114 results about "Trihalide" patented technology

A zinc ion-exchanging battery device comprising: (A) a cathode comprising two cathode active materials (a zinc ion intercalation compound and a surface-mediating material); (B) an anode containing zinc metal or zinc alloy; (C) a porous separator disposed between the cathode and the anode; and (D) an electrolyte containing zinc ions that are exchanged between the cathode and the anode during battery charge/discharge. The zinc ion intercalation compound is selected from chemically treated carbon or graphite material having an expanded inter-graphene spacing d₀₀₂ of at least 0.5 nm, or an oxide, carbide, dichalcogenide, trichalcogenide, sulfide, selenide, or telluride of niobium, zirconium, molybdenum, hafnium, tantalum, tungsten, titanium, vanadium, chromium, cobalt, manganese, iron, nickel, or a combination thereof. The surface-mediating material contains exfoliated graphite or multiple single-layer sheets or multi-layer platelets of a graphene material.

The present invention describes a vanadium halide redox cell prior to charging, a vanadium halide redox cell in a state of charge selected from the group below, and fully charged or partially charged vanadium halide redox cells, wherein the group Consists of zero state of charge and near zero state of charge. A vanadium halide redox cell prior to charging includes a positive half-cell having a positive half-cell solution including a halide electrolyte, a vanadium(III) halide, and a vanadium(IV) halide, and a negative half-cell having a A negative half-cell solution comprising a halide electrolyte, a vanadium(III) halide and a vanadium(IV) halide, wherein the amounts of the vanadium(III) halide, vanadium(IV) halide and halide ions in the positive and negative half-cell solutions are set to such that in the first charging step comprising charging the vanadium halide redox cell prior to charging, it is possible to prepare a vanadium halide redox cell having a state of charge selected from the group consisting of zero state of charge and With a near-zero state-of-charge composition, the vanadium halide redox cell mainly includes vanadium(IV) halide in the positive half-cell solution and V(III) halide in the negative half-cell solution. A vanadium halide redox cell at a state of charge selected from the group consisting of a positive half-cell and a negative half-cell consisting of zero and near-zero states of charge, the positive half-cell having a halide electrolyte comprising: and a positive half-cell solution of a vanadium halide mainly vanadium(IV) halide, a negative half-cell having a negative half-cell solution comprising a halide electrolyte and a vanadium halide mainly of a vanadium(III) halide, wherein the positive half-cell solution The amount of vanadium(IV) halide and the amount of vanadium(III) halide in the negative half-cell solution are set such that the vanadium halide redox cell is at a state of charge selected from the group consisting of zero state of charge and close to zero state of charge composition. A fully charged vanadium halide redox cell consists of a positive half cell with a positive half cell comprising a halide electrolyte, a polyhalide complex, a vanadium(IV) halide, and a vanadium(V) halide solution, the negative half-cell has a negative half-cell solution comprising a halide electrolyte and a vanadium(II) halide, wherein the molar concentration of vanadium(V) and polyhalide complexes: the molar concentration of vanadium(II) halide is approximately stoichiometrically balanced. A partially charged vanadium halide redox cell includes a positive half cell with a positive half cell including a halide electrolyte, a polyhalide complex, a vanadium(IV) halide, and a vanadium(V) halide solution, the negative half-cell has a negative half-cell solution comprising a halide electrolyte, a vanadium (II) halide and a vanadium (III) halide, wherein the number of moles of the polyhalide complex and the vanadium (V) halide: vanadium halide ( The moles of II) are approximately stoichiometrically balanced.

The invention discloses an anode material trihalide polymer for lithium battery and the preparation method for lithium battery. Carrying out oxidative polymerization with thiofuran derivatives such as thiofuran, alkoxy thiofuran, alkyl thiofuran, hydro sulfo-thiofuran, 3, 4- sulfo thiofuran to produce poly thiofuran, poly alkoxy thiofuran, poly alkyl thiofuran, poly hydro sulfo-thiofuran, poly 3, 4- sulfo thiofuran; preparing anode with thiofuran polymer, carbon black and politef, and assembling lithium secondary battery by taking (CxF2x+1SO2)2NLi, CxF2x+1SO3Li, (CxF2x+1SO2)(CyF2y+1)NLi as electrolyte, employing dioxohexacyclic ring, dioxolane and glycol dimethyl ether as solvent, and taking metal lithium slice as negative pole. The discharge specific capacity of assembled lithium secondary battery is 400 Ah/ kg to 1200 Ah/ kg, and the cycling stability is sound.

Perfluoroaryl Grignard reagents are produced from a hydrocarbyl Grignard reagent and polyhaloaromatic compounds via separate additions of different polyhaloaromatic compounds, such that the conversion of hydrocarbyl Grignard reagent to the desired perfluoroaryl Grignard reagent is essentially complete, and thus the reaction product is free or essentially free of agents that may negatively affect subsequent reactions. The perfluoroaryl Grignard reagents may be further reacted with boron trihalides in order to obtain tris(perfluoroaryl)boranes or tetrakis(perfluoroaryl)borates.

Organic-inorganic hybrid perovskite (OIHP) based photo-responsive devices include an OIHP active layer disposed between a cathode layer and an anode layer, and an electron extraction layer disposed between the cathode layer and the active layer. The electron extraction layer includes a layer of C₆₀ directly disposed on the active layer. The active layer includes an organometal trihalide perovskite layer (e.g., CH₃NH₃PbI₂X, where X includes at least one of Cl, Br, or I).

