Current Platinum News and Events

Current Platinum News and Events, Platinum News Articles.
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Study reveals platinum's role in clean fuel conversion
Scientists at the US Department of Energy's Brookhaven National Laboratory, Stony Brook University (SBU), and other collaborating institutions have uncovered dynamic, atomic-level details of how an important platinum-based catalyst works in the water gas shift reaction. The experiments provide definitive evidence that only certain platinum atoms play an important role in the chemical conversion, and could therefore guide the design of catalysts that use less of this precious metal. (2021-02-10)

Fighting cancer from a chair
Cisplatin has been used to treat cancer since the 1970s. Since then, many other platinum-containing cytostatic drugs have been developed, such as triplatinNC, a highly charged complex that contains three ligand-bridged platinum atoms. Unlike cisplatin, this drug also directly inhibits metastasis. The reason for this seems to be modulation of the geometry of a sugar component of heparan sulfate, an important component of the extracellular matrix, reports a research team in the journal Angewandte Chemie. (2021-01-25)

Single atoms as a catalyst: Surprising effects ensue
Catalysts are getting smaller - ''single-atom'' catalysts are the logical end point of this downsizing. However, individual atoms can no longer be described using the rules developed from larger pieces of metal, so the rules used to predict which metals will be good catalysts must be revamped - this has now been achieved at TU Wien. As it turns out, single atom catalysts based on much cheaper materials might be even more effective. (2021-01-22)

Sustainable transportation: clearing the air on nitrogen doping
Researchers from the University of Tsukuba elucidated the initial reaction pathways on the pyridinic nitrogen atoms at the armchair edges of doped carbon catalysts for the oxygen reduction reaction in proton-exchange membrane fuel cells. This will help optimize a low-carbon technology for future transportation needs. (2021-01-12)

Scientists suggested a method to improve performance of methanol fuel cells
Fuel cells based on methanol oxidation have a huge potential in the motor and technical industries. To increase their energy performance, scientists suggest using electrodes made of thin palladium-based metallic glass films. A group of researchers from Far Eastern Federal University (FEFU), Austria, Turkey, Switzerland, and the UK has developed a new metallic glass for this application. The results were reported in the Nanoscale journal. (2020-12-22)

Silver linings: Adding silver to the nanoclusters can do wonders for their luminescence
Scientists at Tokyo Institute of Technology have discovered that a silver-doped platinum thiolate nanometal complex shows 18-fold greater photoluminescence than the original platinum complex. In their recent paper, they provide insights into the causes of this, crowning a new approach to creating efficient non-toxic and biocompatible compounds for bioimaging. (2020-12-08)

Perfect imperfection: Electrode defects boost resistive memory efficiency
Resistive switching memory devices offer several advantages over the currently used computer memory technology. Researchers from the MIPT Atomic Layer Deposition Lab have joined forces with colleagues from Korea to study the impact of electrode surface morphology on the properties of a resistive switching memory cell. It turned out that thicker electrodes have greater surface roughness and are associated with markedly better memory cell characteristics (2020-11-23)

Chemistry: How nitrogen is transferred by a catalyst
Catalysts with a metal-nitrogen bond can transfer nitrogen to organic molecules. In this process short-lived molecular species are formed, whose properties critically determine the course of the reaction and product formation. The key compound in a catalytic nitrogen-atom transfer reaction has now been analysed in detail by chemists at the University of Göttingen and Goethe University Frankfurt. The detailed understanding of this reaction will allow for the design of catalysts tailored for specific reactions. (2020-11-13)

JNCCN study evaluates cost-effectiveness of olaparib for metastatic pancreatic cancer
New research in the November 2020 issue of JNCCN identifies metastatic pancreatic cancer patient subgroups with the highest relative cost-effectiveness from maintenance olaparib, a PARP inhibitor. (2020-11-12)

MD Anderson researchers present immunotherapy advances at Society for Immunotherapy of Cancer Annual Meeting
Promising clinical results with combination treatments for patients with melanoma and lung cancer highlight immunotherapy advances being presented by researchers from The University of Texas MD Anderson Cancer Center at The Society for Immunotherapy of Cancer (SITC) 35th Anniversary Annual Meeting & Pre-Conference Programs (SITC 2020) . (2020-11-11)

Invisible organic light-emitting diodes reach new world record
You can't see it with the naked eye, but a new fluorescent organic light-emitting diode (OLED) could shed light on the development of innovative applications in devices such as smartphone and television displays using near-infrared light. Created through the combined work of engineers from Polytechnique Montréal and chemists from Université de Montréal, this fluorescent OLED is 300% more efficient than existing OLEDs in its category. The research team published today details in the journal Advanced Functional Materials. (2020-11-11)

Electrified magnets: researchers uncover a new way to handle data
The properties of synthesised magnets can be changed and controlled by charge currents as suggested by a study and simulations conducted by physicists at Martin Luther University Halle-Wittenberg (MLU) and Central South University in China. In the journal 'Nature Communications', the team reports on how magnets and magnetic signals can be coupled more effectively and steered by electric fields. This could result in new, environmentally friendly concepts for efficient communication and data processing. (2020-11-09)

