Nanocarbon Separation via Feedback-Controlled Electrophoresis
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Solution Overview
Problem
Existing nanocarbon separation methods face challenges in achieving stable quality fractionation of nanocarbons with different properties, as the separation state can vary significantly with conditions, making it difficult to consistently separate metallic and semiconducting nanocarbons effectively.
Innovation Solution
A nanocarbon separation device and method that includes a separation tank with upper and lower electrodes, an evaluation system to assess physical or chemical states, and a fractionation mechanism to separate metallic and semiconducting nanocarbons based on direct current voltage application, allowing for stable quality fractionation by moving nanocarbons towards specific electrodes and evaluating their state for precise recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrophoresis separation is performed using conventional methods, then nanocarbons can be separated into different groups, but the separation state varies depending on various conditions making it difficult to achieve stable quality fractionation
Solution Approach 1:
The patent introduces evaluation means that continuously monitor the separation state of nanocarbons during electrophoresis. Based on the evaluation results, the system automatically adjusts operation conditions (such as voltage, flow rate, or separation time) to maintain optimal separation quality. This closed-loop feedback control ensures stable fractionation results even when external conditions vary.
Solution Approach 2:
The patent employs dynamic adjustment of electrophoresis parameters (voltage, current, separation time) and flow rate parameters based on real-time evaluation of the separation state. By changing these parameters adaptively rather than using fixed conditions, the system maintains high separation quality across different operating scenarios.
2Productivity
If multiple nanocarbon types are separated simultaneously, then comprehensive fractionation is achieved, but the complexity of the separation system increases
Solution Approach 1:
The patent divides the separation process into multiple stages or zones within the electrophoresis tank, with each zone optimized for separating specific nanocarbon types based on their properties. The evaluation means also divide the monitoring into multiple parameters, allowing complex separations to be managed through modular, staged processing rather than a single complex operation.
Solution Approach 2:
The patent designs the electrophoresis tank and evaluation system to handle multiple nanocarbon types simultaneously using a unified platform. The same basic apparatus can separate different nanocarbon materials (such as carbon nanotubes, graphene, fullerenes) by adjusting parameters, rather than requiring separate dedicated systems for each material type.
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
Enables the stable and efficient fractionation of nanocarbons with different properties, ensuring high purity and consistency in separating metallic and semiconducting nanocarbons, even under varying conditions.
Implementation Method 1
separating the nanocarbon micelle groups into two or more nanocarbon micelle groups by applying a voltage in a serial direction to the introduced, arranged, and laminated dispersion liquids and holding solution
Implementation Method 2
evaluating a physical state or a chemical state of the dispersion liquid
Data Source
AI summary
A nanocarbon separation device includes a separation tank that is configured to accommodate a dispersion liquid including nanocarbons, a first electrode that is provided at an upper part in the separation tank, a second electrode that is provided at a lower part in the separation tank, an evaluation unit that is configured to evaluate a physical state or a chemical state of the dispersion liquid, and a fractionation unit that is configured to fractionate the dispersion liquid based on the physical state or the chemical state.