Atactic or amorphous poly-alpha-olefins containing 100%–65% propylene and optionally up to about 35% ethylene and/or up to about 15% of a C₄–C₈ alpha-olefin are prepared by polymerizing the monomer(s) at 180–450° F. and at a pressure sufficient to substantially maintain the monomer(s) in the liquid phase. The polymerization is carried out in the presence of catalyst system consisting of (a) a transition metal halide selected from the group consisting of (i) a titanium trihalide and an aluminum alkyl, (ii) a titanium halide on a comminuted magnesium halide support, and (iii) a titanium halide sandwich compound and (b) aluminum alkyl as a co-catalyst. No stereoregulator or only minor amounts of a stereoregulator are used.

A one pot process for the preparation of sterically hindered triaryl phosphite is provided. The triaryl phosphite is of the formula P(OR)3 and is produced by reacting a hydroxyl-substituted aryl compound of formula ROH with phosphorus trihalide in a presence of a Lewis base, wherein R represents an aryl compound of a formula C6H3R1R2, wherein each R1 and R2 is an organic substituent. The process preferably comprises of mixing a substantial stoichiometric amount of 2,4-dialkyl phenol with phosphorous trihalide in methylene chloride with stoichiometric amount of pyridine. The reaction is preferably carried out at 0-5° C. and takes only 1 hr for the completion, followed by a precipitation out of isopropanol.

An improved process for bisphosphonylation of acids, substituted acids to obtain compounds with the formula

using phosphorus trihalide, phosphorus acid, in presence of phenolic compounds as diluent/solvent.

A process for producing borazane from boron-nitrogen and boron-nitrogen-hydrogen containing BNH-waste products. The process includes reacting the BNH-waste products with a hydrogen halide, having the formula HX, wherein X is selected from the group consisting of F, Cl, Br, I, and combinations thereof, to form any of the following: a boron trihalide, having the formula BX₃, an ammonium halide, having the formula NH₄X, and hydrogen. The boron trihalide is then reacted with the hydrogen to form diborane, having the formula B₂H₆, and hydrogen halide. The ammonium halide is then converted to ammonia, having the formula NH₃, and hydrogen halide. The diborane is then reacted with the ammonia to form borazane, having the formula BH₃NH₃.

The invention discloses a borazine aryne resin and a preparation method thereof. The borazine aryne resin is structurally characterized in that the polymer molecular chain contains borazine and aryl alkynyl structures. The preparation method of the resin comprises the following steps: on the basis of taking diacetylene-benzene, boron trihalide and ammonium chloride or organic primary amine as raw materials, reacting in three steps in the presence of an inert gas so as to synthesize the borazine aryne resin. The preparation method is simple in process, convenient to operate and short in reaction time, the process condition is easy to control, and the aftertreatment process is simple; the borazine aryne resin is reddish brown viscous fluid or faint yellow solid, and can be solidified in a light and thermal polymerization mode; the borazine aryne resin has excellent thermal resistance and low dielectric property, can be used for preparing an advanced resin-based composite material, can be also used as a low dielectric material, and can be widely applied to the fields of aerospace and electronic information.

The invention relates to a preparation method of 4,4-dihalotetrahydropyran, comprising the steps of mixing halogenated homoallylic alcohol, aldehydes, indium trihalide and a solvent in a flask, mixingwell to obtain a mixed liquid controlled to be -20 to 0 DEG C, dropwise adding trimethyl halogenosilane slowly, starting reaction, allowing reacting by stirring at a certain temperature for 1-24 h, adding sodium bicarbonate saturated solution for quenching reaction, after the solution layers into an organic phase and an aqueous phase, extracting the aqueous phase with methyl tertiary butyl ether,combining the extract to the organic phase, washing the obtained organic phase with saturated salt water, drying, evaporating to remove an organic solvent to obtain a crude product, and subjecting the crude product by separation and purification by column chromatography to obtain a finished product that is applicable to the field of flame retardants and the field of pesticides. The preparation method has simple process and high yield of product, the product has high purity, indium trihalide of catalyst quantity is used in the reaction system, indium consumption is low, the catalyst cost is low, and the preparation method is economical and practical.

The invention discloses a preparation method for phosphous dihalide with substituent, which comprises: using phosphous trihalide, phosphoryl phosphous trihalide or sulphuryl group to react with a metal tetra-alkyl, tetraene or tetra-aryl compound for 0.5~300h at 0~350Deg regardless the catalyst and solvent. This invention needs mild condition, and has high yield.

The present invention relates to a load type catalyst containing nickel and iron and its application. It uses high specific area cross-linked polyacrylic ion-exchange resin powder body as load carrier of catalyst, and makes it and nickel dihalide and iron trihalide undergo the process of coordinative complexation reaction to form the load catalyst. The load catalyst can be mixed with initiator, monomer and solvent according to a certain ratio, and formed into a solid-liquid reaction systm which can be used for catalyzing controllable free radical polymerization. After the reaction is completed, then reaction product and catalyst can be simply separated, and the metal catalyst residue in the product is less, and said catalyst can be recovered and reused.