Current Palladium News and Events | Page 8

Current Palladium News and Events, Palladium News Articles.
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New visible light photocatalyst kills bacteria, even after light turned off
In the battle against bacteria, researchers at the University of Illinois have developed a powerful new weapon -- an enhanced photocatalytic disinfection process that uses visible light to destroy harmful bacteria and viruses, even in the dark. (2010-01-19)

Superatoms mimic elements: Research gives new perspective on periodic table
Research at Penn State has shown that certain combinations of elemental atoms have electronic signatures that mimic the electronic signatures of other elements. The findings could lead to much cheaper materials for widespread applications such as new sources of energy, methods of pollution abatement, and catalysts on which industrial nations depend heavily for chemical processing. (2009-12-28)

How size matters for catalysts
University of Utah chemists demonstrated the first conclusive link between the size of catalyst particles on a solid surface, their electronic properties and their ability to speed chemical reactions. The study is a step toward the goal of designing cheaper, more efficient catalysts to increase energy production, reduce Earth-warming gases and manufacture a wide variety of goods from medicines to gasoline. (2009-11-05)

Platinum nanocatalyst could aid drugmakers
Nanoparticles combining platinum and gold act as superefficient catalysts, but chemists have struggled to create them in an industrially useful form. In the Sept. 1 issue of the German scientific journal Angewandte Chemie, Rice University chemists report making a plastic-coated gold-platinum nanorod that can be used in the organic solvents favored by chemical and drug manufacturers. Tests reveal that the polymer-functionalized particles have nearly 100 percent catalytic selectivity for the hydrogenation of terminal olefins. (2009-08-31)

New chemical synthesis could streamline drug design
A team of MIT chemists has devised a new way to add fluorine to a variety of compounds used in many drugs and agricultural chemicals, an advance that could offer more flexibility and potential cost-savings in designing new drugs. (2009-08-13)

NTU professor discovers method to efficiently produce less toxic drugs using organic molecules
Professor Zhong Guofu, from NTU's School of Physical and Mathematical Sciences, has successfully created the first study where an organocatalyst is able to be (2009-07-08)

Caltech scientists use high-pressure 'alchemy' to create nonexpanding metals
By squeezing a typical metal alloy at pressures hundreds of thousands of times greater than normal atmospheric pressure, scientists at the California Institute of Technology have created a material that does not expand when heated, as does nearly every normal metal, and acts like a metal with an entirely different chemical composition. (2009-06-15)

New fuel cell catalyst uses 2 metals
Material scientists at Washington University in St. Louis have developed a technique for a bimetallic fuel cell catalyst that is efficient, robust and two to five times more effective than commercial catalysts. The novel technique eventually will enable a cost effective fuel cell technology, which has been waiting in the wings for decades, and should give a boost for cleaner use of fuels worldwide. (2009-05-14)

Biomass as a source of raw materials
A team of German and Chinese scientists led by Johannes A. Lercher has developed a new catalytic process to convert components of bio-oil directly into alkanes and methanol. (2009-05-12)

University of Toronto chemists uncover green catalysts
A University of Toronto research team has discovered useful green catalysts made from iron that might replace the much more expensive and toxic platinum metals typically used in industrial chemical processes to produce drugs, flavors and fragrances. (2009-04-13)

Brown chemists create more efficient palladium fuel cell catalysts
Two Brown University chemists have overcome a challenge to fuel cell reactions using palladium catalysts. The scientists produced palladium nanoparticles with about 40 percent greater active surface area than commercially available palladium particles, and the nanoparticles remain intact four times longer. Results appear in the online edition of the Journal of the American Chemical Society. (2009-03-19)

Gold-palladium nanoparticles achieve greener, smarter production of hydrogen peroxide
A team of chemists and engineers from the US and the UK, writing in Science magazine, reports a breakthrough in the decades-long effort to produce H2O2 directly from oxygen and hydrogen and to limit its decomposition after production. A gold-palladium catalyst, placed on a carbon support pretreated with nitric acid, will make it possible to produce H2O2 on-site, eliminating the need for storage and transport, which can be hazardous. (2009-02-19)

Carbon nanotube avalanche process nearly doubles current
By pushing carbon nanotubes close to their breaking point, researchers at the University of Illinois have demonstrated a remarkable increase in the current-carrying capacity of the nanotubes, well beyond what was previously thought possible. (2009-02-09)

