With an aim to provide a method for producing an oxide particle with controlled color characteristics and also provide an oxide particle with controlled color characteristics, the present invention provides a method for producing an oxide particle, wherein the color characteristics of the oxide particle are controlled by controlling a ratio of an M-OH bond between an element (M) and a hydroxide group (OH) or an M-OH bond/M-O bond ratio, where the element (M) is one element or plural different elements other than oxygen or hydrogen included in the oxide particle selected from metal oxide particles and semi-metal oxide particles. According to the present invention, by controlling the M-OH bond or the M-OH bond/M-O bond ratio of the metal oxide particle or the semi-metal oxide particle, the oxide particle with controlled color characteristics of any of reflectance, transmittance, molar absorption coefficient, hue, and saturation can be provided.

An electromagnetic wave absorbing laminated transparent base material includes a plurality of sheets of transparent base materials; and an electromagnetic wave absorbing particle dispersoid including at least electromagnetic wave absorbing particles and a thermoplastic resin. The electromagnetic wave absorbing particles contain hexagonal tungsten bronze having oxygen deficiency. The tungsten bronze is expressed by a general formula: M.sub.xWO.sub.3−y (where one or more elements M include at least one or more species selected from among K, Rb, and Cs, 0.15≤x≤0.33, and 0<y≤0.46). Oxygen vacancy concentration N.sub.V in the electromagnetic wave absorbing particles is greater than or equal to 4.3×10.sup.14 cm.sup.−3 and less than or equal to 8.0×10.sup.21 cm.sup.−3. The electromagnetic wave absorbing particle dispersoid is arranged between the plurality of sheets of the transparent base materials.

An activated carbon-coated carbon black material having a nitrogen BET surface area of about 850 to 1800 m.sup.2/g, a packing density of at least 0.8 g/cc as determined at a compressive force of 500 kgf/cm.sup.2 on dry carbon powder, an electrical conductivity of a least 10 S/cm at a compressive force of 500 kgf/cm.sup.2 on dry carbon powder and electrodes and batteries comprising the carbon material. Methods for preparing such carbon materials from sugar, dextrose, oils and carbon black are described. The material is comprised of carbon black particles coated with a porous activated carbon shell.

This invention provides solid substrates for promoting cell or tissue growth or restored function, which solid substrate is characterized by a specific fluid uptake capacity value of at least 75%, which specific fluid uptake capacity value is determined by establishing a spontaneous fluid uptake value divided by a total fluid uptake value. This invention also provides solid substrates for promoting cell or tissue growth or restored function, which solid substrate is characterized by having a contact angle value of less than 60 degrees, when in contact with a fluid. This invention also provides solid substrates for promoting cell or tissue growth or restored function, which said substrate is characterized by a substantial surface roughness (Ra) as measured by scanning electron microscopy or atomic force microscopy. The invention also provides for processes for selection of an optimized coral-based solid substrate for promoting cell or tissue growth or restored function and applications of the same.

A quantum dot luminescent material and a method of producing thereof. The quantum dot luminescent material includes a hole injection layer, a hole transport layer, a quantum dot light emitting layer, an electron transport layer, and an electron injection layer. The quantum dot luminescent layer is located on the hole transport layer, and the quantum dot luminescent layer includes uniformly distributed perovskite nanodots.

The present invention pertains to a hydrous silica for rubber-reinforcing filler, having a BET specific surface area ranging from 230 to 350 m.sup.2/g, and satisfies the following: a) the pore volume of 1.9 nm to 100 nm pore radius measured by the mercury press-in method (V.sub.HP-Hg) ranges from 1.40 to 2.00 cm.sup.3/g; b) total pore volume in the range of 1.6 nm to 100 nm pore radius by the nitrogen adsorption/desorption method (V.sub.N2) ranges from 1.60 to 2.20 cm.sup.3/g; and c) the pore volume ratio of (a) and (b) V.sub.HP-Hg/V.sub.N2 ranges from 0.70 to 0.95. This invention provides a hydrous silica capable of further improving reinforcing properties of a rubber, particularly the wear resistance by improving dispersibility of the hydrous silica in the rubber in addition to rubber reinforcing properties obtained by a high BET specific surface area.

The invention discloses a metal and semi-metal oxide powder that, when applied to an environment, inhibits the growth of colonies of microorganisms, wherein the powder includes particles comprising a particle size distribution between 0.1 to 100 microns, which are formulated as a strongly bonded, porous, composite of nano-scale grains of materials wherein the grains have a surface area of 75 to 300 m.sup.2/g and which have less than about 10.sup.−4% of free radical species by weight, and wherein the powder is adapted to release reactive oxygen species (ROS) burst when the particles come into contact with a microorganism.

The present application discloses an artificial graphite, a secondary battery, a preparation method and an apparatus. The artificial graphite includes secondary particles formed by agglomeration of primary particles, the artificial graphite having a volume average particle size Dv50, denoted as A, the artificial graphite through powder compaction under a pressure of 2000 kg having a volume average particle size Dv50, denoted as B, wherein A and B satisfies: B/A≥0.85. Using the artificial graphite provided by the present application can greatly reduce the cyclic expansion of the secondary battery.

A super-hydrophilic carbon nanotube composite film includes a carbon nanotube layer, a polydopamine layer and a silicon dioxide layer. The carbon nanotube layer includes a plurality of carbon nanotubes and defines two opposite surfaces. The polydopamine layer is on at least one surface of two opposite surfaces of the carbon nanotube layer, and the polydopamine layer includes a plurality of polydopamine nanoparticles. The silicon dioxide layer is on a surface of the polydopamine layer away from the carbon nanotube layer, and the silicon dioxide layer includes a plurality of amino-containing silica nanoparticles, and the plurality of amino-containing silica nanoparticles are grafted onto the surface of the polydopamine layer.

Provided are a porous structure and a method of fabricating the same. The porous structure may include an aluminum oxide containing at least one of fluorine and phenyl group. For example, the porous structure may be formed from alumina which contains fluorine or phenyl group. The method of fabricating the porous structure may include preparing an aluminum precursor including at least one of fluorine and phenyl group; providing a precursor solution by mixing the precursor with a solvent; and forming the porous structure having 3-dimensional network structure including the aluminum oxide containing the at least one of fluorine and phenyl group from the precursor solution through gelation.