Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A low-cost electrochemical deposition method for preparing rare earth metal terbium thin films

A rare earth metal and electrochemical technology, applied in optics, improvement of process efficiency, instruments, etc., can solve the possibility of increasing the production cost of ionic liquids, environmental pollution, no large-scale practical application background, and reduce the green characteristics of ionic liquids, etc. , achieve good chemical and thermal stability, excellent solubility, and improve the working environment

Active Publication Date: 2020-04-28
NORTHEASTERN UNIV LIAONING
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis process of ionic liquids is complicated, the exchange reaction is not complete, there are competing reactions and by-products, and the obtained products need to be purified and separated in multiple steps, which significantly increases the production cost of ionic liquids and the possibility of environmental pollution, and reduces the ionic liquid. green character of the liquid
However, the water content in the final ionic liquid product cannot be guaranteed, which seriously affects the process of preparing active metal terbium films by electrodeposition of ionic liquids.
On the other hand, conventional ionic liquids have a narrow electrochemical window and limited solubility for general chlorides (such as magnesium chloride, calcium chloride, rare earth chloride, etc.), and some common ionic liquids have high viscosity and are easy to absorb water in the air, so they are very large The practical application of ionic liquids is limited to a certain extent
Therefore, at present, the development of ionic liquids has a history of one hundred years, but it is limited to scientific research in the field of metal electrodeposition, and there is no large-scale practical application background

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
  • A low-cost electrochemical deposition method for preparing rare earth metal terbium thin films
  • A low-cost electrochemical deposition method for preparing rare earth metal terbium thin films
  • A low-cost electrochemical deposition method for preparing rare earth metal terbium thin films

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The raw materials for preparing the electrolyte are terbium chloride and lithium nitrate, and solvent DMI, which are stirred and mixed in the electrolytic cell to form an electrolyte system, wherein the molar concentrations of terbium chloride and lithium nitrate are 0.01mol / L and 0.01mol / L, respectively. Control the constant temperature of the electrolyte system at 25°C, the electrolysis voltage is -2.0V (vs Ag), and the cathode material is high-purity aluminum sheet; after 30 minutes of electrolysis, add terbium chloride once to make the concentration of terbium chloride in the system 0.01mol / L; electrolysis for 60 minutes Afterwards, the substrate is collected and preserved together with the sediment. After characterization and testing, the results show that metal terbium can be effectively deposited. The total content of terbium elements detected by ICP is 76.62%. The deposited film obtained by SEM observation is a uniform and dense deposited film, and the thickness ...

Embodiment 2

[0036]The raw materials for preparing the electrolyte are terbium chloride and lithium nitrate, and solvent DMI, which are stirred and mixed in the electrolytic cell to form an electrolyte system, wherein the molar concentrations of terbium chloride and lithium nitrate are 0.02mol / L and 0.02mol / L, respectively. Control the constant temperature of the electrolyte system at 35°C, the electrolysis voltage is -2.1V (vs Ag), and the cathode material is high-purity copper sheet; after 30 minutes of electrolysis, add terbium chloride once to make the concentration of terbium chloride in the system 0.02mol / L; electrolysis for 60 minutes Afterwards, the substrate is collected and preserved together with the sediment. After characterization and testing, the results show that metal terbium can be effectively deposited. The total content of terbium elements detected by ICP is 97.47%. The deposited film obtained by SEM observation is a uniform and dense deposited film, and the thickness of ...

Embodiment 3

[0038] The raw materials for preparing the electrolyte are terbium chloride and lithium nitrate, and solvent DMI, which are stirred and mixed in the electrolytic cell to form an electrolyte system, wherein the molar concentrations of terbium chloride and lithium nitrate are 0.03mol / L and 0.03mol / L, respectively. Control the constant temperature of the electrolyte system at 45°C, the electrolysis voltage is -2.2V (vs Ag), and the cathode material is high-purity aluminum sheet; after 30 minutes of electrolysis, add terbium chloride once to make the concentration of terbium chloride in the system 0.03mol / L; electrolysis for 60 minutes Afterwards, the substrate is collected and preserved together with the sediment. After characterization and testing, the results show that metal terbium can be effectively deposited. The total content of terbium elements detected by ICP is 97.74%. The deposited film obtained by SEM observation is a uniform and dense deposited film, and the thickness ...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing rare earth metal terbium thin films by electrochemical deposition at low cost, and belongs to the field of low-temperature electrodeposition of rare earth metals. A method for preparing rare earth metal terbium thin films by electrochemical deposition at low cost, which is characterized by including the following process steps: dissolving lithium nitrate in DMI to obtain a DMI electrolyte of lithium nitrate, placing the DMI electrolyte of lithium nitrate in an electrolytic tank, then add anhydrous terbium chloride to it, stir and mix in the electrolytic tank to form a uniform system, control the temperature of the entire system at 25~80℃, and the electrolysis voltage range -2.0~-2.4V vs Ag; electrodeposition During the process, anhydrous terbium chloride is added to the electrolytic cell at regular intervals to control the molar concentration of terbium chloride to the initial concentration ±2%. The method of the invention can efficiently prepare a rare earth metal terbium film while significantly reducing energy consumption and production costs.

Description

technical field [0001] The invention relates to a method for preparing rare earth metal terbium thin films by electrochemical deposition at low cost, and belongs to the field of low-temperature electrodeposition of rare earth metals. Background technique [0002] Rare earth elements are known as "industrial vitamins", "industrial monosodium glutamate", and "mother of new materials". effect. Due to their great effect and low dosage, rare earths have become an important element to improve product structure, increase technological content, and promote technological progress in the industry. They are widely used in metallurgy, military, petrochemical, glass ceramics, agriculture, and new materials. In particular, terbium is mainly used as an activator for green powder in tricolor phosphors, such as terbium-activated phosphate matrix, terbium-activated silicate matrix, and terbium-activated cerium-magnesium-aluminate matrix. Glows green. In addition, in terms of magneto-optica...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/54C25C1/22
CPCC25C1/22C25D3/54Y02P10/20
Inventor 石忠宁张保国姚宇胡宪伟高炳亮王兆文
Owner NORTHEASTERN UNIV LIAONING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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