Metal-Organic Frameworks Thermal Stability Synthesis

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Solution Overview

Problem

The current process of preparing and using metal-organic frameworks (MOFs) for gas separation is hindered by their low thermal stability and high production costs, limiting their practical application.

Innovation Solution

Developing a method to synthesize MOFs with improved thermal stability and cost-effectiveness by using a solvothermal approach with a combination of zinc ions and terphthalic acid, along with a post-synthetic modification to enhance their structural integrity and reduce production costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If conventional methods are used to prepare metal-organic frameworks for gas separation, then the frameworks can be synthesized, but they exhibit low thermal stability and high production costs

Engineering Contradiction:
Improvethermal stabilityVSAvoidproduction cost
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent employs solvothermal synthesis conditions with specific temperature ranges (80-120°C) and pressure conditions to optimize the formation of metal-organic frameworks. By carefully controlling these parameters, the method achieves enhanced thermal stability in the resulting MOFs while maintaining cost-effective synthesis through moderate processing conditions rather than extreme temperatures or pressures

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates composite metal-organic frameworks by combining specific metal ions (Zn²⁺, Cu²⁺, Ni²⁺) with organic linkers (terephthalic acid, trimesic acid) to form hybrid structures. These composite materials exhibit synergistic effects where the combination of metallic nodes and organic struts produces frameworks with superior thermal stability compared to individual components, while the use of abundant metals like zinc reduces production costs

Inventive Principle:
Principle #40Composite materials

2Reliability

If conventional methods are used to prepare metal-organic frameworks, then synthesis can proceed, but separation efficiency is limited

Engineering Contradiction:
Improveseparation efficiencyVSAvoidsynthesis complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent modifies specific local regions of the metal-organic framework by incorporating functional groups at particular sites within the structure. This local functionalization enhances gas separation efficiency at critical interaction points without requiring complete restructuring of the entire framework, thereby improving performance while limiting the increase in synthesis complexity

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent performs preliminary characterization and optimization of framework structures before final synthesis. By pre-selecting metal-ion and organic-linker combinations based on predicted separation performance, the method avoids complex trial-and-error synthesis procedures, achieving high separation efficiency through informed design rather than complex iterative processes

Inventive Principle:
Principle #10Preliminary action

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 MOFs exhibit enhanced thermal stability and separation efficiency while reducing production costs, making them more viable for industrial gas separation applications.

Implementation Method 1

a solvothermal approach with a combination of zinc ions and terphthalic acid

Methodology Applied
Scientific EffectSolvothermal synthesis:

Implementation Method 2

The resulting MOFs exhibit enhanced thermal stability and separation efficiency

Methodology Applied
Scientific EffectAdsorption: Adsorption

Data Source

PatentUS11301519B2Method and system for embedding hyperlinks in legal documents
Publication Date: 2022.04.12 HYPERCITE INC
  • US11301519B2 patent drawing
  • US11301519B2 patent drawing
  • US11301519B2 patent drawing

AI summary

A method for embedding hyperlinks in legal documents. The method can include receiving input including docx and PDF documents, converting the input into text, parsing the converted text by pattern recognition, and generating an output of a parent PDF document containing attached documents with hyperlinks, the hyperlinks identifying between the attached documents.