Current Zeolite News and Events

Current Zeolite News and Events, Zeolite News Articles.
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Locked MOFs are the key to high porosity
Sophisticated geometry design gives rise to a new form of crystalline material. (2021-02-18)

Researchers regenerate deactivated catalyst in methanol-to-olefins process
Researchers from DICP regenerated deactivated catalyst in industrially important methanol-to-olefins (MTO) process by directly transforming the coke deposited on the zeolite catalyst to active intermediates rather than burning off to carbon oxide. (2021-01-04)

Thinking outside the cage
A reverse form of host-guest chemistry could upend the way the chemical industry approaches challenging, energy-intensive molecular separations. (2020-11-30)

Ancient Maya built sophisticated water filters
Ancient Maya in the once-bustling city of Tikal built sophisticated water filters using natural materials they imported from miles away, according to the University of Cincinnati. A multidisciplinary team of UC anthropologists, geographers and biologists identified quartz and zeolite, a crystalline compound consisting of silicon and aluminum, that created a natural molecular sieve. Both minerals are used in modern water filtration. (2020-10-22)

Solar-powered system extracts drinkable water from "dry" air
Researchers at MIT and elsewhere have significantly boosted the output from a system that can extract drinkable water directly from the air even in dry regions, using heat from the sun or another source. (2020-10-14)

Cement, salt and water: From Politecnico di Torino a new material toward green heat
A study carried out from the Turin university in collaboration with the Advanced Energy Technology Institute CNR-ITAE and published on the journal Scientific Reports, suggest a low cost technology to store heat during the summer and use it during the winter, thus saving in fossil fuels. (2020-10-08)

Lego-like assembly of zeolitic membranes improves carbon capture
EPFL chemical engineers have developed a new way to manufacture zeolitic membranes, state-of-the-art materials used for gas separation in harsh conditions. (2020-10-05)

Better catalysts for a sustainable bioeconomy
Researchers at the Paul Scherrer Institute PSI and from ETH Zurich want to make so-called zeolites more efficient. Today, these compounds are already indispensable additives in the chemical industry and have been used as catalysts in oil refineries since the 1960s. Now, in the journal Nature Materials, the researchers advocate paying more attention to the classic zeolites. These, they assert, would even have the potential to make a bioeconomy based on renewable resources possible. (2020-09-21)

Rationally designing hierarchical zeolites for better diffusion and catalyst efficiency
Alleviating diffusion limitation and enhancement of catalyst effectiveness are urgent problems in zeolite-based catalytic reaction engineering. Rationally design of interconnected hierarchical structures enhances catalyst efficiency by improving diffusion of reaction species in the bulk and accessibility to catalyst active centers. Scientists from China and France summarized the latest advances on the diffusion and catalyst efficiency of zeolite catalysts containing hierarchical porous architecture, with emphasis on pore interconnectivity in pure zeolitic and multi-component industrial catalyst levels. (2020-09-10)

Detecting soil-surface ozone early can help prevent damage to grapes and apples
Farmers and fruit growers report that climate change is leading to increased ozone concentrations on the soil surface in their fields and orchards, which can cause irreversible plant damage, reduce crop yields and threaten the food supply. Trisha Andrew and colleagues at UMass Amherst, writing in Science Advances, show that her lab's method of vapor-depositing conducting polymer ''tattoos'' on plant leaves can accurately detect and measure such ozone damage, even at low exposure levels. (2020-09-08)

Making more of methane
Looking closely at the chemical process that transforms methane into useful products could help unveil more efficient ways to use natural gas. (2020-09-02)

Breaking molecular traffic jams with finned nanoporous materials
Researchers at the University of Houston are reporting the invention of a new class of porous catalysts that will speed up reactions, breaking the molecular traffic jam that can slow them down. The discovery has immediate relevance to industry for a host of applications, including the production of fuels, chemicals for plastics and polymers, and reactions that make molecules for food, medicine and personal care products. (2020-08-10)

Nano-sponges of solid acid transform carbon dioxide to fuel and plastic waste to chemicals
The primary cause of climate change is atmospheric CO2, whose levels are rising every day. There is, therefore, a great need to find ways to reduce CO2 levels. On other hand, an excessive amount of plastic waste has become a serious environmental problem. In this work, researchers dealt with both these problems at one stroke, by developing nano solid acids which transform CO2 directly to fuel (dimethyl ether) and plastic waste to chemicals (hydrocarbons). (2020-07-31)

