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25 Current news about the topic iridium

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Multifunctional catalyst for poison-resistant hydrogen fuel cells

28-Jun-2017

Japanese collaboration develops catalyst that can oxidize both hydrogen and carbon monoxide to produce energy Demand for eco-friendly fuel sources is increasing as the goal of weaning off our reliance on fossil fuels becomes commonly recognized. Hydrogen represents a possible sustainable fuel ...

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Heavy Metal

13-Mar-2017

Roughly 13,000 years ago, large ice-age mammals known as megafauna —horses, camels, mammoths, mastodons and many others — suddenly disappeared in North America. At the same time, a widespread human culture vanished. Mounting scientific evidence suggests this happened in dramatic fashion by a ...

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Magnetic bits by electric fields

Making use of local electric fields for writing and deleting individual nanoscale magnetic skyrmions

08-Nov-2016

Physicists of the University of Hamburg in Germany have demonstrated for the first time the controlled writing and deleting of individual nanoscale magnetic knots – so called skyrmions – by applying local electric fields to an ultrathin film of iron as data storage medium. These tiny knots in the ...

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On the path toward bionic enzymes

17-Jun-2016

There may soon be a new way to make molecules to form the basis of pharmaceuticals, fuels, agrochemicals, materials, and an array of other products in our modern life. Chemists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have successfully married chemistry ...

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Flipping molecular attachments amps up activity of CO2 catalyst

07-Oct-2015

New research by chemists at the U.S. Department of Energy's Brookhaven National Laboratory and their collaborators offers clues that could help scientists design more effective catalysts for transforming CO2 to useful products. The study reveals how a simple rearrangement of molecular attachments ...

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'Parachuting' boron on benzene rings

A bulky catalyst induces pinpoint targeting on benzene to create bioactive molecules

16-Apr-2015

Tuning the para position of benzene moieties is significant for creating biologically active compounds and optoelectronic materials. Yet, attaching a functional handle specifically at the para position of benzene has been challenging due to multiple reactive sites on the ring. Chemists at ITbM, ...

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Europium complexes emit red light at record efficiency

04-Apr-2014

Researchers worldwide continue search for better luminescent materials for OLED manufacturing. Two new compounds with europium complexes developed at the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw display in their class record high luminescence efficiencies in ...

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The behavior of charges in correlated spin-orbit coupled materials

Electronic disruption prods Mott insulator's conversion to metallic state

11-Mar-2014

In a relatively recently discovered class of materials, known as spin-orbit Mott insulators, theorists have predicted the emergence of new properties at points just beyond the insulating state, when electronic manipulation can transform these compounds into conducting metals. A better ...

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Supercomputers join search for 'cheapium'

07-Jan-2014

In the search for cheaper materials that mimic their purer, more expensive counterparts, researchers are abandoning hunches and intuition for theoretical models and pure computing power. In a new study, researchers from Duke University’s Pratt School of Engineering used computational methods to ...

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Novel material stores unusually large amounts of hydrogen

X-ray study reveals the formation of iridium trihydride at high pressure

25-Nov-2013

An international team of researchers has synthesized a new material that stores an unusually large amount of hydrogen. Performing high-pressure X-ray studies at DESY's PETRA III and other light sources, the scientists detected the formation of previously unobserved iridium hydride from hydrogen ...

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