Metal-organic framework with optimized open metal sites and pore spaces for high methane storage at room temperature

Patent metadata

Field	Value
Publication number	US-9376641-B2
Application number	US-201213984724-A
Country	US
Kind code	B2
Filing date	Feb 15, 2012
Priority date	Feb 15, 2011
Publication date	Jun 28, 2016
Grant date	Jun 28, 2016

Abstract

A 3D porous metal-organic framework and method of making are described. In some embodiments, a 3D porous metal-organic framework may be based on a trinodal (3,3,4) net of zyg topology by the self-assembly of the nonlinear hexacarboxylate (BHB) with the paddle-wheel Cu 2 (COO) 4 cluster. Although its porosity and surface area are moderate, the open copper sites and optimal pore spaces enable the pore spaces to be fully utilized for methane storage, resulting in a high methane storage density and high absolute volumetric methane storage at room temperature and 35 bar. By the immobilization of high density open metal sites and the deliberate control of the pore space for their efficient methane storage, this porous MOF functions as an efficient media for methane and natural gas storage.

First claim

What is claimed is:

1. A metal-organic framework comprising a 3,3′,3″,5,5′,5″-benzene-1,3,5-triyl-hexabenzoate or a derivative thereof and copper, made by the method comprising:
reacting 3,3′,3″,5,5′,5″-benzene-1,3,5-triyl-hexabenzoic acid and a copper salt and an acid in a polar solvent;
allowing the reaction to run at a temperature of at least 50° C. for at least one day; and
separating the metal-organic framework from the polar solvent.

2. The metal-or…

Assignees

• Chen Banglin
• Guo Zhiyong
• Univ Texas

Inventors

• Chen Banglin
• Guo Zhiyong

Classifications

• B01J20/226 Primary

  Operations & Transport · mapped topic

• C10L3/10

  Chemistry & Metallurgy · mapped topic

• C07F1/08

  Chemistry & Metallurgy · mapped topic

• C10L3/003 Primary

  Chemistry & Metallurgy · mapped topic

• C07C63/331

  Chemistry & Metallurgy · mapped topic