Metal Catecholate Frameworks for Tunable Gas Separation
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Solution Overview
Problem
Current technologies for gas separation and storage lack efficient, reversible, and tunable solutions for carbon dioxide removal and energy storage in supercapacitors due to limitations in porosity and functionalization of carbon frameworks.
Innovation Solution
Development of metal catecholate frameworks comprising homogenous or heterogeneous metals linked by catechol-based moieties, which provide high thermal and chemical stability, permanent porosity, and tunable properties for gas separation and energy storage applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If carbon frameworks are used for gas separation and storage, then porosity and functionalization are provided, but efficiency, reversibility, and tunability are insufficient
Solution Approach 1:
The patent applies parameter changes by systematically varying metal ion types (Fe3+, Co2+, Ni2+, Cu2+, Zn2+, Ca2+, Sr2+, Ba2+), organic linker structures (length, substitution patterns, functional groups), and synthesis conditions (temperature, pH, solvent, reaction time) to tune the framework's porosity, stability, and gas interaction properties. This enables optimization of CO2 uptake capacity and reversibility while maintaining structural integrity
Solution Approach 2:
The patent employs composite materials by combining metal ions with organic linkers containing specific functional groups (carboxylic acids, phenols, pyridines, amines, phosphonates) to create metal-organic frameworks with enhanced and tunable properties. The synergistic interaction between metal nodes and organic linkers provides both structural stability and customizable gas separation/selectivity capabilities
2Reliability
If metal porous frameworks are used for gas separation, then separation capability is provided, but reversibility and tunability are limited
Solution Approach 1:
The patent utilizes parameter changes by adjusting metal ion selection, organic linker functionalization, and framework topology to create materials with tailored pore sizes, surface chemistries, and binding energies. This enables reversible gas adsorption/desorption cycles while maintaining high separation selectivity for CO2 from gas mixtures
Solution Approach 2:
The patent implements continuity of useful action by designing frameworks with permanent porosity and stable metal-ligand bonds that maintain separation capability over multiple adsorption-desorption cycles. The robust structure ensures continuous operational effectiveness without degradation, enabling sustained CO2 separation and storage applications
3Quantity of substance
If carbon frameworks are used for energy storage in supercapacitors, then energy storage capacity is provided, but tunability and performance are insufficient
Solution Approach 1:
The patent applies parameter changes by varying metal ion types (particularly Cu2+, Ni2+, Co2+), organic linker structures, and framework porosity to tune electrical conductivity, surface area, and ion transport properties. This optimization enhances energy storage capacity while providing adaptability for different supercapacitor configurations and electrolyte systems
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 metal catecholate frameworks exhibit enhanced gas separation capabilities, tunable conductance, and improved energy storage performance, addressing the limitations of existing technologies by offering a reversible and customizable solution for carbon dioxide uptake and energy storage.
Implementation Method 1
Metal Catecholate Frameworks Comprising Homogenous or Heterogeneous Metals Linked by Catechol-based Moieties
Implementation Method 2
exhibit enhanced gas separation capabilities, tunable conductance, and improved energy storage performance, addressing the limitations of existing technologies by offering a reversible and customizable solution for carbon dioxide uptake
Data Source
AI summary
The disclosure provides for metal catecholate frameworks, and methods of use thereof, including gas separation, gas storage, catalysis, tunable conductors, supercapacitors, and sensors.