Sentences with phrase «metal organic framework»

One was a metal organic framework called MOF - 5 and the other was activated charcoal.

To build a better puff of smoke, Zander and his colleagues in the Smoke & Obscurants, Pyrotechnics, and Chemical Biological Filtration Branches started thinking about using a metal organic framework (MOF).

The new water harvester is made of metal organic framework crystals pressed into a thin sheet of copper metal and placed between a solar absorber (above) and a condenser plate (below).

They belong to a family of versatile porous materials called metal organic frameworks, which have a wide variety of other potential applications.

A team of University of Illinois bioengineers has taken a new look at an old tool to help characterize a class of materials called metal organic frameworks — MOFs for short.

Metal organic frameworks (MOFs) are proving to be incredibly flexible with a myriad of potential applications including as antimicrobial agents, hydrogen - storage materials and solar - cell components.

To find an all - purpose solution, researchers led by Omar Yaghi, a chemist at the University of California, Berkeley, turned to a family of crystalline powders called metal organic frameworks, or MOFs.

«Don't call them stiff: Metal organic frameworks show unexpected flexibility.»

Over time, the zinc ions in MOF - 5 (pink solutions) get replaced with cobalt ions, (blue solutions) demonstrating the dynamics of metal organic frameworks.

Their convenient and practical preparation entailed template assembly of cobalt - diamine - dicarboxylic acid metal organic frameworks on carbon and subsequent pyrolysis under inert atmosphere.

«A new way to look at metal organic frameworks: International study challenges prevailing view on how metal organic frameworks store gases.»

«This places the new material in the exclusive class of porous, high surface area materials including mesoporous silica, zeolites, metal organic frameworks, and carbon nanotubes,» says Strømme.

He said the Rice compound compared favorably with other carbon - capture candidates based on metal organic frameworks (MOFs).

Novel metal organic frameworks have shown significant potential as CO2 sorbents.»

Scientists based at Imperial College London have tested a new type of nanoparticle called metal organic frameworks (MOF)-- tiny metal cages less than...

He is currently conducting research into metal organic frameworks for carbon sequestration.

A new study by an international team of researchers, affiliated with UNIST has announced that they have succeeded in developing a novel deuterium separation method, using a special class of metal organic frameworks (MOFs) whose pore dimensi... Read More

A. Dieter Schlüter of the Swiss Federal Institute of Technology (ETH), Zurich, demonstrated a different approach and applied it to a related material — metal organic frameworks (MOFs), which are porous crystalline materials composed of metal ions joined by organic linkers.

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.

Two major classes of these systems are metal organic frameworks (MOFs) and covalent organic frameworks (COFs) but a major challenge in carbon dioxide capture has been to carry it out in the presence of water; that challenge is now being met by MOFs and COFs.

A team of Berkeley Lab and UC Berkeley researchers have developed a method for accurately predicting the ability of MTV - MOFs (multivariate metal organic frameworks) to scrub carbon dioxide from the exhaust gases of fossil fuel power plants.

Not exact matches

Previously, the mechanical stability of a hybrid membrane limited the amount of metal - organic frameworks that could be packed in it.

«The prospect of using metal - organic frameworks for sustainable water filtration is incredibly exciting from a public - good perspective, while delivering a better way of extracting lithium ions to meet global demand could create new industries,» said Anita Hill, CSIRO's chief scientist.

But, until now, scientists have not been able to engineer hybrid membranes with enough metal - organic frameworks to form continuous channels through the membrane.

The researchers focused on a hybrid membrane that is part polymer and part metal - organic framework, which is a porous three - dimensional crystal with a large internal surface area that can absorb enormous quantities of molecules.

When that happens, the hybrid membrane switches from having a single channel to transport carbon dioxide, in which the molecules must go through the polymer, to two channels, in which the molecules can either move through the polymer or through the metal - organic framework highways.

These hybrids harness the carbon dioxide selectivity of metal - organic frameworks while maintaining the processability of polymers.

Or molecules can flow through «carbon dioxide highways» created by adjacent metal - organic frameworks.

The team's technique uses a metal - organic - framework membrane that mimics the filtering function, or «ion selectivity,» of biological cell membranes.

Metal - organic frameworks have potential for a large range of applications, including fuel storage, drug delivery, and carbon capture.

«With nanoengineering, we made a unique metal - organic framework structure that solves the big problems of conductivity, and access to active sites,» says Zhao.

Until now, metal - organic frameworks were considered poor conductors and not very useful for electrochemical reactions.

We were able to demonstrate that metal - organic frameworks can be highly conductive, challenging the common concept of these materials as inert electro - catalysts.»

By creating nanometre - thick arrays of metal - organic frameworks, Zhao's team was able to expose the pores and increase the surface area for electrical contact with the water.

«Hot «new» material found to exist in nature: Rare minerals from Siberia found to have same structure as some man - made metal - organic frameworks.»

One of the hottest new materials is a class of porous solids known as metal - organic frameworks, or MOFs.

Metal - organic frameworks (MOFs) based on lanthanides (Ln - MOFs) offer a wide range of possibilities for targeted variations in structure.

To gain this new understanding into the behavior of matter at the nanoscale, García - Garibay's research group designed three rotating nanomaterials known as MOFs, or metal - organic frameworks, which they call UCLA - R1, UCLA - R2 and UCLA - R3 (the «r» stands for rotor).

The structure of neon captured within the framework known as NiMOF - 74, a porous framework built from nickel metal centres and organic linkers, shows clear nickel to neon interactions forming at low temperatures significantly shorter than would be expected from a typical weak contact.

Neon is well known for being the most unreactive element and is a key component in semiconductor manufacturing, but neon has never been studied within an organic or metal - organic framework until now.

We constructed highly oriented and ordered macropores within metal - organic framework (MOF) single crystals, opening up the area of three - dimensional — ordered macro-microporous materials (that is, materials containing both macro - and micropores) in single - crystalline form.

Shen et al. grew ordered arrays of microcrystals of the ZIF - 8 metal - organic framework, in which zinc ions are bridged by 2 - methylimidazole linkers, inside a porous polystyrene template.

Cobalt nanoparticles prepared from a metal - organic framework precursor catalyze a very broad range of reductive aminations.

Known for their exceptional porosity that enables the trapping or transport of molecules, metal - organic frameworks (MOFs) take the form of a powder, which makes them difficult to format.

The catalyst was synthesised using porous crystals called metal - organic frameworks which allow precise spatial control of the chemical elements.

«A molecular thread: Flexible metal — organic frameworks with a range of pore sizes are made by threading through molecular ligands.»

A few kilometres away in Sion, high in the Swiss Alps, computational chemist Berend Smit has set up another EPFL centre that develops algorithms for predicting hundreds of thousands of nanoporous zeolites and metal — organic frameworks.

The findings, published in the journal Science, show that materials called metal - organic frameworks (MOFs) can effectively remove the contaminant acetylene from ethylene, the material from which much of the world's plastic is made.

Recently, scientists have begun exploring the use of zirconium - based metal - organic framework (MOF) powders to degrade and destroy these harmful compounds.

SIFSIX metal - organic frameworks (center) can capture the acetylene efficiently, leaving pure ethylene (right).