What's Tin disulfide?
Tin disulfide can be described as an inorganic compound with the chemical formula SnS2. It is an orange hexagonal flake with the CdI2 crystal form. It is not soluble in water, however, it is soluble in aqua regia , and hot alkaline solution, and can be found in sodium sulfide Solution, frequently used to create gold paint.
Tin disulfide is soluble aqua regia as well as hot alkali solution. It also undergoes coordination reaction with concentrated acid, but it is impermeable to dilute acid that is insoluble with water and in nitric acid. It is also capable of resolving with ammonium Sulfide to dissolve.
How to prepare Tin disulfide?
Tin disulfide is made by directly mixing tin and sulfur with Iodine. The reaction requires heat:
2. S -- SnS2
Another approach is to inject hydrogen sulfide into the tin (IV) salt or (IV) salt solution, and then cause it to precipitate.
Electrochemical behavior of carbon nanotubes with multi-walled walls confined by tin disulfide. It is the negative electrode of lithium ion battery
Direct current arc plasma technique is used to prepare multi-walled carbon nanotube-confined metal Nanostructures (Sn@MWCNT) as the precursor under a methane atmosphere. Then, SnS_2@MWCNT structures were made through in the reaction of sulfurization. The physical properties of the materials, such as Raman, X-ray diffracted (XRD), and transmission electron microscopy (TEM) revealed that the length of multi-walled carbon-carbon nanotubes measured around 400nm. Furthermore, the carbon layer that was on the surface was crystallized, and the thickness of the carbon layer was 10 nanometers. Lithium-ion batteries made of Sn S2@MWCNT nanostructures for anodes materials show relatively good electrochemical performance. The initial recharge Coulomb performance is 71% in the course of 50 cycle, this capacity remains stable at 703 mAh?g-1. The high-capacity characteristics of SnS_2@MWCNT nanostructured electrodes come from the fact that several types different active materials are able to provide capacity , as well as the reactions platform of each one 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 of SnS2 and single-walled carbon nanotubes (SWCNTs) was created using an easy solvothermal procedure. It is found to have excellent electrochemical properties after being used as the negative electrode material of the lithium Ion batteries. In a high density of current at 1 A/g, and after 100 cycles, it still maintains a variable specific capacity of 515 milliamps/g. In order to compare, we applied the same method for synthesis of a single SnS2 material and conduct Electrochemical testing on it. The results show that even though the initial ability of SnS2 material is relatively large, the performance of its cycles is not as good, 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 the synergy of the two components comprising SnS2 along with SWCNTs.
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