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303results about How to "Effective exposure" patented technology

Nitrogen-doped porous carbon-coated metal nano composite catalyst and preparation method thereof

The invention discloses a nitrogen-doped porous carbon-coated metal nano composite catalyst and a preparation method thereof. The preparation method comprises the following steps: (1) adding a fluoride into an acidic solution for reaction, then adding M<n+1>AX<n>, carrying out magnetic stirring reaction under a water bath condition, cleaning a product with deionized water, centrifuging, then sequentially carrying out ultrasonic cleaning and centrifuging with an organic solvent and deionized water, and carrying out freeze drying so as to obtain a reactant 1; 2) weighing a certain amount of thereactant 1, adding deionized water and an organic solvent, carrying out uniform ultrasonic dispersion, dissolving a transition metal salt and urea in deionized water, adding an obtained mixture in anobtained mixed solution of the reactant 1, and carrying out magnetic stirring reaction under an oil bath condition to obtain a reactant 2; 3) performing heat treatment on the reactant 2 and a nitrogen-containing compound in a high-temperature furnace to obtain a reactant 3; and 4) performing high-temperature reduction on the reactant 3 in a protective atmosphere to obtain the nitrogen-doped porouscarbon-coated metal nano composite catalyst. According to the preparation method, the problems that the oxygen reduction catalyst prepared in the prior art is easy to agglomerate and the ORR activityis reduced due to less exposure of active sites are solved.
Owner:FOSHAN POLYTECHNIC

Liquid crystal panel for liquid crystal display device

To utilize effectively the panel space of the liquid crystal panel, this invention has provided a wiring structure, in which the seal material and BM are coated in a superposition and the UV light is irradiated from one side of the TFT substrate; this invention has also provided a wiring structure, in which the seal material can still be irradiated by the UV light with high efficiency, meanwhile, the drop of the resistance value of the metal wiring on the TFT substrate can be restricted to a specific range. The solution is: the liquid crystal dropped is sandwiched between the TFT substrate and the CF substrate, meanwhile the liquid crystal panel is formed by adhering the light cured seal material disposed at the peripheral area of two substrates. In the adhering-formed liquid crystal panel, for the wiring portion, which is the portion of wiring disposed on the TFT substrate superposing the light cured seal material, the wiring structure is formed as follows, that is, the region of the seal material is divided into three regions, an adjacent region, a middle region and an outer region. The function of the respective regions must be held, and the resistance of the metal wiring is minimized under the precondition that the respective function is satisfied sufficiently.
Owner:INFOVISION OPTOELECTRONICS HLDG LTD

Antibacterial ceramic tile and preparation method thereof

The invention discloses an antibacterial ceramic tile. The antibacterial ceramic tile comprises an antibacterial glaze layer arranged on the upper surface of a ceramic tile; the antibacterial glaze layer is composed of a basic transparent glaze and a zirconium phosphate loaded composite antibacterial agent; the zirconium phosphate loaded composite antibacterial agent comprises a zirconium phosphate carrier and a composite antibacterial agent; the zirconium phosphate loaded composite antibacterial agent is accumulated at the upper part of the antibacterial glaze layer, and antibacterial effective components of the composite antibacterial agent are antibacterial oxides and antibacterial ions. According to a preparation method, zirconium phosphate is introduced into the antibacterial glaze layer on the surface of the ceramic tile; by utilizing the characteristic of low density of zirconium phosphate, zirconium phosphate is accumulated at the upper part of the glaze layer after being sintered at a high temperature to form a surface with a porous structure, so that the zirconium phosphate is used as a carrier to which the composite antibacterial agent is attached, the binding force of antibacterial materials and the ceramic tile is enhanced, the ceramic tile is endowed with long-acting and excellent antibacterial performance, and meanwhile, the surface appearance decoration effect of the ceramic tile is not influenced. The invention further discloses a preparation process of the antibacterial ceramic tile, and the preparation process is simple in step, high in controllability and beneficial to large-scale industrial production.
Owner:FOSHAN OCEANO CERAMICS
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