Water-soluble electrolyte system and application of water-soluble electrolyte system in electrochemical oxygen sensor

An oxygen sensor and electrolyte technology, applied in the field of electrolyte, can solve problems such as sensor failure and moisture volatilization, and achieve the effect of avoiding poor sensor performance

Inactive Publication Date: 2014-10-29
NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing electrolyte system is prone to moisture volatilization and cause sensor failure, and to provide a water-soluble electrolyte system and its application in electrochemical oxygen sensors

Method used

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  • Water-soluble electrolyte system and application of water-soluble electrolyte system in electrochemical oxygen sensor
  • Water-soluble electrolyte system and application of water-soluble electrolyte system in electrochemical oxygen sensor
  • Water-soluble electrolyte system and application of water-soluble electrolyte system in electrochemical oxygen sensor

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specific Embodiment approach 1

[0010] Specific embodiment one: this embodiment is that a kind of water-soluble electrolyte system is made up of electrolyte material and support material; Described electrolyte material is water; Described support material is hydrophilic ionic liquid; Put hydrophilic ionic liquid Naturally absorb water until constant weight in an environment with a humidity of 5% to 100%, to obtain a water-soluble electrolyte system.

[0011] The strong water absorption characteristics of hydrophilic ionic liquids are used to realize the absorption and retention of water electrolyte materials, thereby avoiding poor sensor performance and short life due to water electrolyte volatilization.

specific Embodiment approach 2

[0012] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the hydrophilic ionic liquid is composed of hydrophilic cations and hydrophilic anions. Others are the same as the first embodiment.

[0013] The hydrophilic ionic liquid described in this embodiment is composed of hydrophilic cations and hydrophilic anions, and the hydrophilic ionic liquid is electrically neutral, that is, the positive charge of the hydrophilic cation in the hydrophilic ionic liquid is The negative charges of water-based anions are equal, and hydrophilic ionic liquids can naturally absorb moisture in the environment under certain environmental conditions, and can maintain moisture, even under certain vacuum and high temperature conditions. Moisture retention without adding water to it.

specific Embodiment approach 3

[0014] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the hydrophilic cation is selected from imidazolium cations, pyridinium cations, thiazole cations, pyrrole cations and thiazoline cations. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a water-soluble electrolyte system and application of a water-soluble electrolyte system in an electrochemical oxygen sensor, relates to electrolyte and application thereof and aims to solve the problem of sensor failure caused by easy water volatilization in the existing electrolyte system. The water-soluble electrolyte system consists of an electrolyte material and a support material, wherein the electrolyte material is water; the support material is hydrophilic ionic liquid; the hydrophilic ionic liquid is placed in the environment with a certain humidity and the water is naturally absorbed until the hydrophilic ionic liquid is constant in weight so as to obtain the water-soluble electrolyte system. The invention also discloses application of the water-soluble electrolyte system which is used as electrolyte in the electrochemical oxygen sensor. The water-soluble electrolyte system has the advantages that the water electrolyte material is absorbed and maintained by using the relatively strong water absorption property of the hydrophilic ionic liquid, so that the problems of poor performance and short service life of the sensor caused by volatilization of the water electrolyte can be avoided.

Description

technical field [0001] The invention relates to an electrolyte and its application. Background technique [0002] Electrochemical oxygen sensors and water-oxygen electrochemical reactions are well known in the art. Oxygen and water undergo electrochemical reactions under the catalytic action of catalytic electrodes, and the electrochemical current generated has a certain functional relationship with oxygen concentration / partial pressure. This functional relationship realizes the detection of oxygen concentration / partial pressure. The traditional inorganic salt solution such as potassium chloride has been described as an electrolyte for electrochemical oxygen sensors. The above electrolyte system is prone to moisture volatilization under harsh environmental conditions such as high temperature or low pressure, causing sensor failure and is irreversible. . Contents of the invention [0003] The purpose of the present invention is to solve the problem that the existing elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26
Inventor 尤佳秦浩祁欣徐振忠迟超张巍周明军
Owner NO 49 INST CHINESE ELECTRONICS SCI & TECH GRP
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