Charge-Trap Electrode Structure for High-Field Electrostatic Catalysis
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Solution Overview
Problem
Existing electrodes for electrostatic catalysis do not effectively utilize embedded charges to generate high electric fields that can modify potential energy barriers in chemical reactions, limiting their catalytic efficiency.
Innovation Solution
The electrodes incorporate a substrate with alternating insulating layers of different band gaps and a conductive layer, such as monoatomic graphene, to create electronic charge traps that generate a high electric field penetrating into the electrolytic medium, reducing the potential energy barrier of chemical reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional electrodes are used for electrostatic catalysis, then the supply voltage can be maintained at standard levels, but the catalytic efficiency and reaction rate are limited due to insufficient electric field strength
Solution Approach 1:
The patent changes the physical and chemical parameters of the electrode by incorporating insulating layers with specific band gap energies and embedded charge traps. These parameter changes enable the electrode to generate internally enhanced electric fields that increase reaction rates without requiring proportionally higher supply voltages, thus resolving the contradiction between productivity and energy use
Solution Approach 2:
The patent employs composite electrode structures combining conductive materials with insulating layers of different band gaps (e.g., silicon dioxide, silicon nitride, titanium dioxide). This composite structure creates embedded charge traps that generate localized high electric fields, improving catalytic efficiency without linearly increasing the overall energy input required
2Productivity
If the supply voltage is increased to enhance catalytic efficiency, then the reaction rate improves, but the energy consumption and operational cost increase
Solution Approach 1:
The electrode structure performs self-service by generating its own enhanced electric fields through embedded charge traps in the insulating layers. The band gap differences between layers automatically create potential wells that trap charges and generate localized high electric fields, providing self-enhanced catalysis without requiring additional external energy input, thus improving efficiency while minimizing energy loss
3Productivity
If simple insulating layers are used in the electrode, then the device complexity is low, but the electric field generation capability and catalytic performance are insufficient
Solution Approach 1:
The patent segments the insulating layer into multiple sub-layers with different band gap energies (e.g., first insulating layer with 9 eV band gap, second insulating layer with 5 eV band gap). This segmentation creates distinct charge trap zones at each interface, enabling enhanced electric field generation while maintaining a relatively simple overall electrode structure that can be manufactured using standard techniques
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 electrodes enhance the reaction rate by generating a strong electric field that lowers the energy barrier, mimicking the catalytic effect without increasing supply voltage, thereby improving the efficiency of electrochemical processes.
Implementation Method 1
a first electronic charge trap is defined at the interface of the first insulating layer and the second insulating layer
Implementation Method 2
the first conductive layer comprises monoatomic graphene or molybdenum disulfide. The first conductive layer contains a conductive material configured to permit an external electric field to penetrate the electrode from the first electronic charge trap
Implementation Method 3
The electrodes enhance the reaction rate by generating a strong electric field that lowers the energy barrier, mimicking the catalytic effect without increasing supply voltage
Data Source
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AI summary
An electrode having an embedded charge contains a substrate, a first electronic charge trap defined at the interface of a first insulating layer and a second insulating layer; and a first conductive layer disposed on the first electronic charge trap; wherein the first conductive layer contains a conductive material configured to permit an external electric field to penetrate the electrode from the first electronic charge trap; and wherein the first insulating layer is not the same as the second insulating layer.