Platinum
hidePlatinum (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).
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News tagged with platinum
A recipe for controlling carbon nanotubes
Nanotechnology / Nanomaterials
Sep 20, 2009 |
4.9 / 5 (7) |
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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 ...
Researchers Record First Real-Time Direct Observations of Nanocrystal Growth in Solution (w/ Video)
Aug 07, 2009 |
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(PhysOrg.com) -- The veil is being lifted from the once unseen world of molecular activity. Not so long ago only the final products were visible and scientists were forced to gauge the processes behind those ...
Extraterrestrial platinum was 'stirred' into the Earth
Space & Earth / Earth Sciences
Jul 30, 2009 |
4.6 / 5 (10) |
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(PhysOrg.com) -- A research program aimed at using platinum as an exploration guide for nickel has for the first time been able to put a time scale on the planet’s large-scale convection processes.
Going platinum: New catalyst could boost cleaner fuel use
Nanotechnology / Nanomaterials
May 14, 2009 |
4.1 / 5 (23) |
5
(PhysOrg.com) -- Material scientists at Washington University in St. Louis have developed a technique for a bimetallic fuel cell catalyst that is efficient, robust and two to five times more effective than ...
Scientists discover new platinum catalysts for the dehydrogenation of propane
Chemistry / Analytical Chemistry
Mar 13, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- The process to turn propane into industrially necessary propylene has been expensive and environmentally unfriendly. That was until scientists at U.S. Department of Energy's Argonne National ...
Researchers turn algae into high-temperature hydrogen source
Nov 12, 2009 |
3.6 / 5 (7) |
5
In the quest to make hydrogen as a clean alternative fuel source, researchers have been stymied about how to create usable hydrogen that is clean and sustainable without relying on an intensive, high-energy ...
Replacing Platinum in Fuel Cell Technology
Oct 20, 2009 |
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6
(PhysOrg.com) -- One of the biggest hindrances to the development of fuel cell technology is its cost. In order to work properly, polymer electrolyte fuel cells require a catalyst. So far, though, the most ...
Fuel cells get a boost
Nanotechnology / Nanomaterials
Oct 15, 2009 |
3.9 / 5 (17) |
6
Fuel cells, devices that can produce electricity from hydrogen or other fuels without burning them, are considered a promising new way of powering everything from homes and cars to portable devices like cellphones ...
Catalytic Catamarans: Common industrial catalyst sports rafts made of platinum
Sep 24, 2009 |
not rated yet |
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Catalysts convert useless or unwanted chemicals into useful or more desirable ones. Research in this week's Science reveals new, important details about a common catalyst: how rafts of chemically reactive platin ...
Platinum nanocatalyst could aid drugmakers
Nanotechnology / Bio & Medicine
Aug 31, 2009 |
not rated yet |
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(PhysOrg.com) -- Nanoparticles combining platinum and gold act as superefficient catalysts, but chemists have struggled to create them in an industrially useful form. Rice University chemists have answered the call this week ...
Increasing levels of rare element found worldwide
Space & Earth / Earth Sciences
Apr 21, 2009 |
4.5 / 5 (13) |
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Dartmouth researchers have determined that the presence of the rare element osmium is on the rise globally. They trace this increase to the consumption of refined platinum, the primary ingredient in catalytic converters, ...
Nanowires may lead to better fuel cells
Nanotechnology / Nanomaterials
Mar 11, 2009 |
4.5 / 5 (2) |
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(PhysOrg.com) -- The creation of long platinum nanowires at the University of Rochester could soon lead to the development of commercially viable fuel cells.
Carbon Nanotubes Make Fuel Cells Cheaper
Nanotechnology / Nanomaterials
Feb 09, 2009 |
4.3 / 5 (6) |
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(PhysOrg.com) -- As fuel cells are becoming more popular due to their potential use in applications such as hydrogen-powered vehicles, auxiliary power systems, and electronic devices, the need for the precious ...
Test identifies toxic platinum and palladium without time-consuming sample pretreatment
Nov 14, 2008 |
4.3 / 5 (3) |
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The painstaking process of detecting toxic species of platinum and palladium mixed in with the form of platinum essential to certain pharmaceuticals could be reduced to one simple step, University of Pittsburgh researchers ...
First atomic–scale compositional images of fuel-cell nanoparticles
Nanotechnology / Nanomaterials
Oct 02, 2008 |
4.6 / 5 (12) |
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(PhysOrg.com) -- In a step toward developing better fuel cells for electric cars and more, engineers at MIT and two other institutions have taken the first images of individual atoms on and near the surface ...
