How to Surface oxidation?

Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.

Hiro

3 results about "Surface oxidation" patented technology

Filter

Efficacy Topic

Property

Owner

Technical Advancement

Application Domain

Technology Topic

Technology Field Word

Patent Country/Region

Patent Type

Patent Status

Application Year

Inventor

Surface oxidation process is used to create a gate insulator film of the transistor or oxide films which required forming insulation between wiring layers.

Porous high-entropy alloy self-supporting electrode for electrolyzing water and preparation method thereof

ActiveCN112725818AExcellent decomposabilityLow costNon-noble metal oxide coatingsHigh entropy alloysSurface oxidation

The invention discloses a porous high-entropy alloy self-supporting electrode for electrolyzing water and a preparation method thereof. The preparation method comprises the following steps: smelting, mixing and melting nickel powder, cobalt powder, chromium powder, iron powder, aluminum powder and tungsten powder, and conducting cooling to form a high-entropy alloy with an eutectic structure; cutting the high-entropy alloy into an alloy sheet, and conducting polishing to remove surface oxide skins; then carrying out dealloying treatment; and after dealloying treatment is completed, taking out the alloy sheet and carrying out ultrasonic treatment so as to obtain the self-supporting electrode. The invention provides a simple, efficient and controllable dealloying means for treating the high-entropy alloy sheet to obtain the sheet-shaped high-entropy alloy self-supporting catalytic electrode with a multi-scale pore structure, and the sheet-shaped high-entropy alloy self-supporting catalytic electrode is proved to have excellent electro-catalytic hydrogen evolution / oxygen evolution reaction activity and stability.

Porous high-entropy alloy self-supporting electrode for electrolyzing water and preparation method thereof

View all

Owner:NORTHWESTERN POLYTECHNICAL UNIV

Spray method for preparing oxidation-resisting phosphorous copper alloy powder

InactiveCN106048298AGood sphericityUniform compositionTransportation and packagingMetal-working apparatusSurface oxidationIntermediate frequency

The invention discloses a spray method for preparing oxidation-resisting phosphorous copper alloy powder. The spray method is characterized in that the oxidation-resisting phosphorous copper alloy powder is prepared by the following components: 500 parts of raw copper powder, 25-30 parts of tin power, 8-10 parts of phosphorus powder, 3-7 parts of benzotriazole, 3-7 parts of benzene sulfonic acid sodium salt and 6-8 parts of glycerol. By smelting the raw materials through intermediate frequency smelting equipment and adjusting the contents of copper, tin and phosphorus, the product lead-free effect is realized, and the oxidation-resisting phosphorous copper alloy powder is prepared by the spray method. The prepared oxidation-resisting phosphorous copper alloy powder has the characteristics of good sphericity, component uniformity, good moldability, excellent sinterability and low surface oxidation. The spray method is low in production cost, high in production efficiency and stable in product quality.

Owner:安徽旭晶粉体新材料科技有限公司

Diaphragm for efficient lithium ion secondary battery and preparation method thereof

ActiveCN111341975AImprove flame retardant performanceReduce the risk of explosionSecondary cellsCell component detailsActivated carbonSurface oxidation

The invention discloses a diaphragm for an efficient lithium ion secondary battery. The diaphragm comprises polyethylene microporous layers and a composite material coating. The thickness of each polyethylene microporous layer is 5-10 [mu]m, the pore diameter is 0.03-0.12 [mu]m, and the porosity is 40-50%. The thickness of each composite material coating is 5-10 [mu]m. The material coating comprises the following raw materials in parts by weight: 90-95 parts of organic silicon resin, 5-10 parts of modified activated carbon and 20-30 parts of a curing agent, wherein the water content of the organic silicon resin is 0.5-1%, the modified activated carbon is modified activated carbon obtained by surface oxidation, and the modified activated carbon is nano modified activated carbon. The diaphragm comprises the polyethylene microporous layers and the composite material coating, and is specifically of a polyethylene-composite material-polyethylene layered structure, and organic silicon resinin the composite material layer has good flame retardance, so that the explosion risk of the battery is reduced.

Owner:SICHUAN YOUYUAN NEW ENERGY CO LTD

3 results about "Surface oxidation" patented technology

Porous high-entropy alloy self-supporting electrode for electrolyzing water and preparation method thereof

Spray method for preparing oxidation-resisting phosphorous copper alloy powder

Diaphragm for efficient lithium ion secondary battery and preparation method thereof

Popular searches