Results 11 to 20 of about 207,200 (314)

Оptimization of the chrome plating bath operation during the restoration of vehicle parts

open access: yesВестник СибАДИ, 2021
Introduction. In the process of chrome plating of car parts, there is a change in the composition of the chrome plating bath, which affects the stability of the ongoing processes – the performance and quality of the chrome coating.
A. N. Kotomchin
doaj   +1 more source

Synthesis and characterization of electrospun molybdenum dioxide–carbon nanofibers as sulfur matrix additives for rechargeable lithium–sulfur battery applications

open access: yesBeilstein Journal of Nanotechnology, 2018
One-dimensional molybdenum dioxide–carbon nanofibers (MoO2–CNFs) were prepared using an electrospinning technique followed by calcination, using sol–gel precursors and polyacrylonitrile (PAN) as a processing aid.
Ruiyuan Zhuang   +7 more
doaj   +1 more source

INCREASING EXTINGUISHING EFFECT OF WATER MIST BY ELEKTRIFICATION [PDF]

open access: yesCivil Engineering Journal, 2017
This paper describes extinguishing experiments to verify the possibility of increasing the fire-extinguishing efficiency of low-, medium- and high-pressure water mist by its charging by the electric field of high DC voltage.
Otto Dvořák, Jan Koller
doaj   +1 more source

Investigation of Cathodic Reaction Mechanism in Solid Oxide Fuel Cells by Operando X-Ray Absorption Spectroscopy

open access: yesElectrochemistry, 2020
The oxygen chemical potential is an essential indicator for the rate-limiting step of the oxygen reduction reaction in high-temperature electrochemical devices such as solid oxide fuel cells (SOFCs).
Yoichiro TSUJI   +7 more
doaj   +1 more source

Impact of Water-Based Binder on the Electrochemical Performance of P2-Na0.67Mn0.6Fe0.25Co0.15O2 Electrodes in Na-Ion Batteries

open access: yesBatteries, 2018
Aqueous binders are highly recommended in battery production for (i) reducing the costs and, (ii) increasing the safety due to the absence of an organic solvent.
Cyril Marino   +3 more
doaj   +1 more source

Silver Nanocoating of LiNi0.8Co0.1Mn0.1O2 Cathode Material for Lithium-Ion Batteries

open access: yesMicromachines, 2023
Surface coating has become an effective approach to improve the electrochemical performance of Ni-rich cathode materials. In this study, we investigated the nature of an Ag coating layer and its effect on electrochemical properties of the LiNi0.8Co0.1Mn0.
Xintong Li   +11 more
doaj   +1 more source

Visiting the roles of Sr‐ or Ca‐ doping on the oxygen reduction reaction activity and stability of a perovskite cathode for proton conducting solid oxide fuel cells

open access: yesSusMat, 2023
While double perovskites of PrBaCo2O6 (PBC) have been extensively developed as the cathodes for proton‐conducting solid oxide fuel cells (H‐SOFCs), the effects of Sr‐ or Ca‐doping at the A site on the activity and stability of the oxygen reduction ...
Tong Hu   +4 more
doaj   +1 more source

Investigating the Parameter-Driven Cathode Gas Diffusion of PEMFCs with a Piecewise Linearization Model

open access: yesEnergies, 2023
Improving mass transfer in gas diffusion layers is critical to achieving high-performance proton-exchange membrane fuel cells (PEMFCs). Leaks through the interface between the gas and the membrane electrode assembly frame have been widely investigated ...
Siwen Gu   +3 more
doaj   +1 more source

3D-printed hierarchical porous and multidimensional conductive network based on conducting polymer/graphene oxide

open access: yesJournal of Materiomics
Designing ultrathick and hierarchical electrodes is effective to deal with the challenge of high areal capacity and high power density for lithium-ion batteries (LIBs) manufacturing.
Cankun Gao   +8 more
doaj   +1 more source

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