Popular Palladium News and Current Events

Popular Palladium News and Current Events, Palladium News Articles.
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Gold recycling
'Urban mining', the recycling of precious metals from electronic gadgets, becomes ever more important, although processes that are both efficient and environmentally benign are still scarce. An international team of scientists has now looked deeper into gold dissolution, in particular, how organic thiol-containing compounds help dissolve elemental gold. Their study published in the journal Angewandte Chemie proposes selective, fast, and convenient thiol-assisted gold leaching processes. (2018-12-13)

New Pd-based initiating systems for C1 polymerization of diazoacetates
Two new Pd-based initiating systems for C1 polymerization of diazoacetates were reported: Pd(nq)2/borate (nq = naphthoquinone, borate = NaBPh4) and [Pd(cod)(Cl-nq)Cl/borate] [cod = 1,5-cyclooctadiene, Cl-nq = 2,3-dichloro-1,4-naphthoquinone]. The former exhibited high activity, affording poly(alkoxycarbonylmethylene)s with high molecular weights in high yields. The latter was effective for controlling the stereostructure of the resulting polymers. (2019-10-23)

A fast reactor system to shorten the lifetime of long-lived fission products
Researchers in Japan have proposed a more efficient method to reduce radioactive waste. The study involves converting radioactive material into short-lived nuclides by absorbing surplus neutrons in the core peripheral portion of a small fast reactor faster than they are generated in the core, thus providing an effective way to lessen the burden of nuclear waste on future generations. (2017-11-14)

Project will provide reaction kinetics data for synthesis of metallic nanocrystals
Researchers have published the first part of what they expect to be a database showing the kinetics involved in producing colloidal metal nanocrystals -- which are suitable for catalytic, biomedical, photonic and electronic applications -- through an autocatalytic mechanism. (2017-12-27)

Uranium to replace plastic? Chemistry breakthrough could pave the way for new materials
Uranium can perform reactions that previously no one thought possible, which could transform the way industry makes bulk chemicals, polymers, and the precursors to new drugs and plastics, according to new findings from The University of Manchester. (2017-12-01)

New evidence on the formation of the solar system
International research involving a Monash University scientist is using new computer models and evidence from meteorites to show that a low-mass supernova triggered the formation of our solar system. (2016-12-01)

Efficient, eco-friendly production of fine chemicals
Chemical engineers from ETH Zurich developed a new catalyst for forming a bond between two carbon atoms in a cost-effective and eco-friendly way. This technology could soon make its way into industry. (2018-06-25)

Nanoscale alloys from elements thought to be incapable of mixing
A multi-institutional team of scientists describes a new technique that can meld ions from up to eight different elements to form what are known as high entropy alloyed nanoparticles. The atoms of the elements that make up these particles are distributed evenly throughout and form a single, solid-state crystalline structure -- a feat that has never been achieved before with more than three elements. The nanoparticles could have broad applications as catalysts. (2018-03-29)

Nanoscale islands dot light-driven catalyst
Rice University scientists have combined aluminum nanoparticles and smaller metal particles to create a versatile nanostructure that could lead to new applications for plasmonics. The Rice technique allows for customizable surface chemistry and reactivity in one material. (2017-10-04)

Better chemistry through...chemistry
Award-winning UCSB professor Bruce Lipshutz is out to make organic chemistry better for the planet (2016-09-08)

Volatility surprises arise in removing excess hydrogen
Sometimes during catalytic hydrogenation, the partially hydrogenated products become volatile, melting and evaporating away before they can bind to more hydrogen atoms. Now, researchers have explored how and why this volatility varies during hydrogenation, suggesting that a previously underappreciated effect from carbon-hydrogen bonds is the main culprit. The new analysis, published in The Journal of Chemical Physics, can help chemists identify the ideal conditions needed for catalytic hydrogenation so they can better remove excess hydrogen. (2017-11-15)

A green approach to making ammonia could help feed the world
A UCF research team with collaborators at Virginia Tech have developed a new 'green' approach to making ammonia that may help make feeding the rising world population more sustainable. (2018-05-15)

Scientists watch 'artificial atoms' assemble into perfect lattices with many uses
Some of the world's tiniest crystals are known as 'artificial atoms' because they can organize themselves into structures that look like molecules, including 'superlattices' that are potential building blocks for novel materials. Now scientists from the Department of Energy's SLAC National Accelerator Laboratory and Stanford University have made the first observation of these nanocrystals rapidly forming superlattices while they are themselves still growing. (2017-07-31)

Atomic 're-packing' behind metallic glass mystery
A new method uncovers a four-decade mystery about metallic glass that could allow researchers to fine-tune its properties to develop new materials. (2017-03-29)

Custom sequences for polymers using visible light
Researchers from Tokyo Metropolitan University used a light-sensitive iridium-palladium catalyst to make 'sequential' polymers, using visible light to change how different building blocks are combined into polymer chains. By simply switching the light on or off, they were able to realize different compositions along the polymer chain, allowing precision control over physical properties and material function. This may drastically simplify existing polymer production methods, and help overcome fundamental limits in creating new polymers. (2018-03-22)

Rice U.'s one-step catalyst turns nitrates into water and air
Engineers at Rice University's Nanotechnology Enabled Water Treatment (NEWT) Center have found a catalyst the cleans toxic nitrates from drinking water by converting them into air and water. (2018-01-04)

New catalysts mimic human vision
Light sensitive molecules trigger vision inside our retinas. This phenomenon inspired ICIQ researchers to create a new family of eco-friendly catalysts activated by purple LEDs for unprecedented transformations. (2017-03-20)

Supercomputing the 'how' of chemical reactions
Chemists from the University of Texas Rio Grande Valley used supercomputers at the Texas Advanced Computing Center to explore the molecular structure of a class of organometallic compounds. Writing in the journal Computational and Theoretical Chemistry, they simulated the mechanics of a palladium catalyst in order to understand its exceptional selectivity. Results of this research can be used to guide the synthesis of new and improved variants of this important catalyst family. (2018-07-30)

Researchers reduce expensive noble metals for fuel cell reactions
Washington State University researchers have developed a novel nanomaterial that could improve the performance and lower the costs of fuel cells by using fewer precious metals like platinum or palladium. (2016-08-22)

Exploration of a new chemical synthesis process -- synergy of two catalysts in one flask
Development of a general and simple reaction by an organocatalyst and a transition-metal catalyst in cooperation is highly desirable for various organic syntheses but remains a challenge. Herein, we report the one-step synthesis of a ketone from an aldehyde by the combination of thiazolium N-heterocyclic carbene and palladium/bisphosphine catalysts in one flask. The two catalysts function in a synergistic manner. This study is expected to lead to new synthesis processes of precursor compounds for medications. (2018-03-14)

More flexible nanomaterials can make fuel cell cars cheaper
A new method of increasing the reactivity of ultrathin nanosheets, just a few atoms thick, can someday make fuel cells for hydrogen cars cheaper, finds a new Johns Hopkins study. A report of the findings, to be published Feb. 22 in Science, offers promise towards faster, cheaper production of electrical power using fuel cells, but also of bulk chemicals and materials such as hydrogen. (2019-02-21)

Reusable ruthenium-based catalyst could be a game-changer for the biomass industry
Researchers at Tokyo Institute of Technology have developed a highly efficient reusable catalyst for the production of primary amines. By cutting the amount of undesired by-products, the catalyst is set to revolutionize the production of bio-based fuels, pharmaceuticals, agricultural chemicals and more. (2017-09-01)

A new way to directly convert methane to methanol using gold-palladium nanoparticles
A collaborative team led by Graham J. Hutchings at the Cardiff Catalysis Institute, and Christopher J. Kiely at Lehigh University, have used colloidal gold-palladium (Au-Pd) nanoparticles to directly oxidize methane to methanol with high selectivity in aqueous solution at low temperatures. Their findings have been published in an article in Science today: 'Aqueous Au-Pd colloids catalyze selective CH4 oxidation to CH3OH with O2 under mild conditions.' (2017-09-07)

'Goldilocks' thinking to cut cost of fuel cells in electric vehicles
Electric vehicles running on fuel cells tout zero emissions and higher efficiency, but expensive platinum is holding them back from entering a larger market. A new method increases fuel cell electrode activity at least tenfold, using 90 percent less metal. (2019-02-21)

'Green' catalysis technique aims to boost pharmaceutical manufacturing efficiency
About 70 percent of pharmaceuticals are manufactured using palladium-driven catalytic processes that are either fast or efficient -- but not both. Researchers have now developed a green chemistry method that combines aspects of both processes to improve efficiency at a minimal cost of processing time. (2018-02-14)

Astonishing effect enables better palladium catalysts
The taste of the chocolate cake's icing should not depend on whether it is served on a porcelain or a silver plate. Similarly, for chemical reactions on the surface of large precious metal grains, the substrate (the so-called support) should not play a crucial role. Experimental studies performed at TU Wien led to surprising findings. Chemical processes on palladium grains, which are also used for exhaust gas catalysts, changed significantly when they were placed on specific support materials. (2018-05-15)

