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What's Tin disulfide?
Tin disulfide can be described as an inorganic compound with a chemical formula of SnS2. It is a yellow hexagonal flake , with it's CdI2 crystal form. It is hardly soluble in the water but is easily soluble in aqua regia as well as hot alkaline solutions. It is can be found in sodium sulfide Solution, which is frequently used as gold paint.
Tin disulfide dissolves in aqua regia and hot acid solution. It can also undergo coordination reactions with concentrated hydrochloric acid, but it's dissolvable in dilute hydrochloric acids and insoluble in water and Nitric acid. It is also capable of resolving with ammonium sulfur to dissolve.
How to make tin disulfide?
Tin disulfide can be obtained by combining directly tin with sulfur with iodine. The reaction requires the heating process:
2. S -- SnS2
Another technique is to add hydrogen sulfide through the solution of either tin (IV) salt and tin (IV) salt solution, and then form a precipitate.
Electrochemical properties of multi-walled carbon-carbon nanotubes in to tin disulfide as the negative electrodes of lithium-ion battery
The direct current arc-plasma method has been used to make multi-walled carbon nanotube-confined metal tin Nanostructures (Sn@MWCNT) as the precursor in methane atmosphere. Then, SnS_2@MWCNT structures were made through the sulfurization reaction. The physical properties of the material using Raman, X-ray diffracted (XRD) as well as Transmission electron Microscopy (TEM) revealed that the length of multi-walled carbon-carbon nanotubes was approximately 400nm, the surface carbon layer was well crystallized in addition, the thickness of this carbon-based layer was approximately 10 nanometers. Lithium-ion battery systems using Sn S2@MWCNT nanostructures for anodes materials exhibit a decent electrochemical performance. The first charged-discharge Coulomb effect is 71% After 50 cycles, it still maintains 703 mAh?g-1. The high-capacity characteristics of SnS_2@MWCNT nanostructured electrodes come from the fact that a variety of active material provide the capacity in combination, and the reaction platform of each material 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 composed of SnS2 along with carbon nanotubes that are single-walled (SWCNTs) is prepared using simple solvothermal methods. It has high electrochemical efficiency after being applied to the negative electrode of the lithium ion battery. At a current density of 1 A/g, even after 100 times, the battery still maintains a variable specific capacity of more than 510 mAh/g. For comparison, we used the same method to synthesize a single SnS2 material and then conduct electrochemical tests on it. The results reveal that while the initial specific capability of SnS2 material is high, the cycle performance is poor, and it is rapidly degraded after just 20 cycles. The higher performances of this compound in lithium-ion batteries are thought to be the result of the synergy that occurs between the two ingredients comprising SnS2 as well as SWCNTs.
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