Porous Ionic Solid Crystal Lattice for Ion Exchange and Adsorption
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Solution Overview
Problem
Existing ionic solids lack new functional capabilities beyond their inherent properties, limiting their applications in electrochemical devices, gas adsorbents, and molecular recognition materials.
Innovation Solution
Development of an ionic solid with defined pores in its crystal lattice that can incorporate substances such as water, polyacids, inorganic salts, and hydrophilic compounds, enabling its use as an electrochemical device, gas adsorbent, solvent vapor adsorbent, molecular recognition material, metal ion exchanger, or anion exchanger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an ionic solid is formed with a dense crystal lattice structure, then structural stability is improved, but porosity and ability to incorporate substances deteriorates
Solution Approach 1:
The patent applies the porous materials principle by designing an ionic solid with a crystal lattice containing defined pores and voids. The lattice is constructed from cationic polynuclear metal complexes that self-assemble to create intrinsic porosity, allowing substance incorporation while maintaining structural stability through strong coordination bonds and electrostatic interactions.
Solution Approach 2:
The patent employs composite materials principle by combining organic ligands with inorganic metal centers to form polynuclear metal complexes. These composite structures create a hybrid crystal lattice that integrates both organic and inorganic components, enabling simultaneous achievement of structural stability and porosity for substance incorporation.
2Device complexity
If traditional ionic solids are used, then structural simplicity is maintained, but functional versatility deteriorates
Solution Approach 1:
The patent applies the universality principle by designing an ionic solid platform that can perform multiple functions through substance incorporation in its pores. The same crystal lattice structure can accommodate different substances (gases, liquids, ions) and exhibit diverse functions including gas adsorption, ion exchange, electrochemical activity, and molecular recognition, eliminating the need for multiple different materials.
Solution Approach 2:
The patent employs parameter changes principle by modifying the chemical composition and properties of substances incorporated in the pores to achieve different functions. By changing the type, concentration, and nature of incorporated substances, the ionic solid can be tuned to exhibit various functional characteristics while maintaining the same underlying crystal lattice structure.
3Reliability
If ion mobility is increased for better ion exchange capability, then ion conductivity is improved, but structural stability deteriorates
Solution Approach 1:
The patent applies the segmentation principle by separating the structural framework from the mobile ion pathways. The crystal lattice is divided into stable framework components (metal complexes connected by ligands) and mobile components (ions and solvents in pores). This segmentation allows the framework to maintain structural stability while the pore contents provide high ion mobility and conductivity.
Solution Approach 2:
The patent employs the intermediary principle by using solvent molecules and incorporated substances as mediators between the stable crystal lattice and mobile ions. These intermediaries facilitate ion transport through the pores while the lattice itself remains structurally stable, enabling high ion conductivity without compromising structural integrity.
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 ionic solid exhibits enhanced functionality as a material for electrochemical devices, providing a reaction field, gas adsorption, solvent vapor adsorption, molecular recognition, and ion exchange, with improved ion conductivity and porosity.
Implementation Method 1
water vapor, carbon dioxide, or the like is adsorbed into the pores of the porous material
Implementation Method 2
a metal cation has high fluidity inside the ionic solid and has a function as an ion exchanger which is exchanged with an external metal cation
Implementation Method 3
a metal cation has high fluidity inside the ionic solid
Data Source
AI summary
An ionic solid having pores may be useful for incorporating a substance therein. Such an ionic solid may have pores for incorporating a substance therein. The pores may be formed by a crystal lattice of a metal complex. A hydrophilic substance having a molecular weight of 60 or larger may be included in the pores. The hydrophilic substance may be selected from a polyhydric alcohol, a cyclic oligosaccharide, a saccharide, a sugar alcohol, and an amino acid. The hydrophilic substance may be a guest compound.