Universität zu Köln

Haeberle, Jan, Schella, Andre, Sperl, Matthias ORCID: 0000-0001-9525-0368, Schroeter, Matthias ORCID: 0000-0002-8332-5585 and Born, Philip (2018). Double origin of stochastic granular tribocharging. Soft Matter, 14 (24). S. 4987 - 4996. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 1744-6848

Full text not available from this repository.

Abstract

The mechanisms underlying triboelectric charging have a stochastic nature. We investigate how this randomness affects the distributions of charges generated on granular particles during either a single or many collisions. The charge distributions we find in our experiments are more heavy-tailed than normal distributions with an exponential decay of the probability, they are asymmetric, and exhibit charges of both signs. Moreover, we find a linear correlation between the width and mean of these distributions. We rationalize these findings with a model for triboelectric charging which combines stochastic charge separation during contact and stochastic charge recombination after separation of the surfaces. Our results further imply that subsequent charging events are not statistically independent.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Haeberle, Jan UNSPECIFIED UNSPECIFIED UNSPECIFIED Schella, Andre UNSPECIFIED UNSPECIFIED UNSPECIFIED Sperl, Matthias UNSPECIFIED orcid.org/0000-0001-9525-0368 UNSPECIFIED Schroeter, Matthias UNSPECIFIED orcid.org/0000-0002-8332-5585 UNSPECIFIED Born, Philip UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-182510
DOI:	10.1039/c8sm00603b
Journal or Publication Title:	Soft Matter
Volume:	14
Number:	24
Page Range:	S. 4987 - 4996
Date:	2018
Publisher:	ROYAL SOC CHEMISTRY
Place of Publication:	CAMBRIDGE
ISSN:	1744-6848
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CONTACT ELECTRIFICATION; PARTICULATE FLOWS; PARTICLE-SIZE; CHARGE; SURFACE; TRIBOELECTRIFICATION; HUMIDITY; IONS; DISTRIBUTIONS; ELECTRICITY Multiple languages Chemistry, Physical; Materials Science, Multidisciplinary; Physics, Multidisciplinary; Polymer Science Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/18251