4results about How to "Guaranteed to completely remove" patented technology

The invention discloses an electrocatalyst material for in-situ production of hydrogen peroxide through oxygen reduction as well as a preparation method and application of the electrocatalyst material, and belongs to the field of organic wastewater treatment. MoS2 / Fe porous conductive particles and a high-molecular polymer are adopted as main components, and ethanedioate and polyacrylamide are combined as a dispersion auxiliary solvent and a pore-forming agent to form a three-dimensional composite conductive catalyst material; through ultralow-temperature freeze drying and microwave radiation technologies, the material structure is optimized, the catalytic reaction active sites are improved, and efficient electrocatalytic oxygen reduction for in-situ production of hydrogen peroxide is realized; the MoS2 / Fe porous conductive particles not only optimize the performance of the catalyst, but also realize high-valued utilization of solid wastes; the electrocatalyst material has excellent conductivity, catalytic activity and organic wastewater degradation capability, is stable in removal effect before and after use, can be repeatedly used for multiple times, reduces the use cost, and provides a wide application prospect for the fields of environmental protection, energy and the like.

The present invention relates to an alignment pattern, a semiconductor structure having the alignment pattern and a manufacturing method thereof, the manufacturing method comprising: at least two standard pattern areas arranged along a first direction, each standard pattern area comprising at least two discrete sub-pattern areas, along the first direction, the distance between adjacent sub-pattern areas in each standard pattern area is a first distance, the distance between adjacent standard pattern areas is a second distance, and the second distance is greater than the first distance; a shielding pattern, the shielding pattern is located between adjacent standard pattern areas, and there is a gap between the shielding pattern and the adjacent standard pattern areas. The present invention can reduce the area of ​​the empty area in the alignment pattern, avoid defects caused by etching residues, and thus improve the alignment quality.

The invention belongs to the field of chemistry and chemical engineering technology and environmental protection, and relates to an active fly ash-based catalyst and preparation and application thereof in liquid-phase advanced oxidative degradation of organic pollutants, the raw materials of the catalyst comprise a fly ash raw material, an alkali activator and alcohol, the mass ratio of the fly ash raw material to the alcohol is (0.5-10): 1, and the alkali activator is an alkali activator. The mass ratio of the fly ash raw material to the alkali activator is (0.1-5.0): 1. The preparation method mainly comprises two combined steps of alcohol-alkali ball milling and low-temperature melting, that is, firstly, fly ash is subjected to mechanical ball milling treatment in the presence of a certain amount of alkali and short-chain alcohol, and then the active fly ash catalyst is prepared through the steps of low-temperature melting roasting, washing, drying and the like. Compared with the prior art, the fly ash-based catalyst provided by the invention has the characteristics of greenness, high efficiency, mild conditions, simple process and easy large-scale production, other active metal components do not need to be additionally introduced into the activated fly ash, the cost is low, and the prepared catalyst also has the advantages of high activity, broad spectrum, good stability and the like.

A kind of left auricle occluder framework high-speed electric spark milling processing manufacturing method.First, the shell with the initial form of left auricle occluder framework is prepared by base, upper casting mold, middle casting mold and lower casting mold casting, then the hole for fixing is processed to the shell by drill bit, and then the excess material on the shell is removed by high-speed electric spark discharge milling through the method of high-speed electric spark milling processing on multi-axis linkage electric spark machine tool, the mesh framework semi-finished product with the shell of the part to be processed barb is processed, and the barb is processed using the same high-speed electric spark milling processing method, and the heat treatment memory shaping is carried out through product shaping upper mold, product shaping middle mold, product shaping lower mold and base etc.Finally, the manufacturing is completed after cleaning.The high-speed electric spark milling processing manufacturing method improves the precision, surface quality and consistency of the occluder framework processing, does not need to process special electrode, improves the processing efficiency, reduces the processing cost, solves the problem that left auricle occluder framework cannot be integrally formed and manufactured, and can realize the individual customization of left auricle occluder framework in any form.