What's Tin disulfide?
Tin disulfide (also known as Tin) is an inorganic compound that has a chemical formula of SnS2. It is an orange hexagonal flake with it's CdI2 crystal form. It is not soluble in water, however, it is soluble in aqua regia , and hot alkaline solution. It is can be found in sodium sulfide Solution, which is often used as golden paint.
Tin disulfide is insoluble in aqua regia and hot alkali solution and can undergo coordination reaction with concentrated acid. However, it is dissolvable in dilute hydrochloric acid that is insoluble with water and Nitric acid. It may also react with ammonium sulfide to dissolve.
How do you make Tin disulfide?
Tin disulfide can easily be obtained by directly combining tin and sulfur in the presence of iodine. The reaction involves the heating process:
Sn + 2 S -- SnS2
Another option is passing hydrogen sulfide through solution of tin (IV) salt and tin (IV) salt solution, and then melt it.
Electrochemical behavior of multi-walled carbon-carbon nanotubes in tin disulfide as negative electrode of lithium ion battery
The direct current arc-plasma method was used to prepare multi-walled carbon Nanotube-confined tin Nanostructures (Sn@MWCNT) as an intermediate in a methane-based atmosphere. SnS_2@MWCNT-like nanostructures were fabricated by this sulfurization. The results of the physical characterisation of the materials, such as Raman, X-ray Diffraction (XRD), and transmission electron microscopy (TEM) proved that the length of multi-walled carbon-carbon nanotubes measured around 400nm. Furthermore, the carbon layer that was on the surface was crystallized in addition, the thickness of this carbon-based layer was approximately 10 nm. Lithium-ion-based batteries using Sn S2@MWCNT nanostructures for anodes material have shown relatively good electrochemical performance. The initial charge discharge Coulomb performance is 71% even after 50 times, it still remains at 703mAh?g-1. The advantages of SnS_2@MWCNT's high-capacity nanostructured electrodes are due to the fact that a range of active materials can provide the capacity , as well as the reactant platform of each 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 substance made of SnS2 with single-walled carbon Nanotubes (SWCNTs) is prepared using an easy solvothermal technique. It is found to have good electrochemical properties when placed on the electrode that is negative of lithium Ion battery. At a very high current density that is 1 A/g. After 100 cycle, it still has a reversible capacity of the 510 milliamps/g. In order to compare, we applied similar methods to synthesize one SnS2 material and then conduct experiments on its electrochemistry. The results show that even though the initial capacities of SnS2 material is relatively good, its cycle performance is low and diminishes quickly after less than 20 cycles. The exceptional quality of this material for lithium-ion batteries thought to be the result of the synergy between two elements made up of SnS2 in addition to SWCNTs.
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