Fibrous flexible solid silver/silver chloride reference electrode as well as preparation method and application thereof

A silver chloride electrode and reference electrode technology, applied in the field of flexible sensors, can solve problems such as inability to meet good contact, and achieve the effects of easy mass production, high stability, and prevention of falling off

Inactive Publication Date: 2021-09-24
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it cannot meet the requirements of weaving into clothing to achieve good contact with body fluids, and then meet the requirements of non-invasive detection

Method used

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  • Fibrous flexible solid silver/silver chloride reference electrode as well as preparation method and application thereof
  • Fibrous flexible solid silver/silver chloride reference electrode as well as preparation method and application thereof
  • Fibrous flexible solid silver/silver chloride reference electrode as well as preparation method and application thereof

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Experimental program
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Embodiment 1

[0034] Such as figure 1 Shown, the fabrication method of fibrous silver / silver chloride reference electrode is as follows:

[0035] Step 1: The single filament diameter is about 10 μm, and the whole bundle of commercial carbon fibers with a diameter of about 400 μm is used as the substrate, ultrasonically cleaned three times with ethanol and deionized water respectively, dried at room temperature, and about 1.5 cm of clean carbon filaments are taken for use;

[0036] Step 2: Dissolve 300mg of silver acetate, 100mg of potassium hydroxide, 500mg of ammonium acetate, and 1200mg of salicylic acid dihydrate in 10mL of deionized water, and stir for 10 minutes. After it is completely dissolved, adjust its pH to 9-10 with ammonia water. Between, prepare the electroplating solution;

[0037] Step 3, use the clean carbon wire as the working electrode, so that a length of 1 cm is immersed in the electroplating solution, and the silver wire is used as the counter electrode and reference ...

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Abstract

The invention discloses a fibrous flexible solid silver/silver chloride reference electrode as well as a preparation method and application thereof, and relates to the field of flexible sensors. The reference electrode comprises a flexible fibrous conductive substrate, a silver/silver chloride layer arranged on the flexible fibrous conductive substrate, a solid electrolyte layer coated on the surface of the silver/silver chloride layer, and a cation exchange membrane layer arranged on the surface of the solid electrolyte layer. The reference electrode disclosed by the invention is easy to prepare and low in cost, has the flexibility of fibers and strong bending capacity while maintaining high stability, and can be easily woven into a fabric to form a sensing system with a fibrous biological electrode.

Description

technical field [0001] The invention relates to the field of flexible sensors, in particular to a fibrous flexible fibrous solid-state silver / silver chloride reference electrode and a preparation method and application thereof. Background technique [0002] The demand for real-time and convenient physical condition monitoring is increasing in national health and medical treatment. Among them, the use of electrochemical methods to detect electrolytes and metabolites in various body fluids (such as blood, sweat, saliva, urine, tears, etc.) is due to its cost. Low and high precision have attracted widespread attention. Correspondingly, as an important part of electrochemical detection, a reference electrode that can provide a stable potential in solution must also be flexible, portable, easy to prepare, and easy to integrate. In addition, weaving sensors into clothing can achieve good contact with body fluids, thereby meeting the requirements of non-invasive detection. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30
CPCG01N27/301
Inventor 刘瑞丽沈超超奚馨吴东清唐伟郭小军苏跃增
Owner SHANGHAI JIAO TONG UNIV
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