Multidentate Ligand Coordination Polymers for High Surface Area Gas Sorption
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Solution Overview
Problem
Existing microporous materials have relatively low surface areas and broad pore size distributions, limiting their effectiveness in sorption and storage applications.
Innovation Solution
Development of novel multidentate ligands, such as those described by Formulas I and II, which are used to form porous coordination polymers with specific metal clusters, optimizing surface area and pore structure for enhanced gas storage and sorption capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional microporous materials are used, then material structure is simple and ease of manufacture is good, but surface area is low and pore size distribution is broad
Solution Approach 1:
The patent employs coordination polymers that combine organic multidentate ligands with metal ions to form composite microporous materials. This composite approach enables achievement of high surface area (exceeding 2000 m²/g) while maintaining structural definition through the ordered assembly of organic and inorganic components.
Solution Approach 2:
The invention designs and synthesizes porous coordination polymers with controlled pore structures. By using multidentate ligands with specific geometries and coordinating them with metal ions, the patent creates materials with defined pore sizes and high surface areas, directly addressing the limitation of broad pore size distributions in conventional materials.
2Productivity
If coordination polymers with high surface area are synthesized, then sorption performance is improved, but manufacturing complexity increases
Solution Approach 1:
The patent optimizes synthesis parameters including solvent selection, temperature, pH, and metal-to-ligand ratios to facilitate the formation of high-surface-area coordination polymers. By carefully controlling these parameters, the invention achieves high sorption capacity (surface areas exceeding 2000 m²/g) while managing synthesis complexity through systematic parameter optimization.
Solution Approach 2:
The multidentate ligands designed in this patent serve multiple functions: they provide structural framework, define pore geometry, and offer tunable chemical functionality for guest molecule interaction. This multi-functionality allows a single ligand design to simultaneously achieve high surface area and controlled pore structure, improving sorption performance without proportionally increasing manufacturing complexity.
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 resulting coordination polymers exhibit improved surface areas and tunable pore dimensions, enhancing their performance in gas storage and sorption applications, including hydrogen, carbon dioxide, and other adsorbable species.
Implementation Method 1
coordination polymers have demonstrated a high efficiency for the uptake of several gases and organic molecules
Data Source
AI summary
A linking ligand compound includes three bidentate chemical moieties distributed about a central chemical moiety. Another linking ligand compound includes a bidentate linking ligand and a monodentate chemical moiety. Coordination polymers include a plurality of metal clusters linked together by residues of the linking ligand compounds.