Platinum nanoparticles applications

Graphene+Platinum Nanoparticles Bonding Effects Revealed — Fuel Cell Production Costs To Fall?

grapheneNew research from the University of Arkansas has revealed that platinum nanoparticles automatically limit their own size and organize into specific patterns when they’re bonded to freestanding graphene.

When exhibiting these behaviors, the platinum nanoparticles retain the ability to function effectively as a catalyst for chemical reactions — a finding that the researchers think may lead to lowered production costs for platinum-catalyzed fuel cells.

“Because platinum is a rare metal, a lot of the expense that goes into manufacturing hybrid vehicles is coming from the platinum needed to catalyze fuel cells, ” explained Paul Thibado, a professor of physics at the University of Arkansas.

“Platinum, when placed on solid surfaces, diffuses