Results 31 to 40 of about 45,506 (283)

Contact-electro-catalysis for the degradation of organic pollutants using pristine dielectric powders

open access: yesNature Communications, 2022
Contact electro catalysis (CEC) was proposed as a novel catalytic principle that uses electron transfers during contact electrification to accelerate chemical reactions.
Ziming Wang   +6 more
doaj   +1 more source

The Charging Events in Contact-Separation Electrification [PDF]

open access: yesScientific Reports, 2018
AbstractContact electrification (CE)—charging of surfaces that are contacted and separated, is a common phenomenon, however it is not completely understood yet. Recent studies using surface imaging techniques and chemical analysis revealed a ‘spatial’ bipolar distribution of charges at the nano dimension, which made a paradigm shift in the field ...
Musa, Umar G.   +3 more
openaire   +4 more sources

Charge structure in volcanic plumes: a comparison of plume properties predicted by an integral plume model to observations of volcanic lightning during the 2010 eruption of Eyjafjallajökull, Iceland [PDF]

open access: yes, 2014
Cancer is a heterogeneous disease with different combinations of genetic alterations driving its development in different individuals. We introduce CoMEt, an algorithm to identify combinations of alterations that exhibit a pattern of mutual exclusivity ...
AJ Bass   +7 more
core   +8 more sources

Collisional Charging of Individual Sub-Millimeter Particles: Using Ultrasonic Levitation to Initiate and Track Charge Transfer

open access: yes, 2018
Electrostatic charging of insulating fine particles can be responsible for numerous phenomena ranging from lightning in volcanic plumes to dust explosions. However, even basic aspects of how fine particles become charged are still unclear.
Jaeger, Heinrich M.   +3 more
core   +1 more source

Synchronous measurement of tribocharge and force at the footpads of freely moving animals

open access: yesFriction, 2017
Hypothesis on electrostatic attraction mechanisms involving the hairy adhesion of climbing animals has been a matter of controversy for several years.
Yi Song   +4 more
doaj   +1 more source

Contact Electrification at Dielectric Polymer Interfaces: On Bond Scission, Material Transfer, and Electron Transfer

open access: yesAdvanced Materials Interfaces, 2023
Triboelectric nanogenerators (TENGs) are revolutionizing mechanical‐to‐electrical energy harvesting. TENGs harvest energy through the polymer–polymer contact electrification (PCE) mechanism, driven by nanoscale processes at the contact interface ...
Osvalds Verners   +3 more
doaj   +1 more source

Contact electrification in aerosolized monodispersed silica microspheres quantified using laser based velocimetry [PDF]

open access: yes, 2017
The contact electrification of aerosolized micro particles has been studied using a novel technique involving laser velocimetry. This has allowed the simultaneous determination of size and electrical charge of individual silica microspheres (in the range
Alois, Stefano   +3 more
core   +1 more source

Why do Particle Clouds Generate Electric Charges?

open access: yes, 2015
Grains in desert sandstorms spontaneously generate strong electrical charges; likewise volcanic dust plumes produce spectacular lightning displays. Charged particle clouds also cause devastating explosions in food, drug and coal processing industries ...
AA Mills   +31 more
core   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Electric Field and Humidity Trigger Contact Electrification

open access: yesPhysical Review X, 2015
Here, we study the old problem of why identical insulators can charge one another on contact. We perform several experiments showing that, if driven by a preexisting electric field, charge is transferred between contacting insulators.
Yanzhen Zhang   +7 more
doaj   +1 more source

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