Quinone Polymer Gas Separation via Anion Adduct Formation
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Solution Overview
Problem
There is a need for improved materials and methods in electro-swing adsorption (ESA) for capturing target gases, particularly for applications like carbon dioxide capture, where existing technologies lack efficiency and effectiveness.
Innovation Solution
The development of quinone-containing polymers, specifically those with repeating units defined by Formulas (I) to (IV), which can be synthesized using olefin metathesis catalysts, are used in electrode assemblies and gas separation systems to effectively capture target gases through electrochemical processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing electro-swing adsorption materials are used, then gas capture can be performed, but the efficiency and effectiveness are insufficient
Solution Approach 1:
The patent modifies the chemical structure of electroactive materials by incorporating quinone-containing polymer repeating units with specific substituents (R1-R6) and ring structures (Formulas I-IV). These structural parameter changes enhance the material's ability to form anion adducts with target gases like CO2 and SO2, thereby improving both capture efficiency and effectiveness
Solution Approach 2:
The invention uses composite electrode structures combining conductive scaffolds (carbon paper, carbon cloth, metal foams) with quinone-containing polymer materials. This composite approach integrates the electrical conductivity of the scaffold with the gas-capture capability of the quinone polymer, achieving superior performance compared to either material alone
2Productivity
If new quinone-containing polymers are developed, then gas separation capability is enhanced, but manufacturing complexity increases
Solution Approach 1:
The patent divides the polymer structure into modular repeating units (Formulas I-IV) with defined substituents R1-R6 and core structures. This segmentation allows systematic variation of properties by changing individual substituent groups while maintaining the overall polymer architecture, facilitating controlled synthesis and manufacturing
Solution Approach 2:
The quinone-containing polymer repeating units are designed to serve multiple functions: providing electrochemical activity for swing adsorption, enabling anion adduct formation with target gases, and maintaining structural stability. This multi-functionality reduces the need for separate components, simplifying the overall system despite the advanced polymer chemistry involved
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
These quinone-containing polymers demonstrate enhanced capabilities for gas separation, particularly in capturing CO2 and SO2, by forming anion adducts with the polymer in its reduced state, improving the efficiency and effectiveness of gas capture processes.
Implementation Method 1
contacting the fluid mixture with a quinone-containing polymer comprising repeating units according to Formulas (I) to (IV) or a hydrogenated derivative thereof, wherein the quinone-containing polymer is in a reduced state, to form an anion adduct between the target gas and the quinone-containing polymer in the reduced state
Implementation Method 2
polymerizing a quinone-containing monomer of Formulas (IX) to (XII) in the presence of an olefin metathesis catalyst under conditions effective to provide a quinone-containing polymer comprising repeating units of Formulas (I) to (IV)
Implementation Method 3
Electro-swing adsorption (ESA) is an alternative method of capturing a target gas from a gaseous mixture. Typically, the electrode in an electro-swing adsorption cell includes an electrically conductive scaffold and an electroactive material
Data Source
AI summary
A quinone-containing polymer includes repeating units of at least one of Formulas (I) to (IV) or a hydrogenated derivative thereof, as defined herein. Methods of manufacturing the quinone-containing polymer are also disclosed. The quinone-containing polymer can be useful in composites, electrode assemblies, electrochemical cells, gas separation systems, energy storage devices, and electrochromic devices.