Search results for zeolite

Analytical Chemistry Feb 17, 2023

Accelerating molecular diffusion by constructing hierarchical Murray zeolites for maximized catalytic activity

Introducing interconnected mesopores and macropores into microporous zeolites with the rationalized pore size at each level is an effective strategy to suppress the diffusion limitations, but remains highly challenging due ...

Analytical Chemistry Feb 13, 2023

Researchers reveal mechanism regulating rhodium migration and size redistribution in rhodium catalysts

The migration of Rh atoms under a gas/reactive environment is important for the dynamic restructuring and size redistribution of Rh catalysts in a variety of structure-sensitive catalytic reactions.

Materials Science Jan 19, 2023

Researchers create a new 3D extra-large pore zeolite that opens a new path to the decontamination of water and gas

An international team of researchers, with the participation of the Spanish National Research Council (CSIC), has created the most porous stable zeolite known to date, a new pure silica zeolite called ZEO-3. This zeolite ...

Polymers Jan 19, 2023

Effective and reusable tandem catalyst developed for plastic waste conversion

The rapid growth of plastic waste is an ever-growing environmental and energy challenge. Selectively converting waste plastics to naphtha, a main feedstock for ethylene and the plastic industry, shows high potential to partially ...

Analytical Chemistry Jan 12, 2023

Researchers construct macroporous structure for single-atom catalysts

Single-atom catalysts are prized because of the way they maximize the use of active sites and because they have easy tunability. However, in most conventional single-atom catalysts, the active sites are buried in the thick ...

Analytical Chemistry Jan 11, 2023

Discovery of a new form of carbon called long-range ordered porous carbon

The most well-known forms of carbon include graphite and diamond, but there are other more exotic nanoscale allotropes of carbon as well. These include graphene and fullerenes, which are sp2 hybridized carbon with zero (flat-shaped) ...

Materials Science Jan 11, 2023

Toward 'green' ammonia and a 'greener' fertilizer: New MOFs use less energy to separate ammonia from chemical reactants

Industrial production of ammonia, primarily for synthetic fertilizer—the fuel for last century's Green Revolution—is one of the world's largest chemical markets, but also one of the most energy intensive.

Polymers Jan 9, 2023

Chemical researchers discover catalyst to make renewable paints, coatings, and diapers

A team led by University of Minnesota Twin Cities researchers has invented a groundbreaking new catalyst technology that converts renewable materials like trees and corn to the key chemicals, acrylic acid, and acrylates used ...

Nanomaterials Dec 14, 2022

Development of new zeolitic catalyst shows the great importance of small dimensions

Dr. Michal Mazur and his colleagues from the Faculty of Science, Charles University in Prague study catalysts that are based on metal nanoparticles stabilized at zeolites. Recently, they have prepared a new type of zeolitic ...

Analytical Chemistry Nov 1, 2022

Clean hydrogen fuel is easier to produce from seawater with stable hierarchical electrocatalysts

Seawater, which comprises more than 95% of the Earth's water, could become a key resource in the sustainable production of clean hydrogen fuel with use of water-splitting catalysts developed by a KAUST-led team.

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