5results about "Oxy/sulfo carbides" patented technology

The application discloses a preparation method of a room-temperature liquid-phase plasma constructed covalent interface silicon-based negative electrode material. x The MXene colloidal suspension mixture is subjected to plasma treatment to obtain a plasma modified suspension; S2, the plasma modified suspension is subjected to suction filtration and then annealing treatment to obtain the covalent interface silicon-based negative electrode material Si@TiO2@MXene. The application also discloses the covalent interface silicon-based negative electrode material Si@TiO2@MXene obtained by the above preparation method and application of the covalent interface silicon-based negative electrode material Si@TiO2@MXene in a lithium ion battery negative electrode and a lithium ion battery. The application realizes in-situ TiO2 interlayer growth on a silicon surface and Si-O-Ti covalent interface bonding through room-temperature liquid-phase plasma in one step, constructs a hierarchical double-constraint structure, and realizes the super-long cycle life and excellent rate performance of the silicon-based negative electrode in the lithium ion battery under high silicon content.

The application belongs to the technical field of membrane separation, and discloses a Ti3C2T x MXene quantum dot composite polyamide reverse osmosis membrane preparation method, first, Ti3C2T x MXene material is subjected to liquid nitrogen intercalation treatment and interlayer expansion, and Ti3C2T x MXene quantum dot nanomaterial; then, Ti3C2T x MXene quantum dot nanomaterial is prepared; the polyamine aqueous solution and the polyacyl chloride solution; the ultrafiltration base film is soaked in the water-phase monomer solution, the water-phase monomer solution on the film surface is blown dry; then, the base film is immersed into the organic-phase solution, interface polymerization reaction occurs, and an active layer is formed; the composite film after interface polymerization is placed and subjected to heating treatment, and interface polymerization reaction is further promoted to occur. The preparation process is simple, the prepared reverse osmosis membrane has good membrane performance, that is, has higher water flux and better anti-pollution performance.

Composite gel particles with an ammonium diuranate matrix phase and a phenolic resin phase incorporated within the ammonium diuranate matrix phase are produced from a first solution comprising uranyl nitrate, a phenol, and optionally formaldehyde, wherein the uranyl nitrate and the phenol are present in a ratio ranging from 2:1 to 25:1; and a second solution comprising hexamethylenetetramine and urea. The first solution and the second solution are mixed, and drops of the resulting mixture into a heated second liquid which is immiscible with the mixed solution. Heat from the second liquid causes the hexamethylenetetramine to decompose to form ammonia, which reacts with the uranyl nitrate to cause each of the drops to form an ammonium diuranate gel particle. The ammonium diuranate gel particles are collected. The ammonium diuranate gel particles include the phenolic resin phase within the ammonium diuranate matrix phase, where the phenolic resin phase is formed by reaction between the phenol and formaldehyde. The first solution may include uranyl nitrate, the phenol, and formaldehyde, and the formaldehyde and the phenol may react to form the phenolic resin phase prior to mixing the first solution and the second solution. The first solution may be free of formaldehyde, and heat from the second liquid may causes the hexamethylenetetramine to decompose to form formaldehyde in situ; so that the formaldehyde and the phenol react to form the phenolic resin phase while the ammonia reacts with the uranyl nitrate.

A Composition of matter defined by the general formula of M1M2M3M4M5M6M7M8M9X3, wherein: X is Carbon; and M1, M2, M3, M4, M5, M6, M7, M8 and M9 each represent a different transition metal selected from the group consisting of Ti, Ta, Sc, Cr, Zr, Hf, Mo, and Nb.

A method for producing a hydrocarbon, including: preparing a molten salt containing an oxide of a first metal; adding carbon dioxide to the molten salt; obtaining precipitates containing a first metal carbide by applying a voltage to the molten salt containing carbon dioxide; and obtaining a gas containing a hydrocarbon and a hydroxide of the first metal by hydrolyzing the first metal carbide.