Unlock instant, AI-driven research and patent intelligence for your innovation.

Metal-organic framework phase and crystallite shape control

A metal-organic framework, organic technology, applied in the direction of iron group organic compounds without C-metal bonds, 6/16 groups of organic compounds without C-metal bonds, 2/12 groups of organic compounds without C-metal bonds, etc. , which can solve problems such as affecting the growth of metal organic frameworks

Pending Publication Date: 2021-05-07
RGT UNIV OF CALIFORNIA +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Both solution pH and complexing agent addition are known to affect MOF growth, and previous attempts to control crystallite size and shape have focused on them separately without attempting to control these variables independently

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metal-organic framework phase and crystallite shape control
  • Metal-organic framework phase and crystallite shape control
  • Metal-organic framework phase and crystallite shape control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] I. Introduction

[0075] The present disclosure provides the synthesis of crystalline metal organic frameworks (MOFs). These MOFs contain polyhedral organic linkers and metal cations, wherein each polyhedral organic linker is linked to two or more metal cations. In the disclosed method, the linker is combined with the formula M n X m Reactions of compounds where M is the cation Be, Mg, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Rh, Pd, Cd, or Hf, and X is A basic anion, and n is a positive integer (eg, 1, 2, etc.) and m is a positive integer (eg, 1, 2, etc.). In some embodiments, when the pKa of the basic anion is lower than the lowest pKa value of the linking group, in the presence of a buffer lacking metal coordinating functionality (eg, morpholine, piperazine, ethylenediamine, or methylenediamine) The reaction is carried out in the case of alkyl or alkylsulfonate derivatives of amines). In some embodiments, when the pKa of the basic anion is higher t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
widthaaaaaaaaaa
widthaaaaaaaaaa
Login to View More

Abstract

Methods of synthesizing crystalline metal-organic frameworks (MOFs) comprising polytopic organic linkers and cations, wherein each linker is connected to two or more cations, are provided. In the disclosed methods, the linkers are reacted with a compound of formula M n X m , where M is cationic Be, Mg, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Rh, Pd, Cd, or Hf, X is anionic, n and m are integers. The reacting is buffered by a buffer devoid of metal coordinating functionality when the pKa of the anion is below a threshold related to the lowest pKa of the linker. The reacting is optionally not buffered when the pKa of the anion is at or above this threshold. The disclosed methods lead to product phase MOF in which crystal growth is controlled leading to control over molecular diffusion.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority to US Provisional Patent Application No. 62 / 738,880, filed September 28, 2018, entitled "Metal-Organic Framework Phase and Crystallite Shape Control," which Incorporated herein by reference. technical field [0003] The present application relates to the synthesis of metal organic frameworks (MOFs) under conditions that affect the material phase and crystallite size and shape of such metal organic frameworks, thereby enhancing the adsorption properties of such materials. Background technique [0004] Porous materials are useful as adsorbents and catalysts in a wide range of technologies such as chemical separation, energy storage, and catalysis. Potential industrial applications for specific classes of porous materials (metal organic frameworks) include methane conversion, hydrocarbon separation and catalysis, noble gas separation, and carbon dioxide capture from flue gases. See, eg, L...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C07F3/06C07F15/02C07F15/06B01J20/22
CPCC07F3/06C07F15/065C07F15/025B01J20/226B01J20/3085Y02C20/40C07F15/06C07F15/02C07F3/003C07F3/006C07F3/02C07F7/003C07F7/28C07F11/005C07F15/0066C07F15/008C07F15/045
Inventor S·C·威斯顿J·R·龙J·M·法尔科夫斯基K·科尔韦尔R·托里斯
Owner RGT UNIV OF CALIFORNIA