What exactly is Tin disulfide?
Tin disulfide is a non-organic compound with a chemical formula of SnS2. It is an yellow hexagonal flake that has the CdI2 cristal structure. It isn't really soluble in water, but it's liquid in aqua regia and hot alkaline solution. It's also in sodium sulfide Solution, which is frequently used as golden paint.
Tin disulfide dissolves in the alkali in hot and aqua regia solution. It is also able to undergo coordination reaction with concentrated hydrochloric acid, but it's impermeable to dilute acid as well as insoluble in water and in nitric acid. It can also react with ammonium sulfide to dissolve.
How do you prepare tin disulfide?
Tin disulfide is produced by mixing directly tin and sulfur in the presence of iodine. The reaction requires heat:
2. S -- SnS2
Another method is to pass hydrogen sulfide through the solution of either tin (IV) salt solution or the tin (IV) salt solution, and then precipitate it.
Electrochemical behavior of multi-walled carbon nanotubes confined tin disulfide as negative electrode in lithium ion battery
The direct current arc-plasma method was used to prepare multi-walled carbon nitrotube-confined metallic tin Nanostructures (Sn@MWCNT) as the precursor in methane atmosphere, and then SnS_2@MWCNT was obtained by their sulfurization reactions. The results of physical analysis of the substance, including Raman, X-ray Diffraction (XRD), and Transmission electron Microscopy (TEM) revealed that the size of multi-walled carbon Nanotubes measured around 400nm. Furthermore, the surface carbon layer was crystallized, while the size of the carbon layer was around 10 nm. Lithium-ion battery systems using Sn S2@MWCNT nanostructures as anode materials have fairly good electrochemical performance. The first discharge-charge Coulomb efficacy is 71%, in the course of 50 cycle of use, the capacity remains at 703 mAh?g-1. The high-capacity properties of SnS_2@MWCNT nanostructured electrodes stem from the fact that a variety of active materials offer the ability together, and that the reactions platform of each one is distinct.
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 as well as single-walled carbon nanotubes (SWCNTs) was produced using a simple solvothermal method. It is found to have excellent electrochemical properties after being connected to the negative electrode material of the lithium Ion batteries. With a high current density of 1 A/g 100 cycles, it keeps a reversible reversible particular capacity of approximately 510 millions of mAh/g. As a comparison, we used the same method for synthesis of a single SnS2 material, and conduct experiments on its electrochemistry. The results show that even though the initial capability of SnS2 material is relatively excellent, the cycle efficiency is not great, and diminishes quickly after less than 20 cycles. The superior performance of this composite material in lithium-ion batteries is believed to be the result of the synergy that occurs between the two elements that comprise SnS2 along with SWCNTs.
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