Complete Prevention of Contact Electrification by Molecular Engineering

Deep Trap Boosted Ultrahigh Triboelectric Charge Density in Nanofibrous Cellulose-Based Triboelectric Nanogenerators

“…Since its initial demonstration in 2012, triboelectric nanogenerators (TENGs) that can effectively harvest environmental mechanical energy have been the subject of intense research. − It has a high power output, an adaptable structural design, and a variety of material choices. Development of the TENGs has spawned a slew of new uses, such as flexible electronics, wireless sensing, catalysis, medicine, and other fields. − Meanwhile, the choice of the tribolayer material for TENGs presents tougher challenge when trying to get a higher electrical output. − While traditional polymers provide a considerable electrical output for TENGs, the environmental pollution caused by their nondegradable properties is inevitable. − Bio-based materials have become important materials for the preparation of electropositive tribolayers of TENGs due to their wide sources, degradability, and simple preparation. Among them, cellulose nanofibers (CNFs) with excellent mechanical properties and transparency have gained increasing attention. − CNFs can guide TENGs toward a more environmentally conscious system that is also naturally biocompatible, recyclable, and degradable.…”

Control of triboelectrification on Al–metal surfaces through microstructural design

“…[8][9][10][11] The instantaneous large current generated by electrostatic discharge can cause great harm to electronic devices, static sensitive systems, and aerospace equipment, either. [12][13][14][15][16] In particular, in recent years the use of large-scale integrated circuits in the aerospace industry has increased the probability of electrostatic discharge, leading to the failure of the navigation systems of aircraft, rockets, satellites, and so on. [17][18][19][20] Therefore, suppression and regulation of static electricity are a matter of pressing concern to the electronics industry.…”

“…A variety of antistatic methods have been developed over the years trying to eliminate the risks associated with triboelectrification and static electricity accumulation. These approaches include dissipating the frictional charge generated on the surface into the air or the ground, the use of polymer composites, 21,22 doping with and adding antistatic agents, 23 removing colocalized free radicals, 24,25 controlling the size of the friction area 10,14 and so on. 26 However, static electricity cannot be safely discharged through grounding or discharge brushes, and most of these methods are complex and costly.…”

Organic Charge Transfer Cocrystals as Additives for Dissipation of Contact Charges on Polymers

“…The latter can also be realized by the surface oxidation of the polymers . Considering the electron transfer mechanism, the surface modifications can also be used to render polymers antistatic . In the past decade, we and others , have also shown an unconventional charge dissipation mechanism involving organic radical scavengers (e.g., tocopherol, diphenylpicryl hydrazyl, dopamine, and tannic acid) doped into the polymers.…”

“…26 Considering the electron transfer mechanism, the surface modifications can also be used to render polymers antistatic. 27 In the past decade, we 28 others 29,30 have also shown an unconventional charge dissipation mechanism involving organic radical scavengers (e.g., tocopherol, diphenylpicryl hydrazyl, dopamine, and tannic acid) doped into the polymers. These studies demonstrated that rendering polymers antistatic without altering their conductivity is possible.…”