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What is Tin disulfide

What is Tin disulfide?

Tin disulfide is a non-organic compound with a chemical formula of SnS2. It is a yellow hexagonal flake containing an CdI2 crystal shape. It isn't very soluble water, but it's easily soluble in aqua regia as well as hot alkaline solutions. It is it is also soluble in sodium Sulfide Solution, which is frequently used as 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. It is dissolvable in dilute hydrochloric acids but insoluble in water and the acid nitric. It can also react with ammonium Sulfide to dissolve.

How to prepare tin disulfide?

Tin disulfide is produced by directly mixing tin and sulfur with iodine. The reaction involves heat:

Sn + 2 S --- SnS2

Another method is to put hydrogen sulfide in the solution of either tin (IV) salt or (IV) salt solution to precipitate it.

Electrochemical behavior of multi-walled carbon nanotubes held in with tin disulfide used as the negative electrode in lithium ion battery

The direct current arc plasma technique was employed to produce multi-walled carbon nanotube-confined metal Nanostructures (Sn@MWCNT) as precursors in a methane atmosphere. Then, SnS_2@MWCNT-like nanostructures were fabricated by an sulfurization process. The physical properties of the materials such as Raman, X-ray Diffraction (XRD), and transmission electron microscopy (TEM) showed that the length of the multi-walled carbon nanotubes measured around 400nm. Furthermore, the surface carbon layer was well crystallized, it was thicker than the surrounding carbon, around 10 nanometers. Lithium-ion batteries using Sn S2@MWCNT nanostructures as anode materials have relatively good electrochemical performance. The first charges-discharge Coulomb efficacy is 71% After 50 cycles, this capacity still maintains 703 mAh?g-1. The impressive capacity of SnS_2@MWCNT nanostructured electrodes come from the fact that many of active substances provide the capacity , as well as the reactions platform of each one differs.

Study on electrochemical performance of tin disulfide/single-walled carbon nanotube composite material used as anode material for lithium-ion battery

A novel composite material made of SnS2 as well as single-walled carbon nanotubes (SWCNTs) was created using an easy solvothermal process. It is found to have high electrochemical efficiency after being put on to negative electrode material of the lithium ion battery. With a high current density of 1 A/g, after 100 cycles maintains a variable specific capacity of the 510 millions of mAh/g. In order to compare, we applied similar methods to synthesize one SnS2 material and conducted electrical tests with it. Results show that even though the initial capability of SnS2 material is quite high, its cycle performance is low and goes through a rapid decline after less than 20 cycles. The better performances of this compound in lithium-ion batteries are believed to be due to it being a synergy between both components that comprise SnS2 and SWCNTs.

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