Nano-tetherball biosensor precisely detects glucose
Researchers have created a precise biosensor for detecting blood glucose and potentially many other biological molecules by using hollow structures called single-wall carbon nanotubes anchored to gold-coated (2009-01-22)

Researchers shed new light on catalyzed reactions
Rice University scientists searching for a better way to clean up the stubborn pollutant TCE have found a new way to watch the molecules break apart as individual chemical bonds are formed and broken. Researcher Michael Wong says, (2008-11-19)

Test identifies toxic platinum and palladium without time-consuming sample pretreatment
The painstaking process of detecting toxic species of platinum and palladium mixed in with the form of platinum essential to certain pharmaceuticals could be reduced to one simple step, University of Pittsburgh researchers report in the Nov. 14 online edition of the Journal of the American Chemical Society. (2008-11-14)

A green future for scrap iron
In a five-year project that progressed from benchtop to pilot to full-scale tests, engineers from Lehigh University in Bethlehem, Pa., and Tongji University in Shanghai showed that the biological treatment of industrial wastewater can be dramatically enhanced by pretreating the waste with non-oxidized iron. The group's full-scale test at a treatment facility in Shanghai's Taopu Industrial District was the largest in history to use iron in an environmental application. (2008-11-03)

Secret lives of catalysts revealed
The first-ever glimpse of nanoscale catalysts in action could lead to improved pollution control and fuel cell technologies. Berkeley Lab scientists have observed catalysts restructuring themselves in response to various gases swirling around them, like a chameleon changing its color to match its surroundings. (2008-10-21)

Diamonds are forever revealing new insights into Earth's development
Diamonds will take center stage this month in countless wedding ceremonies and other celebrations. In addition to their usual role as symbols of enduring love and fidelity, diamonds are now also helping geologists unravel clues about how the Earth's precious metal mineralization was formed and why diamonds and some of these metals are found in only a few places around the world. (2008-06-12)

Diamonds reveal deep source of platinum deposits
The world's richest source of platinum and related metals is an enigmatic geological structure in South Africa known as the Bushveld Complex. The source of its metallic riches has long been a matter of scientific dispute. Now researchers from the Carnegie Institution and the University of Cape Town have traced the origin of the unique ore deposits by using another of South Africa's treasures -- diamonds. (2008-06-11)

FSU geochemist challenges key theory regarding Earth's formation
Working with colleagues from NASA, a Florida State University researcher has published a paper that calls into question three decades of conventional wisdom regarding some of the physical processes that helped shape the Earth as we know it today. (2008-05-01)

Can certain metals repel sharks from fishing gear?
Sharks in captivity avoid metals that react with seawater to produce an electric field, a behavior that may help fishery biologists develop a strategy to reduce the bycatch of sharks in longline gear. Shark bycatch is an increasing priority worldwide given diminished populations of many shark species, and because sharks compete with target species for baited lines, reducing fishing efficiency and increasing operating costs. (2008-04-22)

Palladium and platinum an easier find with Pitt researcher's detection method
Multipurpose metal used in cars, medicine and alternative energy production detected in one hour, researcher explains in the Journal of the American Chemical Society. (2007-09-22)

Nanotechnology helps scientists make bendy sensors for hydrogen vehicles
Recently, scientists at the US Department of Energy's Argonne National Laboratory have used their insights into nanomaterials to create bendy hydrogen sensors, which are at the heart of hydrogen fuel cells used in hydrogen vehicles. (2007-07-31)

Technique monitors thousands of molecules simultaneously
A chemist at Washington University in St. Louis is making molecules the new-fashioned way -- selectively harnessing thousands of minuscule electrodes on a tiny computer chip that do chemical reactions and yield molecules that bind to receptor sites. Kevin Moeller, Ph.D., Washington University professor of chemistry in Arts & Sciences, is doing this so that the electrodes on the chip can be used to monitor the biological behavior of up to 12,000 molecules at the same time. (2007-05-02)

Ames Laboratory researchers rethink zinc
While they can't turn lead into gold, researchers at US Department of Energy's Ames Laboratory have discovered a new family of zinc compounds that can be tuned, or manipulated, to take on some of the physical properties and behavior of other materials. (2007-04-17)

