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

A kind of methane gas sensor and preparation method of tin mud loaded palladium in tin plating process

A methane gas and sensor technology, applied in the direction of material electrochemical variables, etc., can solve the problems of tin sludge waste, achieve good response-recovery characteristics, improve gas sensing performance, and enhance stability

Active Publication Date: 2019-12-03
NORTHEASTERN UNIV LIAONING +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For existing nano SnO 2 Problems existing in the preparation process, and the waste of tin mud in the tin plating process, etc., the present invention proposes a technology for comprehensive utilization of tin mud

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 kind of methane gas sensor and preparation method of tin mud loaded palladium in tin plating process
  • A kind of methane gas sensor and preparation method of tin mud loaded palladium in tin plating process
  • A kind of methane gas sensor and preparation method of tin mud loaded palladium in tin plating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 Preparation of methane gas sensor with palladium supported on tin mud

[0032] Take 5g of washed and dried tin sludge in a ball mill jar, add 8g of polyethylene glycol 400 and 2g of polyvinyl alcohol for mechanical ball milling, and keep the mixture obtained from ball milling in an autoclave at 160°C for 4 hours, then cool it out And sintering in the air at 500° C. for 3 hours to obtain a porous nano-solid modified by tin mud. 0.1g of PdCl 2 Dissolve in a mixed solution of 10ml deionized water and absolute ethanol, add 1g of porous nano-solid, and 10mg of antimony trioxide, stir evenly for 3h, then heat-treat in air at 450°C for 2h to obtain PdCl 2 Loaded porous nano-solid gas-sensing material. PdCl 2 The loaded porous nano-solid material is mixed with deionized water at a mass ratio of 2:1, ground to form a slurry and uniformly coated on a ceramic substrate, and then dried naturally for electrode welding to obtain a methane gas sensor.

Embodiment 2

[0033] Example 2 Preparation of methane gas sensor with palladium supported on tin mud

[0034] Take 5g of washed and dried tin sludge in a ball mill jar, add 8g of polyethylene glycol 400 and 2g of polyvinyl alcohol for mechanical ball milling, keep the mixture obtained by ball milling in an autoclave at a constant temperature of 180°C for 4 hours, then cool it out And sintering in the air at 500° C. for 3 hours to obtain a porous nano-solid modified by tin mud. 0.1g of PdCl 2 Dissolve in a mixed solution of 10ml deionized water and absolute ethanol, add 1g of porous nano-solid, and 10mg of antimony trioxide, stir evenly for 3h, then heat-treat in air at 450°C for 2h to obtain PdCl 2 Loaded porous nano-solid gas-sensing material. PdCl 2 The loaded porous nano-solid material is mixed with deionized water at a mass ratio of 2:1, ground to form a slurry and uniformly coated on a ceramic substrate, and then dried naturally for electrode welding to obtain a methane gas sensor. ...

Embodiment 3

[0035] Example 3 Preparation of methane gas sensor with palladium supported on tin mud

[0036]Take 5g of washed and dried tin sludge in a ball mill jar, add 8g of polyethylene glycol 400 and 2g of polyvinyl alcohol for mechanical ball milling, keep the mixture obtained by ball milling in an autoclave at 200°C for 4 hours, then cool it out And sintering in the air at 500° C. for 3 hours to obtain a porous nano-solid modified by tin mud. 0.1g of PdCl 2 Dissolve in a mixed solution of 10ml deionized water and absolute ethanol, add 1g of porous nano-solid, and 10mg of antimony trioxide, stir evenly for 3h, then heat-treat in air at 450°C for 2h to obtain PdCl 2 Loaded porous nano-solid gas-sensing material. PdCl 2 The loaded porous nano-solid material is mixed with deionized water at a mass ratio of 2:1, ground to form a slurry and uniformly coated on a ceramic substrate, and then dried naturally for electrode welding to obtain a methane gas sensor.

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 diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A methane gas sensor and a preparation method using tin mud loaded with palladium in the tin plating process belong to the technical field of semiconductor gas sensors and environmental monitoring. In order to solve the problem of waste of tin mud produced in the tin plating process, the present invention performs modification processes such as washing, pore making, and sintering on the tin mud, and on this basis, metal palladium is loaded to prepare methane-sensitive materials. The prepared gas sensor is suitable for CH 4 It shows higher sensitivity and better response-recovery characteristics when detecting gas. The material preparation and gas sensor preparation process used in the present invention have the advantages of simple process, low raw material cost, short preparation cycle, etc., and can be used for industrialization and mass production. At the same time, comprehensive utilization of resources has been achieved in terms of raw material sources. Therefore, the sensor has broad application prospects in methane gas detection.

Description

technical field [0001] The invention belongs to the technical field of semiconductor oxide gas sensors and environmental monitoring, and in particular relates to a methane gas sensor based on tin mud modification in a tin plating process and loaded with palladium and a preparation method thereof. Background technique [0002] Methane is a colorless, odorless, flammable and explosive gas, and its explosion limit in air is 5% to 15% (volume fraction). Methane is the main component of biogas, natural gas and combustible ice, and is widely used for energy supply in life and industry. But methane is also one of the main gases that cause the greenhouse effect, and with the popularity of methane in people's lives, there are more and more safety accidents caused by its leakage. Therefore, accurate and rapid real-time monitoring and early warning of methane are very important to reduce the safety accidents caused by it. The types of sensors currently used for methane gas detection ...

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): G01N27/30
CPCG01N27/30
Inventor 李建中徐浩元付玉尹远洪
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