Abstract:
Disclosed are methods of forming a dielectric material. One method comprises modifying a tungsten bronze crystal structure by substituting one or more lattice sites with one or more elements selected to increase a quality factor (Q) of the dielectric material.
Abstract:
An organically surface-bonded metal or metal oxide material including an inorganic metal or metal oxide and an organic material. The organic material is coated on the surface of the inorganic metal or metal oxide. The inorganic metal or metal oxide and the organic material are linked through a strong chemical bond. The strong chemical bond includes a covalent bond between a metal in the inorganic metal or metal oxide and a nitrogen in the organic material.
Abstract:
Systems and methods for generating reactive oxygen species formulations useful in various oxidation applications. Exemplary formulations include singlet oxygen or superoxide and can also contain hydroxyl radicals or hydroperoxy radicals, among others. Formulations can contain other reactive species, including other radicals. Exemplary formulations containing peracids are activated to generate singlet oxygen. Exemplary formulations include those containing a mixture of superoxide and hydrogen peroxide. Exemplary formulations include those in which one or more components of the formulation are generated electrochemically. Formulations of the invention containing reactive oxygen species can be further activated to generate reactive oxygen species using activation chosen from a Fenton or Fenton-like catalyst, ultrasound, ultraviolet radiation or thermal activation. Exemplary applications of the formulations of the invention among others include: cleaning in place applications, water treatment, soil decontamination and flushing of well casings and water distribution pipes.
Abstract:
A process for preparing hollow ceramic or metal microspheres, comprising the steps of: forming ceramic or metal slurry, comprising ceramic or metal powders, water and dispersant and having a certain solid phase content, into a stable foam slurry by using a foaming agent; introducing the stable foam slurry into a centrifugal atomization equipment to atomize it into hollow slurry droplets, while being sprayed into a molding chamber; drying rapidly to form hollow microsphere green body; collecting the hollow microsphere green body and sintering. The hollow microsphere prepared has a particle size of 0.001-1.5 mm and high quality and low cost. The process is adapted to produce various inorganic material powders into hollow microspheres. The present invention also provides a device for preparing hollow ceramic or metal microspheres and hollow microspheres.
Abstract:
A method for manufacturing a fatty acid metal salt particle includes forming a coating layer including a fatty acid metal salt on a surface of a core material particle in supercritical carbon dioxide.
Abstract:
A metal storage material, containing a perovskite-type composite oxide of formula (1), which is a material to stores a metal component of a metal-containing material: ABHaO3-b Formula (1) in which A is at least one selected from lanthanoid elements and Group 2 elements of the periodic table, and B is at least one selected from Groups 3, 4, and 13 elements, and transition metal elements of the fourth period of the periodic table; a and b are quantities of hydrogen and oxygen vacancies, within the range of: 0≦a≦1.0, 0≦b≦0.5, respectively; and a method of recovering a metal, containing the steps of: heating the metal-containing material, in the presence of the perovskite-type composite oxide; dissolving, in an acid, the composite oxide which stores a metal, to give an eluate of the metal; and recovering the metal, from the eluate.
Abstract translation:一种金属储存材料,其含有式(1)的钙钛矿型复合氧化物,其是用于储存含金属材料的金属成分的材料:ABHaO3-b(1)其中A是选自镧系元素中的至少一种 元素和元素周期表第2族元素,B为选自第3,4族元素和元素周期表第四周期的过渡金属元素中的至少一种元素; a和b分别为0 @ a @ 1.0,0 @ b @ 0.5范围内的氢和氧空位量; 以及回收金属的方法,包括以下步骤:在钙钛矿型复合氧化物的存在下加热含金属材料; 在酸中溶解存储金属的复合氧化物,得到金属的洗脱液; 并从洗脱液中回收金属。
Abstract:
Partly hydrophobic metal oxides are prepared by silylating a metal oxide with I) an organosilane of the formula R1nSiX4-n where n is 1, 2 or 3 or mixtures of these organosilanes, R1 each being an identical or different monovalent, optionally halogenated hydrocarbon radical having 1 to 24 carbon atoms, and being saturated, aromatic, monounsaturated, or polyunsaturation, X being halogen, a nitrogen-containing radical, OR2, OCOR2, O(CH2)xOR2, R2 being hydrogen or a monovalent hydrocarbon radical having 1 to 12 carbon atoms, x being 1, 2 or 3; or II) an organosiloxane composed of units of the formula (R13SiO1/2), and/or (R12SiO2/2), and/or (R1SiO3/2), the number of R1 units in one organosiloxane being at least 2; I and II used individually or in any desired mixture in a total amount of from 0.015 mmol/g to 0.15 mmol/g per 100 m2/g of metal oxide BET surface area.
Abstract translation:部分疏水性金属氧化物是通过用I)式R 1 n SiX 4-n的有机硅烷(其中n为1,2或3)或这些有机硅烷的混合物(其各自为相同或不同的单价任选卤代烃基) 1至24个碳原子,并且是饱和的,芳族的,单不饱和的或多不饱和的,X是卤素,含氮基团,OR 2,OCOR 2,O(CH 2)x OR 2,R 2是氢或具有1至12个碳原子的一价烃基 原子,x为1,2或3; 或II)由式(R13SiO1 / 2)单元和/或(R12SiO2 / 2)和/或(R1SiO3 / 2)组成的有机硅氧烷,一个有机硅氧烷中的R 1单元数至少为2; I和II单独或以任何所需的混合物总量为0.015mmol / g至0.15mmol / g / 100m2 / g的金属氧化物BET表面积。
Abstract:
A technique for bonding an organic group with the surface of fine particles such as nanoparticles through strong linkage is provided, whereas such fine particles are attracting attention as materials essential for development of high-tech products because of various unique excellent characteristics and functions thereof. Organically modified metal oxide fine particles can be obtained by adapting high-temperature, high-pressure water as a reaction field to bond an organic matter with the surface of metal oxide fine particles through strong linkage. The use of the same condition enables not only the formation of metal oxide fine particles but also the organic modification of the formed fine particles. The resulting organically modified metal oxide fine particles exhibit excellent properties, characteristics and functions.
Abstract:
Nanoscale materials with domain sizes less than 100 nanometers and unusual shapes and morphologies are disclosed. A broad approach for manufacturing oxide and non-oxide nanomaterials with aspect ratio different than 1.0 is presented. Methods for engineering and manufacturing nanomaterials' size, shape, surface area, morphology, surface characteristics, surface composition, distribution, and degree of agglomeration are discussed. The methods taught includes the use of surfactants, dispersants, emulsifying agents in order to prepare precursors, which are then processed into novel nanoscale particle morphologies.
Abstract:
A dye sensitized solar cell comprising, as the dye electrode, a titanium oxide structure having an optical band gap (hereinafter referred to as “BG”) of 2.7 to 3.1 eV as calculated from absorbance measured by an integrating sphere-type spectrophotometer, or a metal oxide structure obtained by dry-mixing a plurality of metal oxide powder particles differing in the particle size or a metal oxide dispersion thereof, wherein assuming that the BG of raw material metal oxide is BG0 and the BG of metal oxide after the dry mixing is BG1, the (BG0-BG1) is from 0.01 to 0.45 eV, and a production method thereof are provided.