Results 21 to 30 of about 169,885 (312)

Electrochemical amination of para-chloroaniline

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2019
The process of cation-radical amination of para-chloroaniline using hydroxylamine and the Ti(IV)/Ti(III) mediator system was studied in aqueous solutions of 9–17 M H2SO4.
Yu.A. Lisitsyn
doaj   +1 more source

A facile approach to nanoarchitectured three-dimensional graphene-based Li–Mn–O composite as high-power cathodes for Li-ion batteries

open access: yesBeilstein Journal of Nanotechnology, 2012
We report a facile method to prepare a nanoarchitectured lithium manganate/graphene (LMO/G) hybrid as a positive electrode for Li-ion batteries. The Mn2O3/graphene hybrid is synthesized by exfoliation of graphene sheets and deposition of Mn2O3 in a one ...
Wenyu Zhang   +8 more
doaj   +1 more source

Unraveling the Influence of the Electrolyte on the Polarization Resistance of Nanostructured La0.6Sr0.4Co0.2Fe0.8O3-δ Cathodes

open access: yesNanomaterials, 2022
Large variations in the polarization resistance of La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) cathodes are reported in the literature, which are usually related to different preparation methods, sintering temperatures, and resulting microstructures.
Javier Zamudio-García   +4 more
doaj   +1 more source

Sn-Doped Hydrated V2O5 Cathode Material with Enhanced Rate and Cycling Properties for Zinc-Ion Batteries

open access: yesCrystals, 2022
Water molecules and cations with mono, binary, and triple valences have been intercalated into V2O5 to significantly improve its electrochemical properties as a cathode material of zinc-ion batteries.
Kai Guo   +10 more
doaj   +1 more source

Three-Dimensional Carbon-Supported MoS2 With Sulfur Defects as Oxygen Electrodes for Li-O2 Batteries

open access: yesFrontiers in Energy Research, 2020
Recently, Li-O2 batteries have been considered to be promising next-generation energy storage devices owing to their high theoretical specific energy.
Yun Liu   +8 more
doaj   +1 more source

Anode and cathode arc root movement during contact opening at high current [PDF]

open access: yes, 1999
This paper presents experimental research into the behavior of short circuit break arcs ignited between opening contacts. The investigation is applied to arc chamber geometries commonly used in miniature circuit breakers (MCB).
Peter A. Jeffery   +3 more
core   +1 more source

Effects of Li+ conduction on the capacity utilization of cathodes in all-solid-state lithium batteries

open access: yesFrontiers in Chemistry, 2023
Li+ conduction in all-solid-state lithium batteries is limited compared with that in lithium-ion batteries based on liquid electrolytes because of the lack of an infiltrative network for Li+ transportation.
Zhiping Wang   +7 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

A Review on Nanocomposite Materials for Rechargeable Li-ion Batteries

open access: yesApplied Sciences, 2017
Li-ion batteries are the key enabling technology in portable electronics applications, and such batteries are also getting a foothold in mobile platforms and stationary energy storage technologies recently.
Dervis Emre Demirocak   +2 more
doaj   +1 more source

Suppressing the P2‐O2 phase transition and Na+/vacancy ordering in Na0.67Ni0.33Mn0.67O2 by a delicate multicomponent modulation strategy

open access: yesBattery Energy, 2023
P2‐type Na0.67Ni0.33Mn0.67O2 is a promising cathode for sodium‐ion batteries with features of high specific capacity and air resistance, whereas its cycling stability and rate performance are dissatisfactory suffering from the disastrous P2‐O2 phase ...
Guanglin Wan   +6 more
doaj   +1 more source

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