Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for preparing moisture gel of transition metal oxide and hydroxide

A transition metal and hydroxide technology, applied in the field of chemical engineering and new materials, can solve the problem of no patent report for transition metal oxides

Inactive Publication Date: 2010-04-28
NO 63971 TROOPS PLA
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other existing inventions related to gels are mostly in petroleum exploration, medical treatment, etc. There are no relevant patent reports on transition metal oxides, hydroxide gels and their preparation methods

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
  • Process for preparing moisture gel of transition metal oxide and hydroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Use nickel sulfate, sodium acetate, sodium pyrophosphate, ammonia water as a solvent to prepare a solution and adjust the pH to 8 as solution A. Prepare 5 moles per liter of KOH with water as a solvent, as solution B. Under constant stirring and a constant temperature of 60°C, slowly add solution B to solution A, control the pH to 14 as the reaction end point, stop adding solution B, and keep the constant temperature for 2 hours. The product and the mother liquor are separated by centrifugation, the mother liquor is discarded, and the product is washed to neutrality to obtain a nickel hydroxide wet gel material. The XRD pattern of the product is shown in the accompanying drawing of the specification, and the calculation shows that the grain size is 6-7nm.

Embodiment 2

[0022] Prepare a solution with lead nitrate, sodium acetate, sodium pyrophosphate, nitric acid and water as a solvent to adjust the pH to 4 as solution A. A mixed solution of 5 moles per liter of KOH and 0.2 moles per liter of hydrogen peroxide was prepared as solution B using water as a solvent. Under constant stirring and a constant temperature of 40°C, slowly add solution B to solution A, control the pH to 14 as the reaction end point, stop adding solution B, and keep the constant temperature for 5 hours. The product and the mother liquor are separated by centrifugation, the mother liquor is discarded, and the product is washed to neutrality to obtain the lead dioxide gel material.

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
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a wet gel of transitional metallic oxides and hydroxides and method for preparation, which comprises charging solution B into a buffering solution A containing one or more transitional metal ions, making the miscible liquid have a predetermined pH range. The prepared wet gel has rather high electrochemical capacity, and can be widely applied to the fields of battery, supercapacitor and catalyzed industry.

Description

technical field [0001] The invention relates to a preparation method of a transition metal oxide or hydroxide wet gel, belonging to the fields of chemical engineering and new materials. It can be widely used in fields such as batteries, supercapacitors, fuel cells and catalytic industries. Background technique [0002] Transition metal oxides and hydroxides have a wide range of applications. Most of the catalysts used in chemical industry are transition metal oxides, such as molybdenum oxide and vanadium oxide; paints and pigments use iron oxide, chromium oxide, etc.; many electrode materials in the battery industry are transition metal oxides and hydroxides, such as lithium Lithium cobalt oxide, lithium manganate, etc., are the cathode materials for ion batteries, nickel hydroxide is the cathode material for nickel-hydrogen batteries, lead oxide is the cathode material for lead-acid batteries, and manganese dioxide is the cathode material for dry batteries. [0003] Conve...

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): C01B13/14
Inventor 程杰曹高萍杨裕生
Owner NO 63971 TROOPS PLA