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

Method for synthesizing nano-size lanthanide metal hydride from lanthanide metal under nalohydrocarbon action

A lanthanide metal, nano-scale technology, applied in the direction of metal hydrides, chemical instruments and methods, non-metallic elements, etc.

Inactive Publication Date: 2004-06-30
LIAONING NORMAL UNIVERSITY
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of the present invention is the method of synthesizing nanometer-sized lanthanide metal hydrides from lanthanide metals under the action of halogenated hydrocarbons.

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 synthesizing nano-size lanthanide metal hydride from lanthanide metal under nalohydrocarbon action

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0009] Example 1 Synthesis of nano-sized lanthanum hydride

[0010] Add 3.47g (25mmol) metal lanthanum chips (produced by Beijing General Research Institute for Nonferrous Metals, purity > 99.5%), 15.0mL toluene and 0.015mL bromoethane into the reaction flask connected to the constant pressure hydrogen gas volume tube, oil bath control temperature (45° C.), turn on the magnetic stirrer, and inject hydrogen. After 58 hours, the metal lanthanum hydrogenation reaction stopped, and the hydrogen absorption amount of the reaction was directly read from the constant pressure measuring tube. The organic phase in the reaction flask was separated, the solid phase was washed twice with toluene, and dried in a vacuum oil bath (80° C.) for 1 hour to obtain a black solid powder of lanthanum hydride.

[0011] The role of the halogenated hydrocarbon is that it can quantitatively convert lanthanum into nano-sized lanthanum hydride. The composition of nanoscale rare earth metal hydrides is no...

example 2

[0012] Synthesis of nanometer-sized neodymium hydride under the action of example 2 halogenated hydrocarbons

[0013] Synthesize nanometer-sized neodymium hydride according to the method of example 1. Hydrogenation of neodymium metal ceased after 68 hours. TEM results show that the basic particle size is less than 40nm.

example 3

[0014] Example 3 Synthesis of nanometer-sized samarium hydride under the action of halogenated hydrocarbons

[0015] Synthesize nanometer-sized samarium hydride according to the method of example 1. Hydrogenation of samarium metal ceased after 120 hours. TEM results show that the basic particle size is less than 40nm.

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
Sizeaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a new process for synthesizing various nano-size lanthanide series metal hydride by utilizing lanthanide series metal in organic solvent under the condition of normal temp. and normal pressure and under the action of halohydrocarbon. The transmission electron microscope (TEM) determination result shows that basic granule diameter range of said lanthanide series metal hydride is less than 40 nm. Said invention is characterized by that in the course of synthesizing nano-size lanthanide series metal hydride it has no need of adding metal organic activating agent.

Description

technical field [0001] The new method of the present invention refers to synthesizing nano-sized lanthanide metal hydrides from lanthanide metals under the action of halogenated hydrocarbons in an organic solvent under normal temperature and pressure conditions. Background technique [0002] Nanomaterials science is a new subject that is developing rapidly. The size effect and surface characteristics of nanomaterials not only show extremely high reactivity, but also show coalescence instability. Therefore, nano-metal hydride materials with small grain size, large specific surface area and high reactivity are synthesized. A difficult and challenging job. Nanoscale lanthanide metal hydrides have a wide range of applications in the fields of catalytic chemistry, synthetic chemistry, material science, energy and environmental protection, and can produce direct economic benefits. [0003] The preparation methods of nanomaterials are usually divided into physical methods and che...

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): C01B6/00
Inventor 范荫恒李英俊廖世健徐杰
Owner LIAONING NORMAL UNIVERSITY
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