30 results about "Titanium sulfide" patented technology

Provided is a novel lithium titanium sulfide, lithium niobium sulfide, or lithium titanium niobium sulfide endowed with the excellent charge / discharge performance (especially the excellent charge / discharge capacity and charge / discharge potential) useful for a positive electrode active material or the like for a lithium battery such as a metal lithium secondary battery or a lithium ion secondary battery by a sulfide containing lithium, titanium and / or niobium, and sulfur as constituent elements. Particularly preferred are (1) lithium titanium sulfide containing lithium, titanium, and sulfur as constituent elements and having a cubic rock-salt crystal structure, (2) lithium niobium sulfide containing lithium, niobium, and sulfur as constituent elements and having a diffraction peak at a specific position in an x-ray diffractogram, (3) lithium titanium niobium sulfide containing lithium, titanium, niobium, and sulfur as constituent elements and having a diffraction peak at a specific position in an x-ray diffractogram, or the like.

The invention discloses a hydrogenation catalyst modified by a solid-phase modifier and its application. The hydrogenation catalyst is a mixture of a supported palladium catalyst and a solid-phase modifier, or is supported by a solid-phase modifier. metal palladium material; when the hydrogenation catalyst is a mixture of a supported palladium catalyst and a solid phase modifier, the mass ratio of the solid phase modifier to the loaded palladium catalyst is 0.1 to 500:1; when the hydrogenation catalyst is a mixture of When the solid-phase modifier is a metal palladium material loaded on a carrier, the loading amount of metal palladium is 0.1-20wt%; the solid-phase modifier is polyphenylene sulfide or metal sulfide, and the metal sulfide is silver sulfide, barium sulfide, At least one of cadmium sulfide, cerium sulfide, ferrous sulfide, ferrous disulfide, lithium sulfide, sodium sulfide, nickel sulfide, manganese sulfide, molybdenum sulfide, selenium sulfide, tungsten sulfide, zinc sulfide, copper sulfide, titanium sulfide. The hydrogenation catalyst of the present invention has high catalytic activity in the selective hydrogenation reaction of alkynes, and can effectively improve the catalytic selectivity of target olefin products.

The invention discloses a method for applying a molybdenum carbide-dispersed copper oxide-titanium trisulfide catalyst to tetrahydrofurfuryl alcohol for catalytic hydrogenation to produce 1,5-pentanediol. Copper oxide is used as an active component, and iron, cobalt and nickel are used , one or several modified metals in zinc, chromium and vanadium are modified, titanium trisulfide is used as a co-catalyst, the composite component is supported on a molybdenum carbide carrier, and it is applied to the catalytic conversion of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol. The method adopts non-precious metal to prepare the catalyst, and has low cost and good stability.

The invention provides a battery composite positive electrode and an electrochemical battery composed thereof, the composite positive electrode includes lithium iron manganese phosphate LiFe 1‑ x mn x PO 4 , titanium disulfide TiS 2 , the addition of a small amount of titanium disulfide provides the function of "discharge end indication" and solves the problem of lithium iron manganese phosphate LiFe 1‑x mn x PO 4 The voltage is flat during the discharge process, and the curve bends downward only when the end discharge voltage is approaching. There is no obvious characteristic problem when reaching the end discharge voltage, and the control of the end discharge voltage is realized.

The invention relates to a positive electrode for a zinc-bromine flow battery. The positive electrode uses a conductive current collector as a substrate, and a catalytic material is supported on the substrate. The catalytic material is carbon-coated titanium disulfide, and the conductive current collector is used. For nickel foam or carbon felt. The present invention starts from the electrode. The electrode in the flow battery provides a reaction site for the electrochemical reaction. If the generated bromine element can be completely reacted during the discharge process, the concentration of bromine in the electrolyte solution in the subsequent cycle process will be greatly reduced, reducing the Osmotic contamination of elemental bromine.