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What is Tin disulfide?
Tin disulfide, an inorganic compound with chemical formula SnS2. It is a yellow hexagonal flake , with an CdI2 crystal shape. It isn't very soluble water, however it is liquid in aqua regia and hot alkaline liquids, and also soluble in sodium sulfide Solution, commonly used for gold paint.
Tin disulfide will dissolve in aqua regia and hot alkali solution. It is also able to undergo coordination reactions with concentrated hydrochloric acid. However, it's non-soluble in dilute acid, insoluble in water, and nitric acid. It may also react with ammonium sulfide and dissolve.
How to prepare the tin disulfide?
Tin disulfide can be made by directly combining tin and sulfur in the presence of the iodine. The reaction involves heat:
Sn + 2 S --- SnS2
Another option is passing hydrogen sulfide in solution of tin (IV) salts, also known as tin (IV) salt solution, and then form a precipitate.
Electrochemical properties of multi-walled carbon nanotubes confined using tin disulfide to form the negative electrode of lithium ion battery
Direct current arc-plasma method was used to prepare multi-walled carbon nanotube-confined metal tin Nanostructures (Sn@MWCNT) as precursors in a methane-based atmosphere. SnS_2@MWCNT structures were made through the process of sulfurization. The results of physical characterization of the material like Raman, X-ray diffraction (XRD) and the transmission electron microscope (TEM) proved that the length of multi-walled carbon-carbon nanotubes was 400nm. The surfaces of the carbon layer were well crystallized it was thicker than the surrounding carbon, around 10 nanometers. Lithium-ion batteries using Sn S2@MWCNT nanostructures as anode materials exhibit a decent electrochemical performance. The first charge-discharge Coulomb effectiveness is 71% and after 50 cycles, the power is still at 703 mAh?g-1. The capacity-enhancing properties of SnS_2@MWCNT nanostructured electrodes result from the fact that various types of active materials have the capacity of the two together. The reaction platform of each is unique to each material.
Study on electrochemical performance of tin disulfide/single-walled carbon nanotube composite material used as anode material for lithium-ion battery
A new composite material of SnS2 combined with single-walled carbon nanotubes (SWCNTs) was made by a simple solvothermal method. It is found to have good electrochemical properties when connected to the negative electrode material of the lithium Ion battery. At a high current density of 1 A/g, after 100 cycles still keeps a reversible reversible particular capacity of more than 510 amps/g. To compare, we employed the same technique to make a single SnS2 material and conduct an electrochemical analysis on it. The results demonstrate that, although the initial specific capabilities of SnS2 material is quite impressive, the cycle performance is poorand fades quickly after fewer than 20 cycles. The better performance of this composite material in lithium-ion batteries is believed to be due to the synergy that occurs between the two substances from SnS2 along with SWCNTs.
Tin disulfide Supplier
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