The present invention provides composition comprising a metal oxide semiconductor nanomaterial coated or dispersed with a hemostatic polymer.

Provided herein are solid materials that are ionically conductive and electrochemically stable. Embodiments of the solid materials are argyrodite-type compositions that have high ionic conductivity. The compositions include small amounts of thiophilic metals, whose binary sulfides do not react with water to hydrogen sulfide (H.sub.2S). As such, H.sub.2S release is minimized or eliminated. Also provided are methods of fabricating the materials and batteries and battery components containing the materials.

Provided herein are solid materials that are ionically conductive and electrochemically stable. Embodiments of the solid materials are argyrodite-type compositions that have high ionic conductivity. The compositions include small amounts of thiophilic metals, whose binary sulfides do not react with water to hydrogen sulfide (H.sub.2S). As such, H.sub.2S release is minimized or eliminated. Also provided are methods of fabricating the materials and batteries and battery components containing the materials.

The present disclosure relates to a method for preparing high-temperature superconducting yttrium barium copper oxide (YBCO) wire by 3D-printing, this method is divided into the following four steps: firstly, preparing a nano-level superconducting powder precursor; and then, preparing a printing paste with suitable viscosity and supporting characteristics; after that, using a CAD 3D modeling, exporting STL format model data and slicing by a professional software; implementing one-step preparing strands with low AC loss by twisting the print nozzle. Finally, the printed twisted wire is formed into a practical superconducting twisted cable through the processes such as plastic removal process, crystallizing process, oxygen supplementing process and assembling process in order. The present disclosure firstly provides an application for applying high temperature superconducting material to direct ink writing 3D-printing technology. By preparing micro/nano level superconducting core filaments based on 3D-printing, the diameter of the core filaments could be reduced, and thereby a material-structure integrative design could be implemented. The present disclosure simplifies the preparation of high temperature superconducting wires, improves the current-carrying capacity and the production efficiency of the high temperature super conducting wires, and reduces the production cost.

A method for forming a crystalline material having an anisotropic, quasi-one-dimensional crystal structure is disclosed. In various embodiments, the method includes: mixing a plurality of precursor materials together to form a combined precursor material, the plurality of precursor materials including a transition-metal ion or a main group ion and at least one of an alkaline earth ion or an alkali metal ion; and reacting the combined precursor material to obtain the crystalline material, the crystalline material having a formula ABX3, wherein A is the at least one of the alkaline earth ion or the alkali metal ion and B is the transition-metal ion surrounded by six anions (X), and wherein the quasi-one-dimensional anisotropic crystal provides a birefringence of at least 0.03, defined as the absolute difference in the real part of the complex-refractive-index values along different crystal axes, in at least a portion of one or N both of the visible-wave spectrum or the infrared spectrum.

The invention discloses a porous intermetallic compound and preparation method and application thereof. The pore structure of the porous intermetallic compound includes micropores and mesopores, and the micropores and mesopores are distributed in disorder, wherein the content of the micropores accounts for 6-68%, and the content of mesopores accounts for 32-92%; the specific surface area of the porous intermetallic compound is 50-1600 m.sup.2/g, and the porous intermetallic compound is a porous copper silicide intermetallic compound or porous copper-chalcogen intermetallic compound. The invention provides preparation methods of the porous intermetallic compound, and also provides an application of the porous intermetallic compound as a catalyst in the reaction of acetylene hydrochlorination to synthesize vinyl chloride. The porous intermetallic compound catalyst prepared by the invention can carry out the acetylene hydrochlorination reaction in a wide space velocity range, and has good catalytic activity.

An object of the present invention is to provide a photocatalyst for water splitting, which can form a water splitting device that is excellent in durability and responsiveness to visible light and excellent in the amount of generated gas, and a water splitting device having the photocatalyst for water splitting. A photocatalyst for water splitting according to the embodiment of the present invention is a photocatalyst for water splitting, which is used for an electrode that generates gas by irradiation with light in a state of being immersed in water, and includes a compound represented by a formula, (Ln).sub.2CuO.sub.4. In the formula, Ln represents a lanthanoid, and a part of Ln's may be substituted with an element of Groups II to IV of the periodic table.

By using a potassium ion secondary battery positive electrode active material comprising a potassium compound represented by general formula (1): K.sub.nMO.sub.m, wherein M is copper or iron, n is 0.5 to 3.5, and m is 1.5 to 2.5, provided is a potassium ion secondary battery positive electrode active material having higher theoretical discharge capacity and higher effective capacity than a potassium secondary battery using Prussian blue as a positive electrode active material.

Disclosed are a superconductor having improved critical current density when exposed to high-energy neutron radiation and high magnetic fields, such as found in a compact nuclear fusion reactor, and a method of making the same. The method includes, prior to deployment in the exposure environment, irradiating a polycrystalline (e.g. cuprate) superconductor with ionic matter or neutrons at a cryogenic temperature to create weak magnetic flux pinning sites, such as point defects or small defect clusters. Irradiation temperature is chosen, for example as a function of the superconducting material, so that irradiation creates the beneficial flux pinning sites while avoiding detrimental widening of the boundaries of the crystalline grains caused by diffusion of the displaced atoms. Such a superconductor in a coated-conductor tape is expected to be beneficial when used, for example, as a toroidal field coil in a fusion reactor when cooled well below its critical temperature.

The present invention provides an oxide superconducting bulk magnet which can obtain a sufficient amount of total magnetic flux, by preventing the superconducting bulk body from being broken due to electromagnetic stress and quenching phenomenon to enable magnetization by a strong magnetic field. An oxide superconducting bulk magnet comprising an oxide superconducting bulk body wherein RE.sub.2BaCuO.sub.5 is dispersed in a monocrystalline RE.sub.1Ba.sub.2Cu.sub.3O.sub.y; and an outer peripheral reinforcing ring fitted to the outer periphery of the oxide superconducting bulk body, wherein the outer peripheral reinforcing ring is made of a plurality of metal rings having a multiple ring structure in the radial direction, at least one of the plurality of metal rings has a thermal conductivity of 20 W/(m.Math.K) or more at a temperature of 20 to 70 K and at least one of the plurality of metal rings has a higher strength than the metal ring having a thermal conductivity of 20 W/(m.Math.K) or more.