Molecular sieves
Molecular sieves are porous, crystalline materials that are used to selectively adsorb molecules based on their size and shape. They function by allowing smaller molecules to pass through their pores while trapping larger molecules, effectively separating and purifying substances. Molecular sieves are commonly used in a variety of industrial applications, including gas separation, drying, and catalysis.
Lab products found in correlation
35 protocols using molecular sieves
Deionized Capillary Cell Suspension Characterization
Synthesis of Acetylated Salicylates
O-acetyl salicylic acid (99%), 4-acetoxybenzoic acid (98%) and 5-acetylsalicylic acid (98%) from Lancaster Synthesis were used in this work.
General Organic Chemistry Procedures
Preparation of Mg(TFSI)2 Electrolyte
Example 2
Preparation of Electrolyte: Mg(TFSI)2 in THF and dimethylamine. Magnesium bis(trifluoromethane sulfonyl)imide (99.5%, Solvionic, France) was dried in a vacuum oven at 180° C. overnight before use. THF (Aldrich, anhydrous, 99.5%) solvent was pretreated with molecular sieves (Aldrich, 3 Å beads, 4-8 mesh) overnight and then added into the dried Mg(TFSI)2. Dimethylamine was added to the Mg(TFSI)2/THF electrolyte. The as-prepared electrolyte was then stirred overnight before use. Water levels of the as prepared electrolytes were determined from Karl-Fischer analysis, and the water content was observed to be less than 15 ppm. The solubility of Mg(TFSI)2 in THF-DMA is about 2.0 M.
Preparation of Mg(TFSI)2 Electrolyte
Example 1
Preparation of Electrolyte: Mg(TFSI)2 in Diglyme. Magnesium bis(trifluoromethane sulfonyl)imide (99.5%, Solvionic, France) was dried in a vacuum oven at 180° C. overnight prior to use. Diglyme (Aldrich, anhydrous, 99.5%) solvent was pretreated with molecular sieves (Aldrich, 3 Å beads, 4-8 mesh) overnight and then added into the dried Mg(TFSI)2. The as-prepared electrolyte was then stirred overnight before use. Water levels of the as prepared electrolytes were determined from Karl-Fischer analysis, and the water content was observed to be less than 15 ppm.
Synthesis and Characterization of Functionalized Boltorn H40
3DISCO Tissue Clearing Protocol
Fabrication of Conductive AAO Membranes
Electrochemical Study of Ferrocene Derivatives
hexahydrate (technical
grade), FeCl3 (97% reagent grade), ferrocene (98%), and
tetrabutylammonium tetrafluoroborate (TBABF4) (99%) were
purchased from Sigma-Aldrich. CuCl2 dihydrate (99–101%)
and CuBr2 were purchased from J. T. Baker, and CuCl2 dihydrate was dried in a vacuum oven. n-Butanol
(AR grade) and pyridine (AR grade) were obtained from Lab-scan analytical
sciences. Acetonitrile (MeCN) (anhydrous, 99.8%) was obtained from
VWR Chemicals. ferrocene, azulene, FeTOS, FeCl3, and n-butanol were used without further purification. TBABF4 was dried in a vacuum oven at 75 °C for 2 h before use.
MeCN was dried using molecular sieves (4 Å, Sigma-Aldrich) for
more than 24 h before electrochemical measurements.
Lithium-Sulfur Battery Electrolyte Preparation
(NMP, anhydrous, Sigma-Aldrich),
poly(vinylidene fluoride) (PVdF, Solef 6020), carbon black (Super
C65, Imerys), glass fiber sheet (Whatman GF/F), LP30 (BASF, battery
grade), lithium metal (Honjo, battery grade), and dimethyl carbonate
(DMC, UBE, battery grade) were directly used as received. Molecular
sieves (3 Å, Alfa Aesar) were dried at 300 °C under vacuum
(10–3 mbar) for more than 1 week. LiTFSI (3M Co.,
Ltd.) was dried at 120 °C under vacuum (10–3 mbar) for 12 h before use. The residual water in tetraethylene glycol
dimethyl ether (tetraglyme, Sigma-Aldrich, 99%) was removed via the
dried molecular sieves before use.
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