Sublimed sulfur (≥99.5%), bis(trifluoromethane)sulfonimide lithium salt (LiTFSI), anhydrous lithium nitrate, dioxolane (DOL, 99%) 1,2-dimethoxyethane (anhydrous DME, 99.5%), and analytical grade chemicals such as KMnO4 were procured from Sigma Aldrich. Polyvinylidene fluoride (PVDF), N-methyl pyrrolidinone (NMP) and Super P were purchased from Alfa Aesar. l -glycine was procured from Fischer Scientific. All chemicals were used as received without further purification.
Sublimed sulfur
Manufactured by Merck Group
Sourced in China
Sublimed sulfur is a fine, yellow powder produced through the process of sublimation. It serves as a versatile laboratory reagent with high purity and consistency.
Automatically generated - may contain errors
Lab products found in correlation
Dioxolane, by Merck Group (1 mentions)
Super p, by Thermo Fisher Scientific (1 mentions)
1 2 dimethoxyethane, by Merck Group (1 mentions)
L glycine, by Thermo Fisher Scientific (1 mentions)
Kmno4, by Merck Group (1 mentions)
Sta 449 f1, by Netzsch (1 mentions)
Carbon disulfide, by Merck Group (1 mentions)
H2o2 solution, by Merck Group (1 mentions)
3 protocols using sublimed sulfur
1
Synthesis of Lithium-Sulfur Battery Materials
2
Synthesis and Characterization of C/S Composites
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The C/S composite was prepared by infiltration of sulfur into the MC under vacuum. In this work, mass ratios of mMC:mS = 2:1 and 1:1 were employed to fabricate C/S composite and denoted as C/S-30 and C/S-50, respectively. First, the prepared MC and the sublimed sulfur (Sigma-Aldrich) were mixed by ground milling, then the mixture was sealed in an evacuated quartz tube, heated up to 850 °C at a rate of 10 °C/min, kept at this temperature for 5 h and cooled down to room temperature. The as-prepared C/S composites were treated with CS2 for no less than three times, and the resulting samples were dried in vacuum oven at 100 °C for 2 h, indicated as C/S-30-T and C/S-50-T. The sulfur content of the preparing C/S composites were determined by thermogravimetric analysis (TGA) on a Netzsch STA 449 F1, Germany, with a heating rate of 10°C/min, and high purity Ar as the purge gas.
3
Synthesis of Elemental Sulfur
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Materials: Sublimed sulfur (Sigma-Aldrich, Shanghai, China), H2O2 solution (10%, Sigma-Aldrich), Carbon disulfide (CS2, Sigma-Aldrich). All reagents were purchased from commercial sources and used without further purification.
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