Chemical scissors snip 2D transition metal dichalcogenides into nanoribbon
One of the biggest challenges in making hydrogen production clean and cheap has been finding an alternative catalyst necessary for the chemical reaction that produces the gas, one that is much cheaper and abundant than the very expensive and rare platinum that is currently used. Researchers in Korea have now found a way to 'snip' into tiny nanoribbons a cheap and plentiful substance that fits the bill, boosting its catalytic efficiency to at least that of platinum. (2020-10-29)

Ultra-small hollow alloy nanoparticles for synergistic hydrogen evolution catalysis
The ultra-small hollow ternary alloy PtNiCu, PtCoCu and CuNiCo nanoparticles were prepared via an effective and simple one-pot strategy. Due to moderately synergistic interactions between the three metals of Pt, Ni, Cu and H*, the hollow PtNiCu nanoparticles showed the excellent hydrogen evolution reaction (HER) performance. In alkaline electrolyte, the overpotential at 10 mA cm-2 is 28 mV versus RHE. Its mass activity is 5.62-fold higher than that of commercial Pt/C system. (2020-10-28)

New method for upcycling polyethylene creates value from plastic waste
Using a unique catalyst to molecularly deconstruct polyethylene, the most commonly used form of plastic, researchers present a solvent-free way to transform it into higher-value, widely used chemical compounds. (2020-10-22)

Development of cost-efficient electrocatalyst for hydrogen production
The key to promoting the hydrogen economy represented by hydrogen vehicles is to produce hydrogen for electricity generation at an affordable price. Hydrogen production methods include capturing by-product hydrogen, reforming fossil fuel, and electrolyzing water. Water electrolysis in particular is an eco-friendly method of producing hydrogen, in which the use of a catalyst is the most important factor in determining the efficiency and price competitiveness. (2020-10-09)

Spinach: good for popeye and the planet
Spinach, when converted from its leafy, edible form into carbon nanosheets, acts as a catalyst for an oxygen reduction reaction in fuel cells and metal-air batteries. (2020-10-05)

Noble metal clusters can enhance performance of catalysts and save resources
Billions of noble metal catalysts are used worldwide for the production of chemicals, energy generation, or cleaning the air. However, the resources required for this purpose are expensive and limited. To optimize the use of resources, catalysts based on single metal atoms have been developed. A research team of Karlsruhe Institute of Technology (KIT) demonstrated that noble metal atoms may assemble to form clusters under certain conditions. Results are reported in Nature Catalysis (DOI: 10.1038/s41929-020-00508-7). (2020-10-01)

Our health: New focus on the synergy effect of nanoparticles
Nanoparticles are valuable and useful in many products, but according to a new study, they can also damage our cells. Researchers are concerned about the effect of lifelong exposure to the human organism. (2020-10-01)

Identified the cellular process by which Cisplatin chemotherapy causes neuronal damage
Cisplatin induces senescence of peripheral neurons through overexpression of the p21 protein, which would explain the neuropathy. (2020-09-29)

High-performance single-atom catalysts for high-temperature fuel cells
Platinum (Pt)-based catalysts demonstrate such excellent performance in fuel cell electrode reactions. However, at high temperatures, the Pt atoms are not stable and easily agglomerate. Therefore, Pt single-atom catalysts have been used only in low-temperature fuel cells, like polymer-electrolyte membrane fuel cells, which is used for hydrogen electric vehicles. Under these circumstances, a domestic research team have developed a catalyst that requires only a small amount of platinum for the significant improvement of performance and can operate stably at high temperatures. (2020-09-25)

Immunotherapy improves survival in advanced bladder cancer patients
An immunotherapy drug called 'avelumab' has been shown to significantly improve survival in patients with the most common type of bladder cancer, according to results from a phase III clinical trial led by Queen Mary University of London and Barts Cancer Centre, UK. (2020-09-18)

Single atom-thin platinum makes a great chemical sensor
Researchers at Chalmers University of Technology, Sweden, together with colleagues from other universities, have discovered the possibility to prepare one-atom thin platinum for use as a chemical sensor. The results were recently published in the scientific journal Advanced Material Interfaces. (2020-09-14)

High-precision electrochemistry: The new gold standard in fuel cell catalyst development
As part of an international collaboration, scientists at Argonne National Laboratory have made a pivotal discovery that could extend the lifetime of fuel cells that power electric vehicles by eliminating the dissolution of platinum catalysts. (2020-09-10)

New process boosts lignin bio-oil as a next-generation fuel
A new low-temperature multi-phase process for upgrading lignin bio-oil to hydrocarbons could help expand use of the lignin, which is now largely a waste product left over from the productions of cellulose and bioethanol from trees and other woody plants. (2020-09-08)

FEFU scientists are paving way for future tiny electronics and gadgets
Scientists of the School of Natural Sciences of Far Eastern Federal University (SNS FEFU) with colleagues from Russia, South Korea, and Australia suggest the breaking new ground approach to manage spin-electronic properties and functionality of the thin-film magnetic nanosystems. The method is important for the development of a new generation of tiny electronics (spin-orbitronics) and superfast high-capacity computer memory. A related article appears in NPG Asia Materials. (2020-08-27)