Why gold-palladium alloys are better than palladium for hydrogen storage
A research team led by The University of Tokyo investigated why alloying with gold improves hydrogen storage in palladium. The hydrogen concentration in sub-surface palladium was maximized when 0.4 monolayers of gold atoms were alloyed in the surface. DFT calculations and photoemission spectroscopy showed that gold destabilized the surface-chemisorbed hydrogen atoms, hastening their diffusion from the surface into the interior. This will aid the design of hydrogen storage materials as energy carriers and catalysts. (2018-07-09)

Chemical hot spots
Chemistry live: using a scanning tunneling microscope, researchers at the Technical University of Munich were able for the very first time to witness in detail the activity of catalysts during an electrochemical reaction. The measurements show how the surface structure of the catalysts influences their activity. The new analysis method can now be used to improve catalysts for the electrochemical industry. (2017-09-07)

New synthesis strategy for chiral drugs -- versatile chiral chemical species from aldehydes
We developed a new method of asymmetric synthesis for versatile chiral chemicals from aldehydes. A chiral hydroxycarbanion was formed from an aldehyde using a chiral copper?N-heterocyclic carbene catalyst and a palladium catalyst, which enabled subsequent synthetic processes to take place in one flask while maintaining enantioselectivity. Since many drugs exhibit chirality-dependent effectiveness, our new method should facilitate synthesis and development of pharmaceuticals and their precursors. (2019-01-09)

Nanocatalyst makes heavy work of formic acid
Osaka University researchers have reported a nanocatalyst that is able to produce hydrogen isotope compounds D2 and HD via the heterogeneous dehydrogenation of formic acid in the presence of heavy water. Amine groups on the catalyst support provided a handle for tuning the selectivity of the reaction through their basicity. It is hoped that the reported process, which is appropriate for large-scale production, can be used to improve the accessibility of deuterated materials worldwide. (2019-09-25)

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)

New chemical tools to modify and study biomolecules
EPFL chemists have developed new tools to modify sulfur-containing biomolecules, from simple amino acids to large protein complexes such as nucleosomes. These modifications then provide attachment points for two new functional groups, enabling studies of biochemical interactions on the single-molecule level. (2019-07-02)

Siberian chemists have improved hydrogen sensors
A group of scientists from the Siberian Federal University (SFU, Krasnoyarsk, Russia) and the Nikolaev Institute of Inorganic Chemistry (NIIC, Novosibirsk, Russia) combined the useful properties of metal phthalocyanines and palladium membranes in order to create active layers in hydrogen detectors. This operation significantly increases the sensitivity of the sensors. The study is reported in the journals Dyes and Pigments and International Journal of Hydrogen Energy. (2018-01-17)

On the rebound
New research from the US Department of Energy's Argonne National Laboratory and Stanford University has found that palladium nanoparticles can repair atomic dislocations in their crystal structure, potentially leading to other advances in material science. (2018-01-19)

Editorial expression of concern for paper by Gugliotti et al.
The report 'RNA-Mediated Metal-Metal Bond Formation in the Synthesis of Hexagonal Palladium Nanoparticles' by Lina A. Gugliotti et al. published online in the May 7, 2004, issue of Science reported using a complex mix of RNA and water to create crystals of palladium. (2016-01-21)

Researchers identify cheaper, greener biofuels processing catalyst
Fuels that are produced from nonpetroleum-based biological sources may become greener and more affordable, thanks to research performed at the University of Illinois' Prairie Research Institute that examines the use of a processing catalyst made from palladium metal and bacteria. (2017-08-25)

Residents near Chinese e-waste site face greater cancer risk
Residents living near an e-waste recycling site in China face elevated risks of lung cancer. (2013-01-22)

Single nanoparticle mapping paves the way for better nanotechnology
Researchers at Chalmers University of Technology and the Technical University of Denmark have developed a method that makes it possible to map the individual responses of nanoparticles in different situations and contexts. The results pave the way for better nanomaterials and safer nanotechnology and were recently published in the journal Nature Communications. (2017-10-24)

Carbon dioxide-to-methanol process improved by catalyst
Dramatic improvements have been made to the process of converting carbon dioxide, a greenhouse gas, to methanol, a fuel and building block for a wide range of everyday materials, according to Penn State researchers. (2018-06-28)

Symposium honoring UD Nobel Laureate Richard Heck set for May 26
On Thursday, May 26, the University of Delaware will host the scholarly symposium (2011-03-02)

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