What is Tin disulfide
What is Tin disulfide?
Tin disulfide, an inorganic compound with the chemical formula SnS2. It is the yellow hexagonal flake which has the CdI2 crystal shape. It is not soluble in the water but is soluble in aqua regia , and hot alkaline solution, and it is also soluble within sodium sulfide Solution, commonly used for gold paint.
Tin disulfide can be found in aqua regia and hot acid solution and can undergo coordination reaction with concentrated hydrochloric acid, but it's unsoluble when dilute in hydrochloric acid and is insoluble in water and the acid nitric. It may also react with ammonium Sulfide to dissolve.
How do you prepare the tin disulfide?
Tin disulfide is produced by directly mixing tin and sulfur with the iodine. The reaction requires heat:
Sn + 2 S -- SnS2
Another option is passing hydrogen sulfide in the solution of either tin (IV) salt and tin (IV) salt solution to cause it to precipitate.
Electrochemical properties of multi-walled carbon nanotubes confined to tin disulfide as the negative electrode of lithium ion battery
Direct current arc plasma method was used to prepare multi-walled carbon Nanotube-confined tin Nanostructures (Sn@MWCNT) as a precursor in a methane atmospheric environment. Then SnS_2@MWCNT structures were made through in the reaction of sulfurization. The results from the physical characterization of the materials such as Raman, Xray diffraction (XRD), and transmission electron microscopy (TEM) demonstrated that the length of multi-walled carbon-carbon nanotubes was approximately 400nm, the carbon layer on the surface was well crystallized in addition, the thickness of this carbon-based layer was approximately 10 nanometers. Lithium-ion batteries that use Sn S2@MWCNT nanostructures as anode materials have an impressive electrochemical performance. The first charge-discharge Coulomb rate is 71% After 50 cycles, the capacity is still at 703 mAh?g-1. The characteristics of high-capacity SnS_2@MWCNT nanostructured electrodes result from the fact that several types of active materials offer the capacity in combination, and the catalyst for each of them 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 substance made of SnS2 and single-walled carbon nanotubes (SWCNTs) was made by a simple solvothermal method. It was found to have excellent electrochemical properties after being used as the negative electrode material of lithium Ion battery. In a high density of current that is 1 A/g. After 100 cycles, it has a reversible specific power of more than 510 milliamps per gram. As a comparison, we used the same technique to make a single SnS2 material and conduct experiments on its electrochemistry. The results indicate that even though the initial capacity of the SnS2 material is impressive, the cycle performance is poorand is rapidly degraded after just 20 cycles. The superior effectiveness of this alloy material when used in lithium-ion batteries thought to be due to the synergy between the two parts from SnS2 in addition to SWCNTs.
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