What exactly is Tin disulfide?
Tin disulfide - an inorganic compound with the chemical formula SnS2. It is a yellow hexagonal flake containing that has a CdI2 crystal shape. It is not very soluble in water, but it's easily soluble in aqua regia as well as hot alkaline solutions, and also in sodium sulfide Solution, which is commonly used as golden paint.
Tin disulfide can be found in the hot alkali solution. It can also undergo coordination reaction when combined with concentrated hydrochloric acid. It is non-soluble in dilute acid and insoluble when mixed with water and in nitric acid. It may also react with ammonium sulfide to dissolve.
How do you prepare the tin disulfide?
Tin disulfide could be produced by directly combining tin and sulfur in the presence of iodine. The reaction requires the heating process:
2. S --- SnS2
Another option is passing hydrogen sulfide into the tin (IV) salt solution or the tin (IV) salt solution to cause it to precipitate.
Electrochemical behavior of multi-walled carbon nanotubes confined to tin dioxide as the negative electrodes in lithium ion battery
Direct current arc plasma technique was used to prepare multi-walled carbon nitrotube-confined metallic tin nanostructures (Sn@MWCNT) as the precursor under a methane atmosphere. Then, SnS_2@MWCNT-like nanostructures were fabricated by in the reaction of sulfurization. The physical properties of the material , such as Raman, X-ray diffraction (XRD) and the transmission electron microscope (TEM) demonstrated that the length of multi-walled carbon nanotubes was around 400nm. The surface carbon layer was crystallized, as was the layer's thickness 10 nanometers. Lithium-ion batteries made of Sn S2@MWCNT nanostructures for anodes materials have an impressive electrochemical performance. The initial charge discharge Coulomb efficacy is 71%, After 50 cycles, the capacity still maintains 703 mAh?g-1. The advantages of SnS_2@MWCNT's high-capacity nanostructured electrodes result from the fact that a variety different active materials are able to provide capacity to work together, and also the catalyst for each of them is different.
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 comprising SnS2 together with the single-walled carbon-nanotube (SWCNTs) was created using simple solvothermal methods. It has high electrochemical efficiency after being applied to the negative electrode of the lithium Ion battery. With a high current density of 1 A/gand after 100 cycle, it maintains a reversible specific capacity of 515 milliamps per gram. As a comparison, we used the same method to synthesize a single SnS2 material and then conduct the electrochemical test on it. The results demonstrate that, although the initial specific capabilities of SnS2 material is relatively high, the cycle performance is weak, and it decays quickly after less than 20 cycles. The superior capacity of this particular composite for batteries that use lithium is thought to be due to the synergy between two ingredients which are SnS2 along with SWCNTs.
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