Organometallic Surface Functionalization of Inorganic Substrates
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Solution Overview
Problem
Existing methods for surface modification of inorganic substrates, such as ceramic membranes, require extensive drying and high temperatures, making them costly, energy-intensive, and time-consuming, limiting their scalability and complexity.
Innovation Solution
A method involving the use of an organometallic reagent, like Grignard reagents, to modify the surface of inorganic substrates at atmospheric pressure and lower temperatures, eliminating the need for extensive drying and reducing processing steps, while achieving effective organic functionalization through direct M-C bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If extensive drying and high temperature treatment are used for surface modification, then the surface modification quality is improved, but the energy consumption and processing time increase significantly
Solution Approach 1:
The patent changes the reaction parameters by using organometallic reagents that can form direct M-C bonds at lower temperatures and atmospheric pressure, eliminating the need for extensive drying and high temperature treatment while maintaining surface modification quality
Solution Approach 2:
The patent replaces the mechanical/thermal drying process with a chemical approach using organometallic reagents that can react with surface hydroxyl groups directly, substituting the need for extensive thermal treatment
2Manufacturing precision
If extensive drying and high temperature treatment are used for surface modification, then the surface modification quality is improved, but the processing time increases
Solution Approach 1:
The patent changes the reaction parameters by using organometallic reagents that can form direct M-C bonds at lower temperatures and atmospheric pressure, significantly reducing processing time while maintaining surface modification quality
Solution Approach 2:
The patent skips the extensive drying step by using organometallic reagents that can effectively react with surface hydroxyl groups even with minimal drying, rushing through the process to achieve the desired surface modification
3Manufacturing precision
If extensive drying and high temperature treatment are used for surface modification, then the surface modification quality is improved, but the process complexity and cost increase
Solution Approach 1:
The patent changes the reaction parameters by using organometallic reagents that can form direct M-C bonds at lower temperatures and atmospheric pressure, simplifying the equipment requirements and reducing process complexity while maintaining surface modification quality
Solution Approach 2:
The patent extracts and eliminates the need for complex high temperature vacuum drying equipment by using organometallic reagents that can perform surface modification under simpler atmospheric pressure conditions
4Adaptability or versatility
If organosilane agents with oxygen bridges are used for surface modification, then the surface can be functionalized, but the organic functional groups may leach from the substrate
Solution Approach 1:
The patent creates a more stable copy of the surface functionalization by forming direct M-C bonds between the metalloid/metal atoms and carbon atoms of the organic functional groups, replacing the less stable oxygen bridge connections
Solution Approach 2:
The patent inverts the bonding approach by having metalloid/metal atoms directly bond to carbon atoms of organic groups, rather than using oxygen as an intermediary, thereby creating more stable bonds
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
This approach results in a more economical, less complex, and faster process for producing organic functionalized inorganic substrates, reducing energy consumption and enabling easier scaling up to industrial scales without compromising the degree of surface modification.
Implementation Method 1
The at least one organic functional moiety is attached to the element M of the hydroxide and/or the oxide by means of a direct M-C bond
Implementation Method 2
The drying step comprises contacting the inorganic substrate with a flow comprising an inert gas and/or dry air
Data Source
AI summary
Methods are disclosed for producing an organic functionalized solid inorganic substrate, a surface of the inorganic substrate comprising a hydroxide and/or an oxide comprising an element M, the element M being a metal or a metalloid. The method includes drying the surface; optionally removing protons from the surface; and contacting the surface with an organometallic reagent comprising at least one organic functional moiety, thereby obtaining the organic functionalized inorganic substrate, the at least one organic functional moiety being attached to the element M of the hydroxide and/or the oxide by means of a direct M-C bond. The drying step includes contacting the surface with a flow comprising an inert gas. The organic functionalized inorganic substrate obtained by the method may be used as a membrane, a catalyst, a sorbent, a sensor or an electronic component, or as a substrate in filtration, adsorption, chromatography and/or separation processes.