Search results for zeolite

Biotechnology Oct 17, 2023

Agronomists protect plants from heavy metals with hormone therapy and the mineral zeolite

RUDN University agronomists have shown that the hormone melatonin and the mineral zeolite mitigate the dangerous effects of heavy metals on plants. The first protects cells from destruction by cadmium, and the second increases ...

Analytical Chemistry Oct 11, 2023

Metal-free and transition-metal-doped ZIF-8@CNT catalysts prepared by one-step high-temperature pyrolysis

Non-precious metal catalysts (NPMC) have strong potential in energy conversion devices due to their excellent oxygen reduction reaction (ORR) performance in fuel cells. Since in most NPMC materials, the accessible active ...

Earth Sciences Oct 9, 2023

Ancient Maya reservoirs offer lessons for today's water crises

According to a new paper, ancient Maya reservoirs, which used aquatic plants to filter and clean the water, "can serve as archetypes for natural, sustainable water systems to address future water needs."

Analytical Chemistry Oct 2, 2023

Ancient architecture inspires a new way to work with metal-organic frameworks

A centuries-old technique for constructing arched stone windows has inspired a new way to form tailored nanoscale windows in porous functional materials called metal-organic frameworks (MOFs).

Analytical Chemistry Sep 27, 2023

Team examines importance of zeolite in catalysts for syngas conversion

The fuels used today depend heavily on petroleum. As the demand grows, scientists are looking for ways to produce fuels that do not require petroleum. A research team set out to examine the role of zeolites in the conversion ...

Analytical Chemistry Sep 25, 2023

Iron-based molecular switch improves reaction yield by modulating zeolite catalyst acidity

A molecular switch, or molecule that changes in response to varying environmental stimuli, has successfully modified the acidity of a zeolite catalyst to improve the yield of paraxylene from methanol in heterogeneous catalysis, ...

Materials Science Sep 21, 2023

Ultrathin films achieve record hydrogen-nitrogen separation

Metal-organic frameworks (MOFs) are a class of materials that contain nano-sized pores. These pores give MOFs record-breaking internal surface areas, which make them extremely versatile for a number of applications: separating ...

Analytical Chemistry Sep 20, 2023

How do zeolite-encapsulated metal catalysts act on hydrogen-related catalytic reactions?

Zeolites encapsulated metal and metal oxide species (regarded as metal@zeolite) are an important type of heterogeneous catalyst. They give performances that steadily outperform the traditional supported catalysts in many ...

Polymers Sep 8, 2023

Using lignin and a catalyst to create an alternative to bisphenol A (BPA)

A team of microbiologists and chemists at the Center for Sustainable Catalysis and Engineering, working with colleagues from Vrije Universiteit Brussel, the Flemish Institute for Technological Research and Rheology and Technology ...

Polymers Aug 25, 2023

Thesis: Non-toxic solvents provide greener production of artificial membranes

Artificial membranes play a vital role in health care, energy storage and resource recovery. However, the fabrication is not environmentally friendly. In a thesis from UmeƄ University, Norafiqah Ismail in the Department ...

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