Electrolysis Electrode with Transition Layer to Prevent Cracking
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Solution Overview
Problem
Iridium-based oxide electrodes in electrochemical sterilization face issues such as cracking due to thermal expansion coefficient differences, leading to reduced service life and effectiveness in sterilization and decolorization processes.
Innovation Solution
The development of an electrolysis electrode with a thin aluminum oxide transition layer, allowing electron penetration and acting as a crack prevention layer, combined with a nano hybrid coating of stable and active oxide materials, enhances electrocatalytic performance and service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an iridium-based oxide coating is applied to the base body, then electrocatalytic activity and corrosion resistance are improved, but cracking occurs due to thermal expansion coefficient difference, reducing service life
Solution Approach 1:
A transition layer is introduced as an intermediary between the base body and the iridium-based oxide coating. This transition layer has a thermal expansion coefficient that gradually transitions from the base body to the coating material, reducing the thermal stress and preventing cracking while maintaining the electrocatalytic activity and corrosion resistance of the coating.
Solution Approach 2:
The electrode structure is designed as a composite material system consisting of the base body, transition layer, and iridium-based oxide coating. This composite structure combines the advantages of each layer: the base body provides mechanical strength, the transition layer provides thermal expansion compatibility, and the coating provides electrocatalytic activity and corrosion resistance, thereby extending service life.
2Stability of the object's composition
If the transition layer thickness is increased to prevent cracking, then structural stability is improved, but electron penetration is hindered, reducing electrocatalytic performance
Solution Approach 1:
The thickness of the transition layer is precisely controlled within a specific range (1-10 nm) to achieve the optimal balance between structural stability and electron penetration. This parameter optimization ensures that the transition layer is thick enough to provide thermal expansion compatibility and prevent cracking, while remaining thin enough to allow electron tunneling and maintain electrocatalytic performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The electrolysis electrode achieves prolonged service life and improved sterilization and decolorization efficiency by preventing cracking and maintaining electrocatalytic performance, while effectively degrading and decolorizing organic pollutants and dyes.
Implementation Method 1
the transition layer has a thickness allowing electrons to penetrate through the transition layer
Implementation Method 2
electrochemical oxidation of the surface of the base body is also easily accelerated
Implementation Method 3
electrolysis electrode, preparation method therefor, electrolysis apparatus, and clothing treatment device
Data Source
AI summary
An electrolysis electrode and a preparation method therefor, an electrolysis apparatus, and a clothing treatment device. The electrolysis electrode includes a substrate, a transition layer, and an electrode catalytic material layer, and the transition layer is attached to the surface of the substrate, the electrode catalytic material layer is attached to the surface of the transition layer, and the thickness of the transition layer satisfies that: electrons can pass through the transition layer. The transition layer of the electrolysis electrode is relatively thin, so that electrons can pass through the transition layer due to a quantum tunneling effect, and thus the electrocatalytic performance of the electrolysis electrode is basically not affected. Furthermore, the transition layer plays the role of transition connection, and can greatly improve the phenomenon of cracks in the electrode catalytic material layer.