Sentences with phrase «organic frameworks»

He is currently conducting research into metal organic frameworks for carbon sequestration.
At that threshold, there are so many metal organic frameworks in the membrane that they form a continuous network of highways through the membrane.
William Dichtel, a chemist at Northwestern University, Chicago, has developed polymer networks called covalent organic frameworks to work directly in ultracapacitors without needing pyrolysis.
«This strategy of exploiting the effective condensation reaction to synthesize organic frameworks with high uptake capacity and high physiochemical stabilities hold huge promise for practical applications.»
Their convenient and practical preparation entailed template assembly of cobalt - diamine - dicarboxylic acid metal organic frameworks on carbon and subsequent pyrolysis under inert atmosphere.
Besides, unlike the existing 3D organic frameworks, the structure of resulting material is highly stable in a practical range of thermal and physiochemical conditions.
«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.
The cobalt - based metal - organic framework used by the USC scientists, with purple representing cobalt, yellow representing sulfur and gray representing carbon.
The natural porosity of the metal - organic framework makes it ideal for reducing the mass of material, allowing for lighter, more compact devices» said Brent Melot, assistant professor of chemistry at the USC Dornsife College of Letters, Arts & Sciences.
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.
In this latest research, Berkeley Lab scientists have developed a hybrid membrane in which metal - organic frameworks account for 50 percent of its weight, which is about 20 percent more than other hybrid membranes.
«With nanoengineering, we made a unique metal - organic framework structure that solves the big problems of conductivity, and access to active sites,» says Zhao.
«Tiny glow sticks: Microrods made of lanthanoid organic frameworks act as microscale optical waveguides.»
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).
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.
«Don't call them stiff: Metal organic frameworks show unexpected flexibility.»
A double - solvent method and templating are used to grow ordered arrays of metal - organic framework microcrystals.
Cobalt nanoparticles prepared from a metal - organic framework precursor catalyze a very broad range of reductive aminations.
The catalyst was synthesised using porous crystals called metal - organic frameworks which allow precise spatial control of the chemical elements.
Crystalline sheets exfoliated from layered metal - organic framework materials are formed into selective membranes.
A continuous - flow micro-reactor packed with metal - organic framework catalyst promotes the conversion of propylene into propane.
Specifically, a metal - organic framework compound, copper [1,3 - benzenedicarboxylate] with a unique arrangement of copper atoms in a crystal, has been shown to exhibit this novel behavior.
The metal - organic framework designed by the scientists demonstrated its greatest conductivity at both very low and very high temperatures.
To facilitate the hydrogenation, enzymes utilize a «smart» arrangement where the surrounding organic framework cooperates with a metal atom — like iron - efficiently kick - starting the reaction.
More information: Low - dose X-ray radiotherapy — radiodynamic therapy via nanoscale metal — organic frameworks enhances checkpoint blockade immunotherapy.
«A new way to display the 3 - D structure of molecules: Metal - organic frameworks provide a new platform for solving the structure of hard - to - study samples.»
According to the press release, by binding repellant and fabric at the nanolevel using metal organic framework molecules, the mesh fabric can be loaded with up to three times more insecticide than normal nets, which usually dissipate after about six months.
An international collaboration led by Berkeley Lab scientists has woven the first 3D covalent organic frameworks (COFs) from helical organic threads.
In situ high pressure gas flow experiments performed at X-Ray Science Division beamline 17 - BM at the APS using the X-ray powder diffraction technique at low temperatures managed to elucidate the structure of two different metal - organic frameworks with neon gas captured within the materials.
There's expert opinion about papers in three exciting areas: electrochemistry for fuel production; flexible metal — organic frameworks for molecular separations; and synthetic organic chemistry.
One was a metal organic framework called MOF - 5 and the other was activated charcoal.
Or molecules can flow through «carbon dioxide highways» created by adjacent metal - organic frameworks.
To overcome this, scientists have developed hybrid membranes that are part polymer and part metal - organic framework.
Previously, the mechanical stability of a hybrid membrane limited the amount of metal - organic frameworks that could be packed in it.
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.
«In our membrane, some CO2 molecules get an express ride through the highways formed by metal - organic frameworks, while others take the polymer pathway.
Until now, metal - organic frameworks were considered poor conductors and not very useful for electrochemical reactions.
As reported in the journal Angewandte Chemie, they have made microrods of lanthanide metal - organic frameworks.
The mesh, called a metal - organic framework, contains tiny spaces perfect for grabbing and holding onto water molecules.
Metal - organic frameworks have potential for a large range of applications, including fuel storage, drug delivery, and carbon capture.
We were able to demonstrate that metal - organic frameworks can be highly conductive, challenging the common concept of these materials as inert electro - catalysts.»
Material chemists in the Kingdom of Saudi Arabia have developed a superporous solid made up of a patchwork of metal ions and organic linkers (a metal - organic framework, or MOF) that can suck up to 200 % of its own weight in atmospheric moisture.
One of the hottest new materials is a class of porous solids known as metal - organic frameworks, or MOFs.
They belong to a family of versatile porous materials called metal organic frameworks, which have a wide variety of other potential applications.
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
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.

Phrases with «organic frameworks»

a b c d e f g h i j k l m n o p q r s t u v w x y z