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

US9376641B2 · kind B2 · utility

Assignee

• The Board of Regents of the University of Texas System · US

Inventors

• Banglin Chen · San Antonio, US
• Zhiyong Guo · Longbeilingcun, CN

Key dates

• Filing date: Feb 15, 2012
• Grant date: Jun 28, 2016
• Expiry date: Feb 15, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F17C11/007
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

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 Cu2(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.