO
AU  - Hadler,K
AU  - Cilliers,JJ
DO  - 10.1038/s41598-023-42265-0
PY  - 2023///
SN  - 2045-2322
TI  - Triboelectric charge saturation on single and multiple insulating particles in air and vacuum
T2  - Scientific Reports
UR  - http://dx.doi.org/10.1038/s41598-023-42265-0
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001067753600019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://www.nature.com/articles/s41598-023-42265-0
UR  - http://hdl.handle.net/10044/1/108311
VL  - 13
ER  -
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