MOFs / COFs

COFs and their cousin materials, metal organic frameworks (MOFs), are porous three-dimensional crystals with extraordinarily large internal surface areas that can absorb and store enormous quantities of targeted molecules. Invented by UC Berkeley's Professor Omar Yaghi, COFs and MOFs consist of molecules (organics for COFs and metal-organics for MOFs) that are stitched into large and extended netlike frameworks whose structures are held together by strong chemical bonds. Such frameworks show great promise for, among other applications, carbon sequestration.

Reticular chemistry in all dimensions

August 6, 2019

Richmond Sarpong

In a new virtual collection from ACS Central Science, recently published articles about new research into reticular chemistry are highlighted. Omar Yaghi, The James and Neeltje Tretter Professor of Chemistry, pens the introduction.

Some of the topics covered in the issue include: electric field response of MOFs; PolyCOFs; porous aromatic frameworks; improving the mechanical stability of MOFS using chemical caryatids; computational design of functionalized MOF nodes for catalysis; porous molecular solids and liquids; and rapid, elective heavy metal removal from water by MOFs/polydopamine composite.

Scientists introduce a new framework for artificial photosynthesis

June 24, 2019

artificial photosynthesisScientists have long sought to mimic the process by which plants make their own fuel using sunlight, carbon dioxide, and water through artificial photosynthesis devices, but how exactly substances called catalysts work to generate renewable fuel remains a mystery.

MOF water harvesting technology one of ten innovations that could change the world

April 4, 2019

Testing the water harvester

The International Union of Pure and Applied Chemistry (IUPAC) has released the results of its first search for the Top Ten Emerging Technologies in Chemistry. Initiated as a special activity in honor of IUPAC’s 100th anniversary this year, the results have been published in the 2019 April-June 2019 issue of Chemistry International. Research from the lab of Omar Yaghi on water harvesting from desert air technology has been featured as one of the top 10.

Scientists discover hydration is key to improving catalyst performance for industrial use

April 4, 2019

NanoEP experiment

Scientists have used neutron scattering to identify the secret to a metal-organic framework's (MOF) ability to efficiently convert chemicals, through a process called catalysis, into new substances. By probing a material known as MOF-808-SO4, the team discovered molecular behavior that causes the catalyst to become less acidic, which could slow down the catalytic process vital in making products such as plastics, fragrances, cosmetics, flame retardants and solvents.

Paving the way for more efficient hydrogen cars

December 7, 2018

New hydrogen-powered vehicle research

Hydrogen-powered vehicles emit only water vapor from their tailpipes, offering a cleaner alternative to fossil-fuel-based transportation. But for hydrogen cars to become mainstream, scientists need to develop more efficient hydrogen-storage systems. Now, a group of scientists reporting in ACS' Chemistry of Materials have used metal–organic frameworks (MOFs) to set a new record for hydrogen storage capacity under normal operating conditions.

Molecular decoration determines origin of MOF acidity

November 29, 2018

MOF-808-SO4

Researchers have pinpointed the strong acid site of a sulfated-zirconium MOF catalyst by identifying a specific molecular decoration within its structure. The work could aid studies into solid acid-catalysed reaction mechanisms as well as the development of next-generation solid acid catalysts for many industrial applications. (image: MOF 808 and MOF 808-SO4

A material to save the world?

November 6, 2018

MOF diagram by Mathieu Provet, UC Berkeley.Metal-organic frameworks are compounds that are set to solve some tough challenges: producing water in the desert, removing greenhouse gases from the air and storing dangerous gases more safely.

Omar Yaghi wins BBVA Frontiers of Knowledge Award in the Basic Sciences

January 23, 2018

Omar YaghiThe BBVA Foundation Frontiers of Knowledge Award in the Basic Sciences category goes, in this tenth edition, to Jordanian-American chemist Omar Yaghi, “for his pioneering work in the conception and synthesis of new...

Meet Metal-Organic Frameworks, Chemistry’s New Miracle Materials

September 20, 2018

MOFS float above the desert. Photo courtesy California Magazine.

Metal–organic frameworks (MOFs) are a revolutionary new class of crystalline solids that can be designed to trap myriad kinds of matter, including greenhouse gases, or to be used as nanosized drug carriers. They can also pull water from desert air.

Professors Omar Yaghi and Michael O’Keeffe receive award from the Royal Swedish Academy of Sciences

September 19, 2018

Array of Lithium Ion batteries stacked side by side.The Royal Swedish Academy of Sciences has awarded the 2019 Gregori Aminoff Prize in Crystallography to Michael O’Keeffe, Arizona State University, and Omar M. Yaghi, University of California, “for their fundamental contributions to the development of reticular chemistry”.