Results 11 to 20 of about 272,144 (300)

Determining the depth of surface charging layer of single Prussian blue nanoparticles with pseudocapacitive behaviors [PDF]

open access: yesNature Communications, 2022
The surface charging layer in nanomaterials, which determines their pseudocapacitive behavior, is challenging to characterize. Here the authors perform Faradic electrochemical impedance spectroscopy measurements of single cuboid Prussian blue ...
Ben Niu   +5 more
doaj   +2 more sources

Simulating Surface Charge Dynamics [PDF]

open access: yesIEEE Transactions on Dielectrics and Electrical Insulation, 2021
Surface charge dynamics can play an important role in electric field distributions in both AC and DC insulation systems. In this paper the theory behind surface charge dynamics is introduced with a particular focus on the calculation of surface divergence; an operator which is used to determine movement of charge constrained to a surface.
Callender, George   +2 more
openaire   +2 more sources

Charged nanorods at heterogeneously charged surfaces [PDF]

open access: yesThe Journal of Chemical Physics, 2018
We study the spatial and orientational distribution of charged nanorods (rodlike counterions) as well as the effective interaction mediated by them between two plane-parallel surfaces that carry fixed (quenched) heterogeneous charge distributions. The nanorods are assumed to have an internal charge distribution, specified by a multivalent monopolar ...
Ali Naji   +3 more
openaire   +2 more sources

Interaction between heterogeneously charged surfaces: Surface patches and charge modulation [PDF]

open access: yesPhysical Review E, 2013
When solid surfaces are immersed in aqueous solutions, some of their charges can dissociate and leave behind charge patches on the surface. Although the charges are distributed heterogeneously on the surface, most of the theoretical models treat them as homogeneous.
Ben-Yaakov, Dan   +2 more
openaire   +3 more sources

Surface charge accumulation and pre-flashover characteristics induced by metal particles on the insulator surfaces of 1100 kV GILs under AC voltage

open access: yesHigh Voltage, 2020
With the increase in the voltage and capacitance of gas-insulated transmission lines (GILs), the insulation failure of GIL has attracted more and more attention.
Li Xing   +5 more
doaj   +1 more source

Influence of humidity on conduction processes in gas-insulated devices

open access: yesHigh Voltage, 2020
Humidity has been considered as one of the main influencing factors that determine the conduction processes and electric strength of gas-insulated systems.
Malte Tschentscher   +3 more
doaj   +1 more source

Finite-element analysis for surface discharge on polyimide insulation in air at atmospheric pressure under pulsed electrical stress

open access: yesHigh Voltage, 2020
A surface discharge non-equilibrium plasma model of air–polyimide under pulsed electrical stress is established, by considering the reaction of charged particles on the dielectric surface and the secondary electron emission caused by the condition that ...
Guojing Dong   +4 more
doaj   +1 more source

Buried Charged Surface in Proteins [PDF]

open access: yesStructure, 2000
The traditional picture of charged amino acids in globular proteins is that they are almost exclusively on the outside exposed to the solvent. Buried charges, when they do occur, are assumed to play an essential role in catalysis and ligand binding, or in stabilizing structure as, for instance, helix caps.By analyzing the amount and distribution of ...
Kajander, T.   +8 more
openaire   +2 more sources

Gas–solid interface charge characterisation techniques for HVDC GIS/GIL insulators

open access: yesHigh Voltage, 2020
Surface charge accumulation on the spacers is one of the key issues restraining the development of HVDC GIS/GIL. The precise measurement of surface charge properties provides the basis for further study of the surface charge transport mechanism as well ...
Lei Zhang   +13 more
doaj   +1 more source

Influence of N2 pressure on surface discharge characteristics of PEEK under positive repetitive square voltage

open access: yesHigh Voltage, 2021
PEEK (polyetheretherketone) and N2 are used in the packaging of high‐voltage power electronics as the frame material and insulation gas, respectively. The surface discharge behaviours of PEEK in N2 under positive repetitive square voltage are the main ...
Ye Li   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy