Results 31 to 40 of about 39,422 (338)

Carbyne Polysulfide as a Novel Cathode Material for Rechargeable Magnesium Batteries

open access: yesThe Scientific World Journal, 2014
We report the formation of carbyne polysulfide by coheating carbon containing carbyne moieties and elemental sulfur. The product is proved to have a sp2 hybrid carbon skeleton with polysulfide attached on it.
Yanna NuLi   +5 more
doaj   +1 more source

High mass-loading of sulfur-based cathode composites and polysulfides stabilization for rechargeable lithium/sulfur batteries.

open access: yesFrontiers in Energy Research, 2015
Although sulfur has a high theoretical gravimetric capacity, 1672 mAh/g, its insulating nature requires a large amount of conducting additives: this tends to result in a low mass-loading of active material (sulfur), and thereby, a lower capacity than ...
Toru eHara, Toru eHara
doaj   +1 more source

An ultrathin and crack‐free metal‐organic framework film for effective polysulfide inhibition in lithium–sulfur batteries

open access: yesInterdisciplinary Materials
Due to their extensive microporous structure, metal‐organic frameworks (MOFs) find widespread application in constructing modification layers, functioning as ion sieves.
Cheng Zhou   +7 more
semanticscholar   +1 more source

Metal Polysulfides as High Capacity Electrode Active Materials — Toward Superior Secondary Batteries Based on Sulfur Chemistry

open access: yesElectrochemistry, 2023
Lithium/transition-metal polysulfide batteries are a promissing candidate for next-generation batteries with high energy densities. Transition metal polysulfides and lithium- or sodium-containing transition metal sulfides exhibit large reversible ...
Atsushi SAKUDA
doaj   +1 more source

Hydrophobization of concrete and aerated concrete by impregnation with calcium polysulfide [PDF]

open access: yesНанотехнологии в строительстве
Introduction. A method for protecting concrete and aerated concrete by treatment with a calcium polysulfide-based solution is considered. The solution penetrates into the pores of the materials and, after drying, forms a water-repellent nanoscale layer,
Ismail Aleksandrovich Massalimov   +5 more
doaj   +1 more source

Synthesis and crystal structure of (1,4,7,10-tetraazacyclododecane-κ4N)(tetrasulfido-κ2S1,S4)manganese(II)

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2020
The title compound, [Mn(S4)(C8H20N4)], was accidentally obtained by the hydrothermal reaction of Mn(ClO4)2·6H2O, cyclen (cyclen = 1,4,7,10-tetraazacyclododecane) and Na3SbS4·9H2O in water at 413 K, indicating that polysulfide anions might represent ...
Felix Danker   +2 more
doaj   +1 more source

Mn-N-C Nanostructure Derived from MnO2-x/PANI as Highly Performing Cathode Additive in Li-S Battery

open access: yesReactions, 2021
Highly dispersed Mn metallic nanoparticles (15.87 nm on average) on a nitrogen-doped porous carbon matrix were prepared by thermal treatment of MnO2-x/polyaniline (PANI), which was derived from the in situ polymerization of aniline monomers initiated by ...
Xingyuan Gao   +9 more
doaj   +1 more source

Electrochemically primed functional redox mediator generator from the decomposition of solid state electrolyte. [PDF]

open access: yes, 2019
Recent works into sulfide-type solid electrolyte materials have attracted much attention among the battery community. Specifically, the oxidative decomposition of phosphorus and sulfur based solid state electrolyte has been considered one of the main ...
Amine, Khalil   +12 more
core   +3 more sources

A Typha Angustifolia-like MoS2/carbon nanofiber composite for high performance Li-S batteries [PDF]

open access: yes, 2020
A Typha Angustifolia-like MoS2/carbon nanofiber composite as both a chemically trapping agent and redox conversion catalyst for lithium polysulfides has been successfully synthesized via a simple hydrothermal method.
Gu, Xingxing   +4 more
core   +2 more sources

Amorphization-induced surface electronic states modulation of cobaltous oxide nanosheets for lithium-sulfur batteries

open access: yesNature Communications, 2021
Regulating the adsorption behaviour of the polysulfide species is the key to achieving highly stable Li-S batteries. Here, the authors show that amorphization-induced redistribution of d orbitals enable CoO to be a favourable candidate for polysulfide ...
Ruilong Li   +15 more
doaj   +1 more source

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