News tagged with metal surface
Secrets of mysterious metal hotspots uncovered by new single molecule imaging technique
The secrets behind the mysterious nano-sized electromagnetic "hotspots" that appear on metal surfaces under a light are finally being revealed with the help of a BEAST. Researchers at the DOE's Lawrence Berkeley ...
Jan 19, 2011 |
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Catalysis science of methanol oxidation over iron vanadate catalysts
Bulk mixed metal oxide compounds are employed as industrial oxidation catalysts for many reactions, but there is still debate in the heterogeneous catalysis literature about the nature of their catalytic active sites as well ...
Jan 12, 2011 |
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The generality of surface vanadium oxide phases in mixed oxide catalysts
In the spirit of the physicist's pursuit of a 'theory of everything,' Israel E. Wachs, the G. Whitney Snyder Professor of Chemical Engineering at Lehigh University, has published a paper entitled "The generality ...
Jan 05, 2011 |
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Anomalous Surface Compositions of Mixed Oxides
(PhysOrg.com) -- Mixed oxide compounds are used in many fields including ceramics, catalysis, electrolysis and even pigment design. Despite the extensive applications of such mixed oxide materials, little is known about their ...
Dec 14, 2010 |
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Novel fuel cell catalyst lowers need for precious metal
Fuel cells could create a breakthrough for electric cars, because refuelling them is fast and easy, just like your traditional gas guzzler. But there's an obstacle. Current fuel cells need platinum in order to work. And that's ...
Nov 23, 2010 |
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Making better biosensors with electron density waves
An emerging field with the tongue-twisting name of "optofluidic plasmonics" promises a new way to detect and analyze biological molecules for drug discovery, medical diagnostics, and the detection of biochemical weapons. ...
Oct 22, 2010 |
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Scientist receives grant to develop hydrogen-powered, solar-inspired nano-battery
There's a big buzz today over future nanostructure devices performing specialized jobs in everything from electronics to medicine. But what's still needed are unconventional ways to power these tiny machines.
Technology / Energy & Green Tech
Sep 23, 2010 |
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New microfluidic chip for discriminating bacteria
A new "on-chip" method for sorting and identifying bacteria has been created by biomedical engineers at Taiwan's National Cheng Kung University. The technique, developed by Hsien-Chang Chang, a professor at the Institute ...
Chemistry / Analytical Chemistry
Sep 14, 2010 |
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Would a molecular horse trot, pace, or glide across a surface?
(PhysOrg.com) -- Ludwig Bartels's lab has studied a class of molecular machines that 'walk' across a flat metal surface in order to determine how a quadrupedal molecular machine would move.
Sep 13, 2010 |
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Tiny rulers to measure nanoscale structures
With the advent of nanometer-sized machines, there is considerable demand for stable, precise tools to measure absolute distances and distance changes. One way to do this is with a plasmon ruler. In physics ...
Aug 31, 2010 |
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Scientists discover new principle in material science
(PhysOrg.com) -- Materials scientists have known that a metal's strength (or weakness) is governed by dislocation interactions, a messy exchange of intersecting fault lines that move or ripple within metallic ...
Nanotechnology / Nanomaterials
Apr 07, 2010 |
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Metal oxide 'can transform'
(PhysOrg.com) -- A team including Oxford University scientists has been investigating what happens to the top layer of atoms on the surface of a material that splits water and has potential uses in nanoelectronics.
Nanotechnology / Nanomaterials
Feb 15, 2010 |
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Computer predicts reactions between molecules and surfaces, with 'chemical precision'
Good news for heterogeneous catalysis and the hydrogen economy: computers can now be used to make accurate predictions of the reactions of (hydrogen) molecules with surfaces. An international team of researchers, headed by ...
Chemistry / Analytical Chemistry
Nov 06, 2009 |
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How Size Matters For Catalysts: Study Links Size, Activity, Electronic Properties
(PhysOrg.com) -- University of Utah chemists demonstrated the first conclusive link between the size of catalyst particles on a solid surface, their electronic properties and their ability to speed chemical ...
Nanotechnology / Nanomaterials
Nov 05, 2009 |
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Lasers put a shine on metals
(PhysOrg.com) -- Polishing metal surfaces is a demanding but monotonous task, and it is difficult to find qualified young specialists. Polishing machines do not represent an adequate alternative because they ...
Nov 03, 2009 |
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