Sentences with word «ruthenium»

Ruthenium is a chemical element with the symbol Ru. It is a rare metal that is often used in electronics, as a catalyst in chemical reactions, and in jewelry. Full definition
Methods: Scientists Novotny and Dr. Zdenek Dohnálek along with Prof. Falko Netzer, one of the leading experts in two - dimensional oxides, laid down an atomically thin sheet of graphene on top of ruthenium metal.
It's crafted from crackled patent leather and enriched with ruthenium hard ware (kind - of silver).
In this case, they discovered that not all of the argon gets trapped in the cages — a small amount goes to the interface between the framework and ruthenium surface.
Carbon dioxide - laden water from a fossil - fuel plant would pass across ruthenium catalyst membranes, which would trigger artificial photosynthesis, breaking it down into oxygen as well as constituents that can be converted to fuel.
Researchers detected the behavior in a crystal of ruthenium trichloride at the Oak Ridge National Laboratory in Tennessee.
They compared the abundance of ruthenium isotopes in these meteorites with the abundance in Earth's mantle.
«As a next step, I deposited nanoparticles of ruthenium dioxide, a catalyst,» Azarpira explains.
Spreading single ruthenium atoms across a sheet of graphene, the atom - thick form of carbon, turned out to be fairly straightforward, Tour said.
The electrode is made of an extremely porous gold structure into which ruthenium oxide has been inserted.
In one recent study, they obtained good results by incorporating ruthenium ions into a sheet - like nanostructure composed of carbon nitride.
To accomplish this, they used compounds of the chemical element ruthenium as a catalyst.
Researchers around the world have therefore instead largerly had to resort to various rare and precious metals, such as ruthenium, which have more easily provided the desired properties.
Rice University scientists have fabricated a durable catalyst for high - performance fuel cells by attaching single ruthenium atoms to graphene.
The estimated amount of radioactive ruthenium released could only have come from processing several tons of spent nuclear fuel, IRSN says.
Baking that at 750 degrees Celsius (1,382 degrees Fahrenheit) in the presence of nitrogen and hydrogen gas reduced the graphene and locked nitrogen atoms to the surface, providing sites where ruthenium atoms could bind.
The experiment is the first to show that the untreated form in which ruthenium occurs at Yanartas can act in this way.
The researchers are looking at adding ruthenium dioxide to the titanium and determining how the carbon dioxide reacts.
This is a TEM image of CeO2 - supported ruthenium nanoparticles catalyst.
Outside of the blanket, ozone is bubbled through the solution and nonradioactive ruthenium tetroxide gas is released.
This decays in seconds to stable ruthenium - 100.
«Ruthenium rules for new fuel cells: Project disperses single atoms on graphene to match platinum standard.»
Meyer, a chemist at University of North Carolina at Chapel Hill and director of its Energy Frontier Research Center in Solar Fuels, noticed that two separate groups of researchers working on two separate parts of the photosynthetic reaction happened to be using the same class of catalyst — ones with an atom of the metal ruthenium surrounded by organic molecules.
And by the way, adding a copper - coated ruthenium catalyst can also convert the HMF to DMF (2,5 - dimethylfuran), a fuel that provides more energy than ethanol.
A new one - pot approach of conjugated tetraenes from 1,3 - butadiene and two substituted acetylenes catalyzed by a zero - valent ruthenium complex.
Such an incident would have spewed many other radioactive pollutants besides ruthenium.
An efficient new process from the Weizmann Institute of Science in Israel produces hydrogen using a reusable ruthenium - based compound.
The coolest project was the evaluation of Ruthenium NAC - CORM molecules as agents for the cancer treatment, developed at the University of Cambridge during my PhD.
The research will further explain the kinetics information for palladium and other catalysts, including ruthenium and rhodium.
Givenchy Large Shark Earring in Rose Gold and Gunmetal $ 455.00 (USD) Givenchy Double Horn Shark Earring $ 785.00 (USD) Givenchy Shark Round Earring with Ruthenium Tone Brass, Faux Pearl and Crystal $ 530.00 (USD) Givenchy Turquoise Small Double Cone Shark Earring $ 470.00 (USD)
Women's round sunglasses from Tom Ford with light ruthenium frames.
Black patent leather, calf leather and metal Valentino Garavani Rockstud ballerinas from Valentino featuring a pointed toe, a strappy design, an ankle strap with a side buckle fastening, a brand embossed insole, ruthenium pyramid studs and a flat heel.
Setting cast in Pt 950 Platinum / Ruthenium per Brian Gavin's proprietary formula using approx.
Zakeeruddin and Grätzel have found that a combination of two ionic liquids along with a novel highly conjugated ruthenium - based dye gave them a solvent free solar cell.
A research team led by the Department of Energy's Oak Ridge National Laboratory has confirmed magnetic signatures likely related to Majorana fermions — elusive particles that could be the basis for a quantum bit, or qubit, in a two - dimensional graphene - like material, alpha - ruthenium trichloride.
The IrOx / SrIrO3 catalyst outperforms known IrOx and ruthenium oxide (RuOx) systems, the only other OER catalysts that have reasonable activity in acidic electrolyte.
But the element ruthenium is rare and expensive, making it unsuitable for use in rechargeable batteries.
The process requires platinum, rhenium and ruthenium catalysts, in the shape of sand or gravel pellets, all of which are expensive and rare.
Although much progress has been made in recent years in the development of catalysts devoid of noble metals, photosensitizers still rely, in the main, on molecular compounds containing rare and costly metals, such as ruthenium and iridium, or on inorganic semiconductor materials containing cadmium, a toxic metal.
Electrons from a scanning tunneling microscope tip turn a five - arm rotor connected via a single ruthenium atom bearing to a tripod anchoring the molecular motor to a gold surface.
The RuO2 (110) surface exposes bridging oxygen atoms and ruthenium atoms not capped by oxygen.
Robert Grubbs, a chemist now at the California Institute of Technology in Pasadena, and colleagues solved this problem by replacing molybdenum with ruthenium, a less electron - hungry transition metal.
«The ink holds a compound of ruthenium that emits a bright light when a voltage is applied across it»...
We are now left with just eight candidates, the noble metals: platinum, palladium, rhodium, iridium, osmium, ruthenium, silver and gold.
In the September 2013 version of their paper entitled «Analysis of the Investment Potential of Platinum Group Metals», James Ross McCown and Ron Shaw evaluate the investment value of platinum group metals (platinum, palladium, rhodium, iridium, ruthenium and osmium).
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