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Latest Platinum nanoparticles Stories

2012-08-29 06:59:40

By modifying the rate at which chemical reactions take place, nanoparticle catalysts fulfill myriad roles in industry, the biomedical arena and everyday life. They may be used for the production of polymers and biofuels, for improving pollution and emission control devices, to enhance reactions essential for fuel cell technology and for the synthesis of new drugs. Finding new and more effective nanoparticle catalysts to perform these useful functions is therefore vital. Now Nongjian (NJ)...

2012-08-24 12:20:01

This technology can be used to power airplanes, vehicles and electronic devicesSingapore, Aug 24, 2012 - (ACN Newswire) - Using a mixture of gold, copper and platinum nanoparticles, IBN researchers have developed a more powerful and longer lasting fuel cell material. This breakthrough was published recently in leading journal, Energy and Environmental Science.Fuel cells are a promising technology for use as a source of electricity to power electronic devices, vehicles, military aircraft and...

DNA Code Shapes Gold Nanoparticles
2012-08-08 16:01:32

DNA holds the genetic code for all sorts of biological molecules and traits. But University of Illinois researchers have found that DNA´s code can similarly shape metallic structures. The team found that DNA segments can direct the shape of gold nanoparticles — tiny gold crystals that have many applications in medicine, electronics and catalysis. Led by Yi Lu, the Schenck Professor of Chemistry at the U. of I., the team published its surprising findings in the journal Angewandte...

2011-10-11 13:49:34

Nanoparticles of a substance can be counted and the size distribution can be determined by dispersing the nanoparticles into a gas. But some nanoparticles tend to aggregate when the surrounding conditions change. Scientists at the University of Gothenburg, Sweden, have shown that it is possible to sort and count the particles, even when they have formed aggregates. "Nanoparticles are already used in many everyday products, such as sunscreen and cosmetics. It is important to be able to...

2011-09-19 08:11:18

Scientists at the University of Plymouth have shown, for the first time in an animal, that nanoparticles have a detrimental effect on the brain and other parts of the central nervous system. They subjected rainbow trout to titanium oxide nanoparticles which are widely used as a whitening agent in many products including paints, some personal care products, and with applications being considered for the food industry. They found that the particles caused vacuoles (holes) to form in parts of...

2011-02-22 22:01:12

Tiny metal nanoparticles are used as catalysts in many reactions, from refining chemicals to producing polymers and biofuels. How well these nanoparticles perform as catalysts for these reactions depend on which of their crystal faces are exposed. But previous attempts to design these nanoparticles by changing their shape have failed because the structures are unstable and will revert back to their equilibrium shape. Now, researchers at Northwestern University's Institute for Catalysis in...

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2011-02-09 10:16:29

By Mary Beckman, PNNL Bracing catalyst in material makes fuel cell component work better and 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 material is not only hardier but more chemically active as well. The researchers are confident the results will help improve fuel cell design. "Fuel cells are an important area of...

2010-12-15 15:32:02

A new study from researchers at North Carolina State University sheds light on how a technique that is commonly used for making single-metal nanoparticles can be extended to create nanoparticles consisting of two metals "“ and that have tunable properties. The study also provides insight into the optical properties of some of these nanoparticles. Tuning the optical properties of nanoparticles is of interest for applications such as security technology, and for use in making chemical...

2009-09-13 12:45:12

The same properties of nanoparticles that make them so appealing to manufacturers may also have negative effects on the environment and human health. However, little is known which particles may be harmful. Part of the problem is determining exactly what a nanoparticle is. A new analysis by an international team of researchers from the Center for the Environmental Implications of NanoTechnology (CEINT), based at Duke University, argues for a new look at the way nanoparticles are selected when...

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2009-03-12 09:32:29

The creation of long platinum nanowires at the University of Rochester could soon lead to the development of commercially viable fuel cells. Described in a paper published yesterday in the journal Nano Letters, the new wires should provide significant increases in both the longevity and efficiency of fuel cells, which have until now been used largely for such exotic purposes as powering spacecraft. Nanowire enhanced fuel cells could power many types of vehicles, helping reduce the use of...


Word of the Day
bellycheer
  • Good cheer; viands.
  • To revel; to feast.
The word 'bellycheer' may come from 'belle cheer', "good cheer".
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