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

Electrochemical sensor of hydrogen in extreme environment

A hydrogen sensor and extreme environment technology, applied in the field of sensors, can solve the problem that it can only work under lower temperature and pressure, and achieve the effect of easy promotion, small size and low cost

Inactive Publication Date: 2002-10-30
ZHEJIANG UNIV
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the previous hydrogen detectors can only work at lower temperature and pressure. The present invention provides an electrochemical sensor capable of real-time detection and long-term monitoring of hydrogen concentration in aqueous solution from normal temperature and pressure to high temperature and high pressure.

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
  • Electrochemical sensor of hydrogen in extreme environment
  • Electrochemical sensor of hydrogen in extreme environment

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0009] The preparation method steps of said metal hydrogen electrode are as follows:

[0010] 1) Take a metal sheet with a thickness of 0.1-0.4 mm, cut it into strips with a length of 5-12 mm and a width of 3-8 mm, and bend it into a metal sheet with the long side as the perimeter. ring, on one side of which a metal wire is welded;

[0011] 2) Immerse the metal ring and the welding part in acetone or trichlorethylene and boil to remove organic impurities, then immerse in a hydrochloric acid solution with a concentration of 3-6M, ultrasonically clean for more than 1 minute, take it out, wash it with distilled water, and air dry;

[0012] 3) Dissolving the soluble polyimide in an organic solvent to form a solution with a concentration of 5-50%, coating the solution on the metal wire, and air-drying.

[0013] The material of the metal ring is one of platinum, palladium, ruthenium, iridium and gold; the material of the metal wire is one of platinum, gold, silver and copper;

[0...

example 1

[0034] Example 1: Making a hydrogen electrode with platinum

[0035]1) Take a platinum metal sheet with a thickness of 0.2 mm, cut it into strips with a length of 8.5 mm and a width of 4.5 mm, take the long side of the platinum sheet as the perimeter, bend it into a ring, and weld it on one side Put the gold wire; then boil it in acetone to remove organic impurities, then immerse it in a hydrochloric acid solution with a concentration of 6M, ultrasonically clean it for more than 1 minute, take it out, wash it with distilled water, and air dry;

[0036] 2) Immerse the platinum ring and the welding part in acetone and boil to remove organic impurities, then immerse in a hydrochloric acid solution with a concentration of 6M, ultrasonically clean for more than 1 minute, take it out, wash it with distilled water, and air dry;

[0037] 3) Dissolving the soluble polyimide in an organic solvent to prepare a solution with a concentration of 30%, coating the solution on the gold wire, a...

example 2

[0038] Example 2: Making a hydrogen electrode with palladium

[0039] 1) Take a palladium metal sheet with a thickness of 0.2 mm, cut it into a strip with a length of 8.5 mm and a width of 4.5 mm, take the long side of the palladium sheet as the perimeter, bend it into a ring, and weld it on one side Platinum wire;

[0040] 2) Immerse the palladium ring and the welding part in trichlorethylene and boil to remove organic impurities, then immerse in a 3M hydrochloric acid solution, ultrasonically clean for more than 1 minute, take it out, wash it with distilled water, and air dry;

[0041] 3) Dissolving the soluble polyimide in an organic solvent to prepare a solution with a concentration of 30%, coating the solution on a platinum wire, and air-drying. It can be repeated several times until an insulating protective layer of sufficient thickness is formed, and the electrode is thus completed.

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
lengthaaaaaaaaaa
widthaaaaaaaaaa
Login to View More

Abstract

An electrochemical hydrogen sensor used in extreme environmental has a metal electrode and a reference metal / metal oxide electrode. Said metal electrode is a metal ring made of Pt, Pd, Ru, Ir, or Au.Said reference electrode has a metal wire with active oxide film on its surface. Its advantages are small size, high mechanical strength, wide application range and low cost.

Description

technical field [0001] The invention relates to sensors, in particular to an electrochemical hydrogen sensor suitable for extreme environments. Background technique [0002] The concentration of dissolved hydrogen in an aqueous medium is one of the most important chemical properties of an aqueous solution. In the chemical, chemical, pharmaceutical, material, electric power and other industries, the hydrogen concentration in the water medium is a sign of the progress of many synthetic reactions on the one hand, and on the other hand it can reflect the state of the equipment, especially whether the reaction vessel and pipeline are corroded. . In addition, the hydrogen concentration in the solution is an important parameter for understanding the natural environment and geological processes. Most of the previous hydrogen detectors can only work at relatively low temperature and pressure. The present invention provides an electrochemical sensor capable...

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): G01N27/26G01N27/30G01N27/407
Inventor 叶瑛陈鹰周怀阳周玉航彭懋顾临怡
Owner ZHEJIANG UNIV
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