The synthesis of cyclic carbonates by the cycloaddition reaction CO2 with epoxy compounds is one most promising directions in utilization CO2. present work studies ethylene carbonate oxide carbon dioxide presence zinc-phenolate catalysts formula ZnY (where, Y – methylene-bis, thio-bis and dithio-bis alkyl phenols), ionic liquids RLX R H atom or C1 –C8 groups; L cations [NMP]+, [MIM]+, [Py]+ ami...

To improve the safety of lithium ion batteries, a multi-component (MC) additive (consisting of vinylene carbonate (VC), 1,3-propylene sulfite (PS) and dimethylacetamide (DMAC)) is used in the baseline electrolyte (1.0 M LiPF6/ethylene carbonate (EC) + diethyl carbonate (DEC)). The electrolyte with the MC additive is named safety electrolyte. The thermal stabilities of fully charged Li(Ni1/3Co1/...

Calcium carbonate particles are promising candidates as proteins carriers for their controlled delivery in the body. The present paper aims at investigating the protein encapsulation by in situ precipitation of calcium carbonate particles prepared by a process based on supercritical CO2 and using a new type of degradable well-defined double hydrophilic block copolymers composed of poly(ethylene...

We studied the influence of salt on a commercially available carbon black (Ketjenblack 600, KB) in carbonate solvents commonly applied in rechargeable batteries. Adopting the typically used salts: lithium hexa-fluorophosphate (LiPF6), lithium bis(trifluoromethane sulfonyl) imide (LiTFSI), as well as sodium hexafluorophosphate (NaPF6) dissolved in mixtures of ethylene carbonate and propylene car...

Strontium titanates were prepared with different morphologies by varying the ratio of solvents used during synthesis. The effects morphology and solvent (ethylene glycol to water) investigated both on structure photocatalytic activity samples. Structural properties determined X-ray diffraction, scanning electron microscopy, diffuse reflectance spectroscopy, nitrogen adsorption measurements. sam...

We present herein a systematic study of solvent co-intercalation during electrochemical reduction titanium disulfide in lithium cells using state the art situ and synchrotron X-ray diffraction. To understand role electrolyte components, four salts (LiBF 4 , LiBOB, LiPF 6 LiTFSI) three solvents (ethylene carbonate, propylene carbonate dimethyl carbonate) were investigated. Various types assemble...

Ni-rich NMC cathode materials with a Ni content of over 80% are currently regarded as promising pathway to further boost the energy density rechargeable lithium-ion batteries. Meanwhile, cell safety is an important aspect when commercializing high-capacity Here, compatibility flame retardant pentafluoro(phenoxy)cyclotriphosphazene (FPPN) added ethylene carbonate/ethyl methyl carbonate/lithium h...

Abstract Lithium metal is the best candidate anode for high specific energy density batteries because of its capacity and low negative potential. However, lithium dendrite formation growth during plating stripping cycles have hindered use as practical batteries. Here, a mechanism suppression in composite separator Kimwipe paper (KW) porous polyethylene (PE) various electrolytes was examined. Th...

The article considers the effect of solvate environment lithium cation in various aprotic solvents.The redox reactions electrodes made from a polymeric condensation product triquinoyl with 1,2,4,5-tetraaminobenzene are studied. A 1 M LiPF6 solution was used as an electrolyte, either ethylene carbonate/dimethyl carbonate (EC/DMC) or tetraglyme. Based on electrochemical studies and quantum chemic...