News tagged with platinum
Rational design can improve hydrogen fuel cell efficiency
(PhysOrg.com) -- Hydrogen fuel cells, in which the chemical energy of hydrogen is converted into electricity, offer the potential for a wide variety of applications, especially in transportation and power ...
Feb 29, 2012 |
4.4 / 5 (12) |
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'Unzipped' carbon nanotubes could help energize fuel cells, batteries
Multi-walled carbon nanotubes riddled with defects and impurities on the outside could replace some of the expensive platinum catalysts used in fuel cells and metal-air batteries, according to scientists at ...
Nanotechnology / Nanomaterials
May 27, 2012 |
4.4 / 5 (7) |
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Nanosheet catalyst discovered to sustainably split hydrogen from water
(Phys.org) -- Hydrogen gas offers one of the most promising sustainable energy alternatives to limited fossil fuels. But traditional methods of producing pure hydrogen face significant challenges in unlocking ...
May 10, 2012 |
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Research demonstrates method that allows inexpensive carbon materials to store hydrogen at room temperature
Hydrogen has long been considered a promising alternative to fossil fuels for powering cars, trucks and even homes. But one major obstacle has been finding lightweight, robust and inexpensive ways of storing the gas, whose ...
Sep 19, 2011 |
4.9 / 5 (14) |
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Nanoparticles help scientists harvest light with solar fuels
(PhysOrg.com) -- The humble alga, hated by boaters and pool owners, may someday help provide us with the raw machinery to power our appliances.
May 19, 2011 |
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Say hello to cheaper hydrogen fuel cells: Scientists document utility of non-precious-metal catalysts
(PhysOrg.com) -- Los Alamos National Laboratory scientists have developed a way to avoid the use of expensive platinum in hydrogen fuel cells, the environmentally friendly devices that might replace current ...
Apr 21, 2011 |
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A paperweight for platinum: Bracing catalyst in material makes fuel cell component work better, last longer
A new combination of nanoparticles and graphene results in a more durable catalytic material for fuel cells, according to work published today online at the Journal of the American Chemical Society. The catalytic ...
Nanotechnology / Nanomaterials
Feb 09, 2011 |
4.8 / 5 (6) |
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Platinum-coated nanoparticles could lead to better fuel cells
(PhysOrg.com) -- Fuel cells may power the cars of the future, but it's not enough to just make them work -- they have to be affordable. Cornell researchers have developed a novel way to synthesize a fuel cell ...
Nanotechnology / Nanomaterials
Dec 09, 2010 |
4 / 5 (7) |
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Nanotechnology promises better catalytic converter
(PhysOrg.com) -- Control over material properties would reduce the amount of platinum needed.
Nanotechnology / Nanomaterials
Sep 27, 2010 |
5 / 5 (3) |
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Researchers discover less expensive low-temperature catalyst for hydrogen purification
(PhysOrg.com) -- Engineering researchers from Tufts University, the University of Wisconsin-Madison and Harvard University have demonstrated the low-temperature efficacy of an atomically dispersed platinum catalyst, which ...
Sep 23, 2010 |
4.8 / 5 (6) |
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New catalyst of platinum nanoparticles could lead to conk-out free, stable fuel cells
In the quest for efficient, cost-effective and commercially viable fuel cells, scientists at Cornell University's Energy Materials Center have discovered a catalyst and catalyst-support combination that could ...
Nanotechnology / Nanomaterials
Aug 02, 2010 |
4.9 / 5 (24) |
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For platinum catalysts, smaller may be better
When it comes to metal catalysts, the platinum standard is, well, platinum! However, at about $2,000 an ounce, platinum is more expensive than gold. The high cost of the raw material presents major challenges ...
Nanotechnology / Nanomaterials
Jun 28, 2010 |
4.2 / 5 (5) |
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Cheap hydrogen fuel from seawater may be a step closer
(PhysOrg.com) -- A new catalyst has been developed to generate hydrogen from water cheaply, but the research was originally intended to make molecules that behaved like magnets. Hydrogen is a clean power source ...
Apr 29, 2010 |
4.5 / 5 (21) |
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Scientists Create World's Smallest Snowman (w/ Video)
(PhysOrg.com) -- David Cox, a scientist in the Quantum Detection group at the National Physical Laboratory in the UK, is an expert in nanofabrication techniques. Recently, using the tools of his trade and ...
Dec 04, 2009 |
3.5 / 5 (20) |
5
A recipe for controlling carbon nanotubes
Nanoscopic tubes made of a lattice of carbon just a single atom deep hold promise for delivering medicines directly to a tumor, sensors so keen they detect the arrival or departure of a single electron, a replacement for ...
Nanotechnology / Nanomaterials
Sep 20, 2009 |
4.9 / 5 (7) |
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Platinum
Platinum (pronounced /ˈplætɨnəm/) is a chemical element with the chemical symbol Pt and an atomic number of 78. Its name is derived from the Spanish term platina del Pinto, which is literally translated into "little silver of the Pinto River." It is in Group 10 of the periodic table of elements. A dense, malleable, ductile, precious, gray-white transition metal, platinum is resistant to corrosion and occurs in some nickel and copper ores along with some native deposits. Platinum is used in jewelry, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and catalytic converters. Platinum bullion has the ISO currency code of XPT. Platinum is a commodity with a value that fluctuates according to market forces. On June 5, 2009, Platinum was worth $1263.00 per troy ounce (approximately $40.09 per gram).
For more information about Platinum, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
