Addition of amines to metal-organic frameworks

JP2024542500A5Pending Publication Date: 2025-12-01EXXONMOBIL TECHNOLOGY & ENGINEERING CO +1
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Patent Information

Application Number
JP2024529939
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2021-11-24
Filing Date
2022-11-22
Publication Date
2025-12-01

AI Technical Summary

Technical Problem

Conventional methods for adding amines to metal-organic frameworks (MOFs) involve reacting MOF materials with amine-containing compounds in organic solvents at elevated temperatures, which are difficult to scale up due to safety concerns and require multiple solvent wash steps, making them unsuitable for commercial production.

Method used

A method for adding amines to MOFs by incorporating polyamines directly into the synthesis solution, using protic solvents like water or alcohol, allowing MOF formation without prior separation and drying, thereby simplifying the process and reducing the need for organic solvents.

Benefits of technology

This approach enables the production of amined MOFs with enhanced sorption capacity and altered sorption isotherms, simplifying the synthesis process, reducing solvent use, and minimizing handling hazards, making it suitable for commercial-scale production.

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Abstract

Methods are provided for adding amines to metal-organic framework (MOF) compositions. In some embodiments, the methods may allow the addition of amines in the solution or synthesis solution used to synthesize the MOF. In such embodiments, amine-added MOFs can be formed without the need to first isolate and dry the underlying non-amine-added MOF composition. In other embodiments, amines can be added to existing MOF compositions by exposing the MOF to a suitable amine in a protic solvent such as water or alcohol.
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