Sentences with word «europium»

(One estimate suggests there's 0.5 - 1 gram of europium in every CRT screen.)

And if the August 2017 merger is typical for such events, even if there are only one or two such mergers each year in a cube of space 6 million light - years on a side, they would still be the dominant source of europium in the Milky Way, the researchers say.

Basic uncommon earth metal silicate in an illuminate oxide europium dope and Strontium powders among different plans.

A team at the Department of Energy's Oak Ridge National Laboratory has designed and synthesized a selective molecular trap that can separate the minor actinide element americium from a mixture of americium and the lanthanide elements, using europium as the model lanthanide in experiments.

As a result, one positive charge per europium ion is neutralized.

Another explanation is that cataclysmic explosions of stars, called supernovas, form most europium and other elements heavier than nitrogen.

They produce the materials by heating a readily available precursor material, which also allows them to incorporate triply charged europium ions, Eu3 +, as «dopants» into any of the LaOBr nanocrystals.

Researchers who've pored over the data since last year now think the collision also made 1 - 5 Earth masses of a very rare element called europium, according to a recent study in The Astrophysical Journal.

Researchers suspected europium was formed by colliding neutron stars, but couldn't be sure how much until one was detected.

Terbium MOFs emit green light; europium MOFs glow red.

Doping terbium MOFs with 5 % europium results in orange luminescence.

The team screened numerous nanocrystals with different symmetries before discovering a material that met their criteria: a potassium fluoride crystal doped with Yb and europium rare earths (KYb2F7: Eu).

In collaboration with KU Leuven chemists the researchers have now managed to recover europium from the liquid mixture with UV light instead of a solvent.

In early 2015, KU Leuven chemists developed ionic liquid technology to recycle europium and yttrium from collected fluorescent lamps and low - energy light bulbs.

For other applications, however, it is necessary to separate europium and yttrium from the rare - earth mixture.

They are indium and gallium inside the semiconductor diode and rare earths like europium or terbium in the phosphor.

Professor Tom Van Gerven from the Department of Chemical Engineering explains: «The traditional method dissolves europium and yttrium in aqueous acid.

For example, europium allows your television to display vibrant reds; neodymium is a key ingredient in the magnets used in hybrid - vehicle motors; and yttrium is in fluorescent lightbulbs.

Officials at the European Central Bank evidently decided it would be fitting if europium - based compounds were added to euro banknotes as fluorescent security markings.

A little europium is also added to mercury vapor streetlamps to whiten their otherwise cold blue light.

Terbium and europium recently overtook silver in price, reaching $ 40 an ounce.

The relationship between europium and the euro was not announced; it was revealed only when Freek Suijver and Andries Meijerink, two curious chemists at the University of Utrecht in the Netherlands, put the notes into their spectrometer.

Schnick showed how highly efficient europium - doped nitridosilicate and oxonitridosilicate materials are being industrially applied in phosphor - converted (pc)- light - emitting diodes, which are up to 80 % more energy efficient.

Designing and synthesizing an organic compound to strongly bind americium in the presence of europium required teamwork that is characteristic of a national lab.

Using data gathered in August 2017 during a neutron star merger that occurred between 85 million and 160 million light - years away (an event in which the colliding stars together weighed about three times the mass of our sun), current astrophysical models suggest that that single event generated between one and five Earth masses of europium and between three and 13 Earth masses of gold, the researchers report this month in The Astrophysical Journal.

Because very big atoms are highly unstable, they almost immediately break apart and decay into smaller atoms — stuff like platinum, gold, silver, and europium.

The study could mean that neutron - star collisions are responsible for forging most of the europium and gold we find on Earth, not to mention other key elements.

What's still uncertain is how much colliding neutron stars might contribute to europium.

Rare earth elements (which yttrium, europium, terbium and dysprosium are all considered) are used extensively in technology such as smart phones, electric and hybrid cars, rechargeable batteries, and screen display panels.

Scientific Reports published this week set out the discovery of a seemingly indefinite deposit of yttrium, europium, terbium and dysprosium that exists off the coast of Japan.

Some elements — such as gold, europium, and many others heavier than iron — are forged by a process dubbed rapid neutron capture, in which an atomic nucleus quickly absorbs a series of neutrons to reach a stable form before it radioactively decays.

When doped with an appropriate amount of europium, a rare - earth metal, the compound displays intensive luminescence over a very narrow range of frequencies in the red band.

But it takes several years to start or restart a mine and demand for several rare earth elements — notably neodymium, europium, terbium and dysprosium — is forecast to outpace supply in the near term, according to a 2010 report by the British Geological Survey.

The two phases for proton and electron conduction are marked in color: barium cerate doped with europium oxide (BCEO) and cerium doped with yttrium and europium oxide (CYO).

When we shine UV light upon the solution of europium and yttrium, we add energy to the system.

The advantages of UV light are that it does not leave behind any harmful chemicals in the liquid and that the separation efficiency and purity in synthetic mixtures is very high: more than 95 % of the europium is recovered from the solution.

But this process leaves much to be desired in terms of efficiency and purity: it needs to be repeated dozens of times to recover a high percentage of a particular rare earth metal, and there will still be traces of yttrium in the europium - containing liquid and vice versa.»

Both europium and yttrium have three positive charges per ion.

When we add sulphate, only the europium reacts with it.

Researchers from the KU Leuven Department of Chemical Engineering have discovered a method to separate two rare earth elements — europium and yttrium — with UV light instead of with traditional solvents.

Eventually, the separate elements are dried, and the powder versions of neodymium, europium, and the rest are bagged up and sold to customers, some of them Apple's partners that make the speakers, the screen, and the vibration unit that comprise an iPhone.

This is a schematic diagram of the europium doped gadolinium oxide nanorods and the silica coating to improve the biocompatibility.

Dr. Yaping Du of Xi'an Jiaotong University, China, and colleagues have developed a way to make high - quality nanocrystals of lanthanide oxybromides, where the lanthanide metal can be lanthanum, europium, gadolinium or terbium.

In a study published in the inaugural issue of the journal Applied Materials Today, a new rapid, online only publication, the team of researchers describe how they make these films which are based on the heavy metals lanthanum and europium.

The strategy identified five rare earth metals (dysprosium, neodymium, terbium, europium, and yttrium) as well as indium as «most critical in the short term,» as measured by their importance to clean - energy technologies and the risk of supply disruption.

All the rare earths, europium is perhaps the most visible.

«I learned that the use of europium was intentional,» Meijerink says, «but I am sorry to say that I have no inside information on who, where, and how it was decided to use the europium luminescence.»

Colorful fluorescence is the calling card of another rare - earth element with another odd name: europium.

Among these were elements 60, 63 and 64 — or neodymium, europium and gadolinium.

europium A rare chemical element that appears as a silver metal when it is pure.