Triboelectric Charge Characteristics and Donor-Acceptor, Acid-Base Properties of Minerals—are They Related?

Manouchehri, Hamid-Reza; Rao, K. Hanumantha; Forssberg, K.S.E.

doi:10.1080/0272-630191899742

Cited by 9 publications

(5 citation statements)

References 20 publications

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“…In addition to the obvious correlation between zeta potential and contact electrification for polymers that contain bound ions and mobile counterions, Forssberg and co-workers observed a correlation between the zeta potentials of several inorganic minerals and the contact electrification of these minerals. [50] The zeta potentials of inorganic solids are related to the presence of dissociable ionic functional groups (often oxides) at their surface; [47] the ion-transfer model predicts that contact electrification of these solids is likewise related to mobile ions at their surface. [11] Baur and co-workers noted a similar correlation between electrokinetic behavior and contact electrification for polymers doped with organic salts (charge-control agents).…”

Section: Ionic Electretsmentioning

confidence: 99%

Electrostatic Charging Due to Separation of Ions at Interfaces: Contact Electrification of Ionic Electrets

2008

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This Review discusses ionic electrets: their preparation, their mechanisms of formation, tools for their characterization, and their applications. An electret is a material that has a permanent, macroscopic electric field at its surface; this field can arise from a net orientation of polar groups in the material, or from a net, macroscopic electrostatic charge on the material. An ionic electret is a material that has a net electrostatic charge due to a difference in the number of cationic and anionic charges in the material. Any material that has ions at its surface, or accessible in its interior, has the potential to become an ionic electret. When such a material is brought into contact with some other material, ions can transfer between them. If the anions and cations have different propensities to transfer, the unequal transfer of these ions can result in a net transfer of charge between the two materials. This Review focuses on the experimental evidence and theoretical models for the formation of ionic electrets through this ion-transfer mechanism, and proposes--as a still-unproved hypothesis--that this ion-transfer mechanism may also explain the ubiquitous contact electrification ("static electricity") of materials, such as organic polymers, that do not explicitly have ions at their surface.

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Section: Ionic Electretsmentioning

confidence: 99%

Electrostatic Charging Due to Separation of Ions at Interfaces: Contact Electrification of Ionic Electrets

2008

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“…transferring from Lewis acid/base sites on one surface to Lewis acid/base sites on another surface. [44] As early as 1902, Knoblauch observed that solid organic acids tended to become negatively charged and solid organic bases tended to become positively charged when these powders were shaken from a piece of filter paper. [45] In their published work in 1953, Medley [46] reported similar observations with acidic and basic ion-exchange.…”

Section: Ion Transfermentioning

confidence: 99%

“…Forssberg and co-workers [44] correlated the zeta potentials of several inorganic minerals and the contact electrification of these minerals. Adsorbed water was shown to increase the surface (ionic) conductivity of these insulating solids.…”

Section: Ion Transfermentioning

confidence: 99%

Engineering Polymer Interfaces: A Review toward Controlling Triboelectric Surface Charge

Šutka

Lapčinskis

et al. 2023

Adv Materials Inter

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Contact electrification and triboelectric charging are areas of intense research. Despite their low ability to accept or donate electrons, polymer insulator based triboelectric nanogenerators have emerged as highly efficient mechanical‐to‐electrical conversion devices. Here, it is reviewed the structure–property–performance of polymer insulators in triboelectric nanogenerators and focus on tools that can be used to directly enhance charge generation, via altering a polymer's mechanical, thermal, chemical, and topographical properties. In addition to the discussion of these fundamental properties, the use of additives to locally manipulate the polymer surface structure is discussed. The link between each property and the underlying charging mechanism is discussed, in the context of both increasing surface charge and predicting the polarity of surface charge, and pathways to engineer triboelectric charging are highlighted. Key questions facing the field surrounding data reporting, the role of water, and synergy between mass, electron, and ion transfer mechanisms are highlighted with aspirational goals of a holistic model for triboelectric charging proposed.

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“…Because the fundamental mechanisms are still unknown, it has been challenging to rationalize the ordering of materials in the triboelectric series. Previous studies have proposed different physical properties for explaining the triboelectric series, such as the work function, − energy levels of the molecular orbitals, ionization potential, potential to lose an electron from an anion, dipole moment, , donor number, , surface tension (via an electron-donating parameter), and dielectric constant . However, the conclusions from these previous studies have been far from satisfactory: these studies reported results that do not conceptually represent the triboelectric series and/or are based on incorrectly designed experiments.…”

mentioning

confidence: 99%

“…For example, most studies investigated only a few types of materials − ,,− and/or concluded with orderings of the materials that are different from common expectations ,,,,− (e.g., triboelectric series that are widely reported and used). Some studies did not perform the contact-charging experiments for verifying their results. ,, …”

mentioning

confidence: 99%

Rationalizing the Triboelectric Series of Polymers

et al. 2019

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Triboelectric Charge Characteristics and Donor-Acceptor, Acid-Base Properties of Minerals—are They Related?

Cited by 9 publications

References 20 publications

Electrostatic Charging Due to Separation of Ions at Interfaces: Contact Electrification of Ionic Electrets

Electrostatic Charging Due to Separation of Ions at Interfaces: Contact Electrification of Ionic Electrets

Engineering Polymer Interfaces: A Review toward Controlling Triboelectric Surface Charge

Rationalizing the Triboelectric Series of Polymers

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