What is Tin disulfide?
Tin disulfide is a non-organic compound that has chemical formula SnS2. It is a yellow hexagonal flake with the CdI2 crystal structure. It isn't soluble in water, but it is water-soluble in aqua regia and hot alkaline solutions. It's also soluble in sodium sulfide Solution, which is often used as gold paint.
Tin disulfide is soluble aqua regia and hot alkali solution and can undergo coordination reaction with concentrated hydrochloric acid. It is not soluble in dilute acids, insoluble in water, and the acid nitric. It also reacts with ammonium Sulfide to dissolve.
How to prepare the tin disulfide?
Tin disulfide could be produced by directly mixing tin and sulfur with Iodine. The reaction requires heat:
Sn + 2 S --- SnS2
Another technique is to add hydrogen sulfide into the solution of either tin (IV) salt solution or the tin (IV) salt solution, and then form a precipitate.
Electrochemical properties of multi-walled carbon nanotubes confined tin disulfide as negative electrodes for lithium ion battery
The direct current arc plasma method was employed to produce multi-walled carbon carbon nanotube confined metal tin Nanostructures (Sn@MWCNT) as a precursor in a methane atmosphere. Then, SnS_2@MWCNT were made by this sulfurization. The results of physical analysis of the material such as Raman, Xray diffraction (XRD), and Transmission electron Microscopy (TEM) revealed that the length of multi-walled carbon nanotubes were about 400nm. Additionally, the Carbon layer on the surface had been crystallized, in addition, the thickness of this carbon-based layer was around 10 nanometers. Lithium-ion batteries made of Sn S2@MWCNT nanostructures for anodes materials have relatively good electrochemical performance. The first charges-discharge Coulomb efficacy is 71%, After 50 cycles, it remains at 703 mAh?g-1. The superior capacity characteristics of SnS_2@MWCNT nanostructured electrodes come from the fact that several types of active materials can provide the ability together, and that 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 new composite material composed of SnS2 along with carbon nanotubes that are single-walled (SWCNTs) was created using an easy method of solvothermal. It has excellent electrochemical properties after being placed on the electrode that is negative of lithium Ion battery. When the current density is high of 1 A/g one hundred times it still retains a reversible capacity of approximately 510 millions of mAh/g. As a comparison, we used this same method to create one SnS2 material and then conduct studies on electrochemistry on the material. The results reveal that while the initial specific capability of SnS2 material is quite high, the efficiency of the cycle is low, and will begin to decline after only 20 cycles. The superior quality of this material for lithium-ion batteries thought to be due to the synergy between the two substances from SnS2 as well as SWCNTs.
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