2022
DOI: 10.1021/acsomega.2c05629
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Triboelectric Charging of Particles, an Ongoing Matter: From the Early Onset of Planet Formation to Assembling Crystals

Abstract: Triboelectrification is the spontaneous charging of two bodies when released from contact. Even though its manifestation is commonplace, in for instance triboelectric nanogenerators, scientists find the tribocharging mechanism a mystery. The primary aim of this mini-review is to provide an overview of different tribocharging concepts that have been applied to study and realize the formation of ordered stable structures using different objects on various length scales. Relevance spans from materials to planet f… Show more

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Cited by 12 publications
(26 citation statements)
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References 38 publications
(115 reference statements)
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“…Although the empirically established triboelectric series can potentially explain the direction of charge transfer, often deviations are observed, , the series fails to explain the dependence on the humidity observed in Figure . Note that the relative positions of materials in the triboelectric ladder do not reflect the total amount of charge that can be exchanged at any humidity level . The electrostatic interaction is enhanced with increasing RH for a hydrophilic silica colloid interacting with a hydrophobic CF x layer.…”
Section: Rh Dependence On the Adhesion And Electrostatic Interactionmentioning
confidence: 98%
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“…Although the empirically established triboelectric series can potentially explain the direction of charge transfer, often deviations are observed, , the series fails to explain the dependence on the humidity observed in Figure . Note that the relative positions of materials in the triboelectric ladder do not reflect the total amount of charge that can be exchanged at any humidity level . The electrostatic interaction is enhanced with increasing RH for a hydrophilic silica colloid interacting with a hydrophobic CF x layer.…”
Section: Rh Dependence On the Adhesion And Electrostatic Interactionmentioning
confidence: 98%
“…However, the exact mechanism at the heart of this phenomenon is still under debate. For insulators, even the nature of the charge carrier associated with contact charging has not been settled. , Basically, three kinds of charge transfer mechanisms are proposed: (i) electron transfer, (ii) ion transfer, and (iii) transfer of material . The reason that a unifying mechanism explaining the tribocharging is missing can be ascribed to the fact that the electrostatic interactions between surfaces are highly complex as they hinge on material, , size, electrical properties, surface properties, and relative humidity (RH) as well. , …”
Section: Introductionmentioning
confidence: 99%
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“…The work shown here provides a basis on which an understanding of charge transfer between different pharmaceutical crystals can be built. Second, it provides insight into the poorly understood phenomenon of the triboelectrification of chemically identical materials . Based on this work and the papers previously discussed, ,, it is very unlikely that the surface effective WF profile of any particulate solid is homogeneous, implying that triboelectric charge transfer can readily occur for the same material.…”
Section: Resultsmentioning
confidence: 71%
“…Not all collisions are likely pure elastic collisions, and some particles may also undergo inelastic collisions where the colliding particles stick together. Furthermore, the contact electrification mechanism could induce an electrostatic attraction between single colliding particles [19,[34][35][36]. It is plausible that all three mechanisms contribute to the re-agglomeration process of single powder microspheres.…”
Section: Effect Of Vacuum Pressurementioning
confidence: 99%