Removing a hydrogen fuel-cell roadblock
Researchers at Ames Laboratory are looking for a substitute for the precious metal palladium that can filter hydrogen gas for use in commercial scale hydrogen fuel-cell technology. (2007-03-26)

New metal crystals, formed on a cotton assembly line
Appropriating cellulose fibers from cotton and crystallizing them, scientists at Pacific Northwest National Laboratory in Richland, Wash., have grown never-before-seen configurations of metal crystals that show promise as components in biosensors, biological imaging, drug delivery and catalytic converters. (2007-03-26)

Peanut-shaped nanostructures
Tiny acorns that fuse together in pairs to form miniature peanuts -- Japanese researchers have succeeded in producing peanut-shaped nanoparticles comprised of two different sulfur-containing substances. The ends of the (2007-02-22)

Improved nanodots could be key to future data storage
The massive global challenge of storing digital data -- storage needs reportedly double every year -- may be met with a tiny yet powerful solution: magnetic particles just a few billionths of a meter across. This idea is looking better than ever now that NIST researchers have made nanodot arrays that respond to magnetic fields with record levels of uniformity. (2007-01-19)

National Professional Society to honor WPI professor for his work on inorganic membranes
The American Institute of Chemical Engineers will honor Yi Hua Ma, Frances B. Manning Professor of Chemical Engineering at WPI and director of the Center for Inorganic Membrane Studies, at its annual meeting on November 13 by holding two sessions on membrane-based separations in his honor. At the sessions, 12 invited presentations will build upon Ma's pioneering efforts in inorganic membranes and membrane reactors, and his fundamental studies of reactions in porous adsorbents and catalysts. (2006-11-09)

New catalyst removes harmful perchlorate from groundwater
Scientists at the University of Illinois at Urbana-Champaign have developed a new chemical catalyst that uses hydrogen gas to efficiently remove and destroy harmful perchlorate in contaminated groundwater. (2006-09-11)

'Yanking' chemical bonds with molecular wires speeds reactions
Using a chain of molecules as an infinitesimal lanyard to tug on a chemical bond about to break, Duke University chemists have found they can speed a complex chemical reaction. (2006-03-14)

Are tougher electronic components on the way?
Researchers have made two durable compounds called noble metal nitrides -- one containing iridium and another containing platinum -- using extreme temperatures and pressures. Both possess a diamond-like hardness, and some compositions might have very low, nearly superconductive electrical resistance, making these substances potentially valuable to engineers. The strength and durability of these materials could make them viable replacements for the titanium nitrides currently valued by the semiconductor industry. (2006-03-08)

The sweet smell of nano-success
Scientists at Lehigh University and Cardiff University, reporting in Science magazine, use one of the world's most powerful electron microscopes to map the chemical structure of a nanoparticle that is the active component of a new, environmentally friendly catalyst. The catalyst promotes the oxidation of primary alcohols to aldehydes, which is important to the chemical and pharmaceutical industries and to the manufacture of perfumes and flavorings. (2006-01-27)

Chemists detect toxic emissions linked to catalytic converters in US
Researchers found high concentrations of platinum, palladium, rhodium and osmium in air over the Boston metropolitan area. The study is scheduled for publication in the Dec. 15 issue of the American Chemical Society's journal, Environmental Science and Technology. (2005-12-05)

A first: Hydrogen atoms manipulated below the surface of a palladium crystal
For the first time, scientists have manipulated hydrogen atoms into stable sites beneath the surface of a palladium crystal, creating a structure predicted to be important in metal catalysts, in hydrogen storage, and in fuel cells. (2005-12-02)

Rice scientists build world's first single-molecule car
Rice University scientists have constructed the world's smallest working car -- a single molecule (2005-10-20)

Cleaning with catalysts
On repeated occasions we have read that volatile organic compounds are danaging for the atmosphere and to our health. This is why a group of researchers at the Leioa campus of the University of the Basque Country have put forward a process for (2005-10-17)

UCR chemists prepare molecules that accelerate chemical reactions for manufacturing drugs
Chemists at the University of California, Riverside have synthesized a new class of carbenes - molecules that have unusual carbon atoms - that is expected to have wide applications in the pharmaceutical industry, ultimately resulting in a reduction in the price of drugs. Called cyclic alkyl amino carbenes, the molecules attach themselves to metals, such as palladium, to form highly efficient catalysts that allow chemical transformations otherwise considered impossible. (2005-08-18)

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