Lung cancer trial of RET inhibitor selpercatinib achieves durable responses in majority of patients with RET gene fusions
For patients with non-small cell lung cancers marked by RET gene fusions, the targeted therapy selpercatinib was well tolerated and achieved durable objective responses, or tumor shrinkage, in the majority of patients in a Phase I/II trial. (2020-08-26)

Sandwich catalysts offer higher activity and durability
POSTECH professor In Su Lee's team develops a double-layered nanoporous platinum catalyst that activates hydrogen generation. (2020-08-25)

Hydrogen vehicles might soon become the global norm
Roughly one billion cars and trucks zoom about the world's roadways. Only a few run on hydrogen. This could change after a breakthrough achieved by researchers at the University of Copenhagen. The breakthrough? A new catalyst that can be used to produce cheaper and far more sustainable hydrogen powered vehicles. (2020-08-24)

Fuel cells for hydrogen vehicles are becoming longer lasting
An international research team led by the University of Bern has succeeded in developing an electrocatalyst for hydrogen fuel cells which, in contrast to the catalysts commonly used today, does not require a carbon carrier and is therefore much more stable. The new process is industrially applicable and can be used to further optimize fuel cell powered vehicles without CO2 emissions. (2020-08-24)

Scientists get atomistic picture of platinum catalyst degradation
Degradation of platinum, used as a key electrode material in the hydrogen economy, severely shortens the lifetime of electrochemical energy conversion devices, such as fuel cells. For the first time, scientists elucidated the movements of the platinum atoms that lead to catalyst surface degradation. (2020-08-24)

A touch of gold sends crystals electric with excitement
A touch of gold - or another noble metal - can change the structure of a crystal and its intrinsic properties, physicists at the University of Warwick have demonstrated in a display of modern-day alchemy. (2020-08-19)

New kind of interaction discovered in hydrogen-producing enzymes
Hydrogenases can convert hydrogen just as efficiently as expensive platinum catalysts. In order to make them usable for biotechnological applications, researchers are deciphering how they work in detail. A team from Bochum and Oxford now reports in the journal PNAS that the transfer of protons and electrons by the enzyme takes place spatially separated, but is nevertheless coupled and thus, a decisive factor for efficiency. (2020-08-17)

Heat smarter, not harder -- How microwaves make catalytic reactions more efficient
Scientists at Tokyo Institute of Technology (Tokyo Tech) and International Christian University (ICU) demonstrate a synchrotron X-ray spectroscopy-based method by which the local temperatures of metal nanoparticles can be measured under microwaves. This approach provides insight into the role that their temperature has on their catalytic performance and sheds light on how local particle heating using microwaves could become a critical strategy for improving the energy efficiency of catalytic reactions. (2020-07-27)

Vacancy dynamics on CO-covered Pt(111) electrodes
USTC reported in situ video-STM observations of additional point defects in the presence of this dynamic CO adlayer. The STM observations presented in this work provide direct insights into their dynamic behavior and formation mechanisms. (2020-07-25)

Scientists develop new material for longer-lasting fuel cells
New research suggests that graphene -- made in a specific way -- could be used to make more durable hydrogen fuel cells for cars (2020-07-22)

New material can generate hydrogen from salt and polluted water
Developed a new 2D material to produce hydrogen, which is the basis of alternative energy. The material efficiently generates hydrogen molecules from fresh, salt, and polluted water by exposure to sunlight (2020-07-21)

Robust high-performance data storage through magnetic anisotropy
A technologically relevant material for HAMR data memories are thin films of iron-platinum nanograins. An international team led by the joint research group of Prof. Dr. Matias Bargheer at HZB and the University of Potsdam has now observed experimentally for the first time how a special spin-lattice interaction in these iron-platinum thin films cancels out the thermal expansion of the crystal lattice. (2020-07-10)

An innovative catalyst with Pt, Re and SnO2 nanoparticles as anode material in ethanol fuel cells
Scientists working at the Department for Functional Nanomaterials at the Institute of Nuclear Physics of the Polish Academy of Sciences designed and synthesized a functional ternary Pt/Re/SnO2/C catalyst as an anode material in a direct ethanol fuel cell. It was possible by synthesizing platinum, rhenium and tin oxide nanoparticles of a spherical shape and ensuring physical contact between them. This finding will lead to the production of more efficient, greener and cheaper fuel cell catalysts. (2020-06-24)

SLAC and Stanford scientists home in on pairs of atoms that boost a catalyst's activity
A study identified which pairs of atoms in a catalyst nanoparticle are most active in a reaction that breaks down a harmful exhaust gas in catalytic converters. The most active particles contained the biggest proportion of one particular atomic configuration -- one where two atoms, each surrounded by seven neighboring atoms, form pairs to carry out the reaction steps. The results are a step toward engineering cheaper, more efficient catalysts. (2020-06-22)

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