News tagged with precious metals
Colombia's tinted gold passes for precious stones
All that glitters is gold under a new thermochemical process developed by Colombian engineers for color-tinting the precious metal to make it look like sapphires, rubies or emeralds.
Apr 08, 2012 |
4.8 / 5 (4) |
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Big, bad bacterium is an 'iron pirate'
(PhysOrg.com) -- Life inside the human body sometimes looks like life on the high seas in the 1600s, when pirates hijacked foreign vessels in search of precious metals.
Feb 21, 2012 |
4.3 / 5 (3) |
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Silver nanoparticles trap mercury
(PhysOrg.com) -- Anyone who thinks amalgams are limited to tooth fillings is missing something: Amalgams, which are alloys of mercury and other metals, have been used for over 2500 years in the production ...
Nanotechnology / Nanomaterials
Feb 16, 2012 |
5 / 5 (1) |
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Fool's gold may prove an unlikely alternative to overexploited catalytic materials
Catalytic materials, which lower the energy barriers for chemical reactions, are used in everything from the commercial production of chemicals to catalytic converters in car engines. However, with current catalytic materials ...
Feb 10, 2012 |
4.4 / 5 (10) |
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Electrochemical dissolution of platinum in an ionic liquid
(PhysOrg.com) -- Precious metals, especially platinum, are important catalytic materials for many chemical reactions. For example, platinum is used in some fuel cells; however, broad commercialization of such ...
Jan 12, 2012 |
5 / 5 (1) |
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Where does all the gold come from?
Ultra high precision analyses of some of the oldest rock samples on Earth by researchers at the University of Bristol provides clear evidence that the planet's accessible reserves of precious metals are the ...
Space & Earth / Earth Sciences
Sep 07, 2011 |
4.4 / 5 (24) |
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Chinese researchers look at possibility of capturing asteroids in Earth orbit
(PhysOrg.com) -- In an interesting twist regarding the study of asteroids and what happens when they come close to our planet, Hexi Baoyin and his two colleagues, Yang Chen and Junfeng Li at Tsinghua University ...
Space & Earth / Space Exploration
Sep 02, 2011 |
4 / 5 (10) |
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3Q: As precious metals grow more precious
The value of silver soared to an all-time high last Thursday, and plunged dramatically yesterday, illustrating the constant volatility of the precious-metals market, which includes lustrous commodities like ...
Other Sciences / Economics & Business
May 06, 2011 |
not rated yet |
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Silver saver: Nanotechnology keeps the shine on silver
(PhysOrg.com) -- Anyone who's ever polished silver knows that keeping the tarnish at bay is never ending work. But, you may not know that polishing also rubs away some of the precious metal, whether it's your ...
Nanotechnology / Nanomaterials
Apr 12, 2011 |
4.7 / 5 (3) |
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Advanced technology creates new range of multi-functional textiles
Research by two Victoria University PhD graduates has advanced cutting edge technology that combines wool with gold and silver to create a new range of multi-functional textiles.
Jan 19, 2011 |
5 / 5 (2) |
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Japan deep-sea robots to seek minerals: report
Resource-poor Japan plans to use deep-sea mining robots to exploit rare earths and precious metals on the ocean floors around the island nation within a decade, according to a media report.
Jan 07, 2011 |
5 / 5 (2) |
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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 |
4.7 / 5 (3) |
2
Replacing precious metal catalysts with iron, nickel and other earth-abundant metals
Rare and expensive, precious metals such as platinum, rhodium and palladium are used extensively as catalysts on a large scale in preparing pharmaceutical and agricultural chemicals, as well as for applications ...
Oct 20, 2010 |
3 / 5 (2) |
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Researchers develop alternative to gold in electrical applications
(PhysOrg.com) -- Researchers at the University of Connecticut, partnering with United Technologies Research Center (East Hartford, CT) engineers, have modeled and developed new classes of alloy materials for ...
Oct 13, 2010 |
4.8 / 5 (18) |
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Geologist says there's no need to fight over mineral resources
It's easy to be a pessimist in a world full of calamities. But for those worried about the continuing availability of natural resources, data from the ocean makes a good case for optimism, says economic geologist Lawrence ...
Space & Earth / Earth Sciences
Oct 07, 2010 |
4.7 / 5 (13) |
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