Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method for preparing large-area copper Cu(111) monocrystal

A single crystal, copper foil technology, applied in the field of materials, can solve problems such as limiting the application of copper foil

Active Publication Date: 2019-09-24
INST OF CHEM CHINESE ACAD OF SCI +1
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, commercially available commercial copper foils are all polycrystalline copper foils, in which there are a large number of grain boundaries, which limit the application of copper foils

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing large-area copper Cu(111) monocrystal
  • Method for preparing large-area copper Cu(111) monocrystal
  • Method for preparing large-area copper Cu(111) monocrystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] In the first step, the 100 μm thick commercial copper foil (purity 99.9%) is cut into a size of about 4cm × 6cm, and electrochemically polished in an ethanol / phosphoric acid system (wherein, the specific composition of the polishing solution is: deionized water ( mL), phosphoric acid (mL), ethanol (mL), isopropanol (mL) and urea (g) were mixed according to the ratio of 250:125:125:25:4; the conditions of electrochemical polishing were: the holding voltage was 5V, the current is 2A, and the polishing time is 3min.) Wash with deionized water to remove residual polishing liquid on the surface, and blow dry with nitrogen.

[0039] In the second step, the copper foil obtained in the first step is placed in a high-temperature tube furnace, and 200 sccm of argon gas and 100 sccm of hydrogen gas are introduced to start heating. The temperature of the tube furnace was raised to 1075°C, and the heating time was 45 minutes. Hold for 1h for annealing. After cooling down to room t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for preparing a large-area monocrystal Cu (111). The method comprises is characterized in that a polycrystalline copper foil is treated several times to obtain the monocrystal Cu (111); every treatment successively comprises polishing and annealing; and the treatment frequency is not less than 3, and specifically is 3 or 4. The crystal faces of the copper foil obtained by the method are all (111) faces, and the area of the monocrystal Cu (111) is limited only by the size of a preparation container, so the method realizes large-area preparation of the monocrystal Cu, and has great application values.

Description

technical field [0001] The invention belongs to the field of materials and relates to a method for preparing large-area single crystal Cu(111). Background technique [0002] Metal copper is widely used in various fields because of its excellent properties. Copper foil, as a kind of copper, is a layer of continuous metal foil with a thickness of microns obtained by depositing metal copper on the substrate of the circuit board. Copper foil has the characteristics of low surface oxygen, excellent tensile strength and ductility, excellent electrical conductivity and high catalytic performance. It is used in electromagnetic shielding and antistatic, copper clad laminates, printed circuit boards, lithium ion secondary There are a wide range of applications in the fields of batteries and metal catalysis. However, commercially available commercial copper foils are all polycrystalline copper foils, in which there are a large number of grain boundaries, which limit the application o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C30B1/02C30B29/02C30B33/02C30B33/00C22F1/08
CPCC22F1/08C30B1/02C30B29/02C30B33/00C30B33/02
Inventor 武斌张家宁杨贺刘云圻
Owner INST OF CHEM CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com