What's Tin disulfide?
Tin disulfide is an inorganic compound that has the chemical formula SnS2. It is a yellow hexagonal flake with a CdI2 crystal structure. It is hardly soluble in water, but it is easily soluble in aqua regia as well as hot alkaline solutions. It is as well in sodium sulfide Solution, which is commonly used as golden paint.
Tin disulfide dissolves in the hot alkali solution. It also undergoes coordination reactions when exposed to concentrated hydrochloric acid. However, it's dissolvable in dilute hydrochloric acids that is insoluble with water and nitric acid. It also reacts with ammonium sulfide to dissolve.
How do I prepare the tin disulfide?
Tin disulfide can easily be obtained simply by combining tin directly with sulfur with Iodine. The reaction involves heat:
Sn + 2 S -- SnS2
Another option is to pour hydrogen sulfide into the solution of either tin (IV) salt or (IV) salt solution, and then cause it to precipitate.
Electrochemical properties of multi-walled carbon nitrotubes enclosed to tin disulfide as the negative electrode in lithium ion battery
The direct current arc plasma method has been used to make multi-walled carbon-carbon nanotube-confined metal nanostructures (Sn@MWCNT) as a precursor in a methane atmosphere. Then, SnS_2@MWCNT was obtained by the sulfurization reaction. The physical properties of the substance, including Raman, Xray diffraction (XRD), and the transmission electron microscope (TEM) confirmed that the size of multi-walled carbon Nanotubes was about 400nm, the carbon layer that was on the surface was crystallized in addition, the thickness of this carbon-based layer was about 10 nm. Lithium-ion batteries using Sn S2@MWCNT nanostructures for anodes materials show relatively good electrochemical performance. The initial recharge Coulomb effectiveness is 71%, in the course of 50 cycle of use, the capacity still maintains 703 mAh?g-1. The superior capacity characteristics of SnS_2@MWCNT nanostructured electrodes stem from the fact that various types of active materials can provide the capacity together, 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 together with the single-walled carbon-nanotube (SWCNTs) was made by an easy solvothermal process. It is found to have excellent electrochemical characteristics after being used as the negative electrode material of the lithium Ion batteries. When the current density is high of 1 A/g hundred cycles it still maintains a reversible specific capacity of more than 510 milliamps/g. For comparison, we utilized this same method to create a single SnS2 material, and conduct experiments on its electrochemistry. The results show that although the initial performance of SnS2 material is relatively large, the performance of its cycles is weak, and it fades quickly after fewer than 20 cycles. The better capacity of this particular composite for batteries that use lithium is believed to be due to it being a synergy between both substances in SnS2 as well as SWCNTs.
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