What is Tin disulfide?
Tin disulfide, an inorganic compound that has a chemical formula of SnS2. It is an yellow hexagonal flake that has the CdI2 crystal form. It is hardly soluble in water, but it is water-soluble in aqua regia and hot alkaline solution. It is it is also soluble within sodium sulfide Solution, often used as gold paint.
Tin disulfide soluble in hot alkali and in aqua regia solution. It can undergo the coordination reaction in concentrated hydrochloric acid, however it is unsoluble when dilute in hydrochloric acids and insoluble in water and the acid nitric. It can also react with ammonium sulfide and dissolve.
How do you make Tin disulfide?
Tin disulfide may be obtained by mixing directly tin and sulfur in the presence of iodine. The reaction involves the heating process:
2. S -- SnS2
Another method is to pass hydrogen sulfide through solution of tin (IV) salt , or into the tin (IV) salt solution to create a precipitate.
Electrochemical behavior of multi-walled carbon-carbon nanotubes in tin disulfide as negative electrodes of lithium-ion battery
Direct current arc plasma method is used to prepare multi-walled carbon nanotube-confined metal nanostructures (Sn@MWCNT) as the precursor under a methane-based atmosphere. SnS_2@MWCNT nanostructures were obtained through the sulfurization reaction. The results of the physical characterization of the materials such as Raman, X-ray Diffraction (XRD), and transmission electron microscopy (TEM) proved that the length of the multi-walled carbon nanotubes was about 400nm, the carbon layer on the surface was well crystallized while the size of the carbon layer was 10 nm. Lithium-ion battery systems using Sn S2@MWCNT nanostructures as anode materials have an impressive electrochemical performance. The initial charged-discharge Coulomb efficiency is 71%, following 50 cycles, this capacity still remains at 703mAh?g-1. The impressive capacity of SnS_2@MWCNT nanostructured electrodes result from the fact that a range of active materials offer the capability together, and the reactant platform of each is unique to each material.
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 combined with single-walled carbon nanotubes (SWCNTs) has been prepared using an easy method of solvothermal. It is found to have excellent electrochemical properties after being added to the negatively electrode material of the lithium ion battery. At a current density of 1 A/gand after 100 cycles still keeps a reversible reversible particular capacity of about 510 milliamps per gram. For comparison, we utilized the same method to synthesize a single SnS2 material and conduct Electrochemical testing on it. Results show that even though the initial power of SnS2 material is impressive, the cycle performance is low and decays quickly after less than 20 cycles. The exceptional efficiency of the composite in batteries made from lithium is thought to be due to the synergy between the two substances of SnS2 along with SWCNTs.
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