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

Combined type getter for improving hydrogen absorption performance

A combined, getter technology, used in lighting and heating equipment, applications, thermal insulation, etc., can solve the problems of high cost, low production efficiency, poor water resistance, etc., and achieve the effect of good water resistance and low cost

Active Publication Date: 2016-05-11
NANJING HUADONG ELECTRONICS VACUUM MATERIAL
View PDF8 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The present invention proposes a low-cost combined getter that improves hydrogen absorption performance, and its purpose is to overcome the inconvenient use, small absorption capacity, and the existing combination-type getter existing in the prior art. The cost of the getter is high, and precious metals such as palladium, platinum, gold, ruthenium, and rhodium need to be used, and the water resistance is poor. Defects such as falling

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Using the well-known co-precipitation method in the art, the mixed solution of soluble silver, copper and cobalt salts was precipitated with soluble carbonate, then washed, dried, and calcined at high temperature to obtain a copper-cobalt oxide oxidant containing 5% silver , the Co:Cu atomic ratio is 1:1; the crystalline CaO is crushed, ball milled and passed through a sieve smaller than 500 microns; 1g of the above-mentioned oxidant is mixed with 4g of the above-mentioned CaO to obtain a combined getter of the present invention. The above composition was sealed in a breathable polyethylene film for later use.

Embodiment 2

[0031] Example 2 This example is the sample preparation of the prior art disclosed technology for comparison. Adopt well-known co-precipitation method in the art, use soluble carbonate to precipitate the mixed solution of soluble silver and manganese salt, then wash, dry, high-temperature calcining, make the manganese oxide oxidizer containing silver 10%; Crystalline CaO Crushing, ball milling and passing through a sieve smaller than 500 microns; taking 1 g of the above-mentioned oxidant and mixing 4 g of the above-mentioned CaO to obtain a composition in the prior art. The above composition was sealed in a breathable polyethylene film for later use.

Embodiment 3

[0032] Example 3 This example is the sample preparation of the prior art disclosed technology for comparison. Adopt well-known co-precipitation method in the art, use soluble carbonate to precipitate the mixed solution of soluble palladium and cobalt salt, then wash, dry, high-temperature calcining, make the cobalt oxide oxidizer containing palladium 2%; Crystalline CaO Crushing, ball milling and passing through a sieve of less than 500 microns; taking 1g of the above-mentioned oxidant and putting it into a circular stainless steel container with a diameter of about 30mm and a height of about 5mm, then adding 4g of the above-mentioned CaO, and then pressing with a pressing pressure of 4 tons to obtain the existing Another sample of disclosed technology.

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
sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a combined type getter for improving hydrogen absorption performance. The combined type getter is prepared from a water absorbing material and an oxidizing agent. The weight ratio of the water absorbing material to the oxidizing agent ranges from 100:1 to 1:100. The oxidizing agent and the water absorbing material are used after being mixed uniformly. The oxidizing agent is a composition of one or two oxides selected from copper and cobalt. Silver accounting for 0.1%-10% of the total weight is added. The getter has the beneficial effects that expensive palladium, platinum, ruthenium, rhodium and gold is not used in the oxidizing agent, so that cost is low. Meanwhile, compared with the prior art, the getter has higher H2 and CO absorbing speed in vacuum, and the absorbing capacity is equal to that of the prior art. Water resistance of the oxidizing agent is good, when the oxidizing agent is exposed for 48 hours in an environment with the temperature being 25 DEG C and relative humidity being 70%, loss of the H2 and CO absorbing speed is smaller than 50%, and the absorbing capacity is basically unchanged. The oxidizing agent can be directly mixed with the water absorbing material for use, and does not need to be treated in a layering manner.

Description

technical field [0001] The present invention relates to a getter composition for improving and maintaining vacuum in devices that cannot be heated to a temperature higher than 200°C, in particular to vacuum heat insulation panels used in refrigerators, electric water heaters, cold storages and the like. Background technique [0002] Due to its good heat insulation effect, vacuum insulation panels have gradually been widely used in thermal insulation fields such as petroleum, chemical industry, construction, refrigerators, and heat preservation cookers. The thermal insulation performance of the vacuum insulation panel mainly depends on the internal vacuum degree and the thermal conductivity of the core material. With the development of technology, the selection and processing technology of the internal core material are becoming more and more perfect, and the thermal conductivity of the surface sealing material of the vacuum insulation panel is also affected. An important fac...

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 Applications(China)
IPC IPC(8): F16L59/065F25D23/00
CPCB01D2252/103B01D2253/108B01D2253/1124B01D2253/116F16L59/065F25D23/00
Inventor 郭卫斌薛函迎柴云川王浏杰
Owner NANJING HUADONG ELECTRONICS VACUUM MATERIAL