Efficient indium oxide catalysts designed for CO2 hydrogenation to methanol
A team jointly led by Profs.SUN Yuhan, GAO Peng, and LI Shenggang at the Shanghai Advanced Research Institute (SARI) of the Chinese Academy of Sciences reported a successful case of theory-guided rational design of indium oxide (In2O3) catalysts for CO2 hydrogenation to methanol with high activity and selectivity. (2020-06-17)

Research brief: Atomic-scale imaging reveals secret to thin film strength
An international team of scientists and engineers have made a discovery that could further advance the use of ultra-thin zeolite nanosheets, which are used as specialized molecular filters. The discovery could improve efficiency in the production of gasoline, plastics, and biofuels. (2020-03-03)

Water-conducting membrane allows carbon dioxide to transform into fuel more efficiently
Methanol is a versatile and efficient chemical used as fuel in the production of countless products. Carbon dioxide (CO2), on the other hand, is a greenhouse gas that is the unwanted byproduct of many industrial processes. Converting CO2 to methanol is one way to put CO2 to good use. In research published Thursday in Science, chemical engineers from Rensselaer Polytechnic Institute demonstrated how to make that conversion process from CO2 to methanol more efficient by using a highly effective separation membrane they produced. (2020-02-06)

Researchers discover new building blocks of catalyst zeolite nanopores
Zeolites crystals, used among other things for refining petroleum to gasoline and biomass into biofuels, are the most-used catalysts by weight on the planet, and discovering mechanisms of how they form has been of intense interest to the chemical industry and related researchers, say chemist Scott Auerbach et al. at UMass Amherst. They hope their advance on a new way to understand zeolite structure and vibrations leads to new, tailor-made zeolites for use in sophisticated new applications. (2020-01-09)

Neutrons optimize high efficiency catalyst for greener approach to biofuel synthesis
Researchers led by the University of Manchester used neutron scattering at Oak Ridge National Laboratory in the development of a catalyst that converts biomass into liquid fuel with remarkably high efficiency and provides new possibilities for manufacturing renewable energy-related materials. (2019-12-16)

Scrubbing carbon dioxide from smokestacks for cleaner industrial emissions
An international collaboration co-led by an Oregon State University chemistry researcher has uncovered a better way to scrub carbon dioxide from smokestack emissions, which could be a key to mitigating global climate change. (2019-12-11)

A sustainable new material for carbon dioxide capture
In a joint research study from Sweden, scientists from Chalmers University of Technology and Stockholm University have developed a new material for capturing carbon dioxide. The new material offers many benefits -- it is sustainable, has a high capture rate, and has low operating costs. The research has been published in the journal ACS Applied Materials & Interfaces. (2019-12-09)

A new mathematical approach to understanding zeolites
A system developed at MIT helps to identify zeolites that can readily transform into other zeolite forms, which are widely used as catalysts in industrial processes. (2019-10-07)

Asbestosis toxicity study identifies potential of novel mineral treatment
Scientists investigating the ability of a micronized mineral compound to counteract the carcinogenic effects of mesothelioma and asbestosis, say results from both cell culture and animal model studies are very promising, warranting further investigation, including the commencement of clinical trials. (2019-08-06)

Creating new molecular sieves
Molecular sieves are useful in many industrial processes, especially in the chemical and energy sectors. They could be used to remove contaminants from water and have received attention for potential applications in aerospace, rail transportation, automobile manufacturing and more, but so far, their applications have been limited by their instability under extreme conditions. (2019-06-06)

Counter-intuitive climate change solution
A seemingly counterintuitive approach -- converting one greenhouse gas into another -- holds promise for returning the atmosphere to pre-industrial concentrations of methane, a powerful driver of global warming. (2019-05-20)

Chemists of TU Dresden develop highly porous material, more precious than diamonds
Researchers of the TU Dresden's Faculty of Chemistry broke a world record: DUT-60 is a new crystalline framework with the world's highest specific surface and the highest specific pore volume (5.02 cm3g-1) measured so far among all known crystalline framework materials (2018-10-01)

Methane to syngas catalyst: two for the price of one
An improvement to the catalyst that converts methane to syngas could lead to a more economical process. (2018-09-04)

Scientists discover why silver clusters emit light
Clusters of silver atoms captured in zeolites, a porous material with small channels and voids, have remarkable light emitting properties. They can be used for more efficient lighting applications as a substitute for LED and TL lamps. Until recently, scientists did not know exactly how and why these small particles emit light. An interdisciplinary team of physicists and chemists led by KU Leuven has now demonstrated for the first time where these properties originate.  (2018-08-16)

Long-sought carbon structure joins graphene, fullerene family
Scientists have been playing with pure carbon compounds for centuries, starting with diamond and graphite and now with fullerenes, nanotubes and graphene. One type of 3D geometry has been missing, however: a negatively curved carbon-cage surface called schwarzite. UC Berkeley chemists have now shown that serendipitously produced materials called zeolite-templated carbons are in fact the long-sought schwarzites. Their recipe for making schwarzites could make them practical in electronics and gas storage. (2018-08-13)

A computational method for designing a new type of 2D carbons
Scientists from EPFL and Berkeley have developed a computational method for designing a new type of two-dimensional carbon materials called Schwarzites. (2018-08-13)

Minerology on Mars points to a cold and icy ancient climate
The climate throughout Mars' early history has long been debated -- was the Red Planet warm and wet, or cold and icy? New research published in Icarus provides evidence for the latter. (2018-06-07)

Smoked foods are tastier, less harmful with a tip from the auto industry
Infusing foods with smoke can impart delicious nuanced flavors, but could also come with an unwelcome side of carcinogens. To reduce the carcinogen content of smoked foods, researchers took a lesson from the automobile industry, running the smoke through a zeolite filter to remove harmful compounds. It worked, and with a happy bonus: superior smoke flavor. The researchers will present their results today at the 255th National Meeting & Exposition of the American Chemical Society. (2018-03-20)

New synthethic protocol to form 3-D porous organic network
A team of Korean researchers, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has presented a new synthetic protocol to produce three-dimensional porous organic materials in the blink of an eye, like firing bullets. (2017-11-29)

Ultra-fast and ultra-sensitive hydrogen sensor
A KAIST team made an ultra-fast hydrogen sensor that can detect hydrogen gas levels under 1 percent in less than seven seconds. The sensor also can detect hundreds of parts per million levels of hydrogen gas within 60 seconds at room temperature. (2017-09-28)

State-of-the-art synthesis of SAPO-34 zeolites catalysts for methanol-to-olefin conversion
Methanol-to-olefin (MTO) conversion has proven to be one of the most successful non-petrochemical routes for producing light olefins. Silicoaluminophosphate zeolite SAPO-34 is one of the best industrial catalysts for MTO conversion, but suffers from rapid deactivation. To improve the MTO performance, considerable synthetic efforts have been devoted to decrease the catalyst size or fabricate hierarchical catalysts. Scientists from China summarize the state-of-the-art synthetic strategies for nanosized and hierarchical SAPO-34 catalysts, and outline future development directions. (2017-09-20)

Aeroices: Newly discovered ultralow-density ice
Relatively little is known about the effects of extreme negative pressure on water molecules. Exploring a significant region of negative pressure through molecular dynamic simulations, researchers have now theoretically discovered a new family of ice phases. Called aeroices, these ices have the lowest density of all known ice crystals. The researchers report their findings this week in The Journal of Chemical Physics. (2017-09-05)

Researchers discover new chemical process that could reduce nitrogen oxides from diesel exhaust
Chemical engineers at the University of Notre Dame have discovered a catalytic process that could help curb emissions of nitrogen oxides from diesel-powered vehicles, a priority air pollutant that is a key ingredient in smog. (2017-08-18)

Discovery could lead to new catalyst design to reduce nitrogen oxides in diesel exhaust
Researchers have discovered a new reaction mechanism that could be used to improve catalyst designs for pollution control systems to further reduce emissions of smog-causing nitrogen oxides in diesel exhaust. (2017-08-17)

Studying argon gas trapped in two-dimensional array of tiny 'cages'
For the first time, scientists have trapped a noble gas in a two-dimensional porous structure at room temperature. This achievement will enable detailed studies of individual gas atoms in confinement -- research that could inform the design of new materials for gas separation and nuclear waste remediation. (2017-07-17)

Bio-fuel from waste
Fuel from waste? It is possible. But hitherto, converting organic waste to fuel has not been economically viable. Excessively high temperatures and too much energy are required. Using a novel catalyst concept, researchers at the Technical University of Munich (TUM) have now managed to significantly reduce the temperature and energy requirements of a key step in the chemical process. The trick: The reaction takes place in very confined spaces inside zeolite crystals. (2017-06-28)

Metal-ion catalysts and hydrogen peroxide could green up plastics production
Researchers at the University of Illinois are contributing to the development of more environmentally friendly catalysts for the production of plastic and resin precursors that are often derived from fossil fuels. The key to their technique comes from recognizing the unique physical and chemical properties of certain metals and how they react with hydrogen peroxide. (2017-06-05)

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