Sentences with phrase «on zeolites»

His graduate work involved the investigation of toluene alkylation on zeolites, and studying the acid - base properties of zeolites.

The latter focuses on zeolites and metal — organic frameworks: sponge - like materials with regularly repeating holes in their crystal structures that can trap gas molecules and could be used to store methane or carbon dioxide.

Both are based on zeolites, i.e. special minerals of porous structure.

Zooming in on the zeolite's structure and reconstructing it with NWChem, software that models molecular chemistry, the team found something unusual.

Not exact matches

Shiflett hired one of his colleagues from DuPont, David Corbin, a world expert in porous materials called zeolites, to provide guidance on the selection of materials the researchers are testing.

Zeolites are minerals that are either found in nature or produced synthetically on an industrial scale.

As demand for green products grew, some producers switched to an aluminium - based material called zeolite A. Zeolites soften water, but can not maintain pH or prevent dirt from resettling on clothes, so a «co-builder» called polycarboxylic acid (PCA) had to be added.

By placing a very sharp conductive needle, of an atomic force microscope (AFM), on top of a zeolite crystal, the researchers were able to measure the electrical conductivity in the molecule chains.

The zeolite crystals containing the molecular wires were then placed on an electricity - conductive substrate.

The 2D analogue material has the same chemical composition and active site as the 3D porous zeolite but its active site is exposed on a flat surface, which is easier to access with such tools.

While their main goal going forward will be to continue investigating zeolite catalytic processes on the 2D material, the scientists are interested in learning the impact of different pore sizes on the materials» ability to trap and filter gas molecules.

«Characterization of Dispersed Heteropoly Acid on Mesoporous Zeolite Using Solid - State 31P NMR Spin - Lattice Relaxation.»

Their first step was to synthesize zeolite samples riddled with defects, not on the surface, but inside the sample.

However, something else must be going on because researchers can make the older zeolites work faster by adding nitrogen dioxide — but Cu - SSZ - 13 doesn't respond in the same way.

Dr. Peden has written or contributed to more than 160 peer - reviewed scientific publications on the kinetics and mechanisms of automobile exhaust catalysis; the development of zeolite catalysts for diesel engine emission control; hydrocarbon reforming over bimetallic catalysts; the structure of hydroprocessing catalysts; the development of novel, supported solid acid catalysts for petroleum refining; the growth and properties of oxide and semiconductor thin films; and model studies of adhesion at metal / metal - oxide interfaces.

2013 «A Common Intermediate for N2 Formation in Enzymes and Zeolites: Side - On Cu - Nitrosyl Complexes.»

Because removing oxygen is crucial for biofuel production, the team focused on how water interferes with two oxygen - removal paths driven by a zeolite catalyst.

His interests are related to catalysis in zeolites as well as on nanostructured oxides and sulfides, focusing on bifunctional and concerted catalysis, as well as understanding the influence of the steric and chemical environment on the properties of active centers in a catalytic site.

Then I slowed down on that and added zeolites.

Depending on the manufacturer, some instruct you to layer the Zeolite with the litter.

Kinetic and Thermodynamic Study of Arsenic (V) Adsorption on P and W Aluminum Functionalized Zeolites and Its Regeneration