11 results about "Alkyne formation" patented technology

The invention relates to the technical field of batteries, in particular to an electrolyte, a battery monomer, a battery device and an energy storage device. The electrolyte comprises a cyano siloxane compound shown in the formula, R1, R2, R3 and R4 independently comprise one of cyano, hydrogen, substituted or unsubstituted alkane, substituted or unsubstituted alkylene and substituted or unsubstituted alkyne, and at least two of R1, R2, R3 and R4 comprise cyano; r5, R6, R7, R8, R9 and R10 each independently comprise a substituted or unsubstituted alkane group. The electrolyte provided by the invention has good stability at normal temperature and high temperature, and is not easy to decompose.

The invention discloses a preparation method of tris (propargyl) phosphorus oxide, and belongs to the technical field of battery electrolyte additives, and the preparation method specifically comprises the following steps: S1, carrying out low-temperature in-situ Grignard exchange and addition reaction, the method comprises the following steps: carrying out in-situ Grignard exchange and addition reaction on phosphorus trichloride, an alkyl lithium reagent and propargyl alcohol in an organic solvent to generate an intermediate tris (propargyl) phosphorous acid; s2, oxidation reaction: adding an oxidizing agent into the reaction system obtained in the step S1, and carrying out oxidation reaction to obtain tris (propargyl) phosphorus oxide; according to the method, the technical bottleneck of preparing the phosphorus-containing alkyne additive by a traditional fractional step method is broken through, a one-pot low-temperature synchronous dropwise adding in-situ reaction process is initiated, and efficient and high-selectivity synthesis of tris (propargyl) phosphorus oxide is realized.

The invention relates to the technical field of batteries, in particular to an electrolyte, a battery monomer, a battery device and an energy storage device. The electrolyte provided by the invention comprises a first additive, and the first additive comprises a fluorosulfonamide compound and an isocyanate compound, r1 and R2 respectively and independently comprise one of hydrogen, fluorine, substituted or unsubstituted alkane, substituted or unsubstituted alkylene, substituted or unsubstituted alkyne, substituted or unsubstituted alkyl carbonyl and substituted or unsubstituted alkyl nitrile, and at least one of R1 and R2 contains a fluorine element; and R3 comprises one of a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkyl carbonyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group and a substituted or unsubstituted heterocyclic group. Under the synergistic effect of the fluorosulfonamide compound and the isocyanate compound, the electrolyte has good stability and is not easy to decompose.

The invention provides a method for synthesizing delta-lactam containing a quaternary carbon center through nickel catalysis three-level C (sp3)-H activation. The invention relates to a method for constructing a quaternary carbon center-containing delta-lactam compound by activating and inserting alkyne into a three-level C-H bond of a formamide compound by connecting a phosphorus-oxygen ligand with a nickel-aluminum bimetallic catalyst, and belongs to the technical field of methodology development. The key points of the invention to solve the problem are as follows: (1) the coordination of Al to the substrate activates the substrate; (2) the bridging effect of the ligand guides the metal Ni to generate three-stage C-H bond fracture; (3) the catalyst and a substrate form a stable acyl Ni intermediate with a cyclic structure, and decarbonylation decomposition of the intermediate is inhibited; and (4) a protecting group with proper steric hindrance can repel a three-level C-H bond, so that the protecting group is close to the metal Ni center to be activated.

A solution including at least one metal salt, a reducing agent which makes it possible to reduce the metal salt, and a stabilising additive of formula F1 in which the Ra, Rb and Rc groups denote, independently of one another, an alkane, an alkene or an alkyne, which may be independently linear, branched or cyclic and which include from 1 to 20 carbon atoms, and where the Rd and Re groups denote, independently of one another, a hydrogen atom, or an alkane, an alkene or an alkyne, which may each be independently linear, branched or cyclic and which include from 1 to 20 carbon atoms.

The application discloses a carbon four alkyne selective hydrogenation catalyst and a preparation method thereof. The carrier alumina is a leaf-shaped aggregate structure. The carbon four alkyne selective hydrogenation catalyst comprises 8-25 wt% of nickel oxide, 0.05-5 wt% of silver oxide, 0-1.5 wt% of copper oxide and the rest of the carrier. The carbon four alkyne selective hydrogenation catalyst prepared by the application has the characteristics of high selectivity and good stability, and can be used to effectively reduce the alkyne content in carbon four fractions.

The invention belongs to the technical field of catalysts, and particularly discloses a Pd monatomic and nanoparticle synergistic catalyst and a preparation method and application thereof.The active component Pd of the catalyst is loaded on a zirconium phosphate carrier in the forms of monatomic and nanoparticles; the zirconium phosphate carrier is of an amorphous structure, and the specific surface area is 120-180m < 2 > / g; and the mass fraction of the active component Pd in the catalyst is 0.3-3 wt%. The invention solves the problem that the activity, stability and selectivity of the catalyst in the alkyne semi-hydrogenation reaction cannot be combined at the same time through the simple synthesis method.

The application belongs to the technical field of functional materials, and particularly relates to modified graphene oxide based on wet chemical modification and a preparation method thereof. The preparation method of the modified graphene oxide based on wet chemical modification comprises the following steps: S1: performing a thiol-ene click reaction on graphene oxide to obtain mesoporous-containing graphene oxide; and S2: performing alkyne group modification on the mesoporous-containing graphene oxide to obtain alkyne group-modified graphene oxide, and then performing an azide-alkyne click reaction on the alkyne group-modified graphene oxide and azide-POSS to obtain modified graphene oxide based on wet chemical modification. The modified graphene oxide with a specific spatial structure is prepared, the specific surface area of the material can be effectively increased, and the stability under a high-temperature environment can be improved.

The invention discloses a method for synthesizing a silicon-group-containing tetra-substituted olefin compound through nickel catalysis, and belongs to the technical field of organic synthesis. According to the invention, nickel is adopted to catalyze a cascade reaction of three components of alkynyl silane, aryl iodide and an organic aluminum reagent, migration and insertion of alkyne by an aryl nickel intermediate are regulated and controlled through an alpha silicon-based effect to form an alkenyl nickel intermediate, and a metal conversion reaction is further carried out; two functional groups are successfully introduced into alkynyl to construct a series of silicon-containing tetra-substituted olefin compounds, the application of an organic aluminum reagent in a three-component coupling reaction is expanded, and a new method is provided for high-regioselectivity synthesis of tetra-substituted olefin.

This invention belongs to the semiconductor field, specifically relating to a stress-controllable amorphous carbon film and its preparation method. The stress of the amorphous carbon film of this invention ranges from -100 to 100 MPa. This invention employs traditional PECVD thin film deposition conditions, controlling the doping ratio of deposition gases such as C2-C4 alkynes, C2-C4 alkenes, and C1-C4 alkanes to obtain amorphous carbon films with specific tensile stress, compressive stress, and neutral stress. This invention develops a method for preparing stress-controllable amorphous carbon films through deposition gas doping. This method is simple, the process is stable and controllable, and process adjustment parameters can be added, making it suitable for processes with high requirements for stress conditions.

The invention discloses a carbon electrode full-inorganic perovskite cell comprising an alkyne derivative and a preparation method thereof, and belongs to the technical field of perovskite solar cells. According to the method, tetra (4-ethynylphenyl) methane (TEPM) is introduced into a perovskite precursor solution, and the method is obviously different from a traditional process. Ethynyl (-C is equivalent to CH) in TEPM molecules has sp hybrid carbon atoms, lone pair electrons of the acetenyl (-C is equivalent to CH) can serve as ligands to form coordinate bonds with under-coordinated Pb < 2 + > in perovskite, and defects are effectively passivated; meanwhile, TEPM regulates and controls the crystallization process of the perovskite thin film through a steric hindrance effect and pi-pi interaction, and the morphology and the crystallization quality of the thin film are improved; and the conjugated structure can also enhance the charge transfer efficiency and reduce the non-radiative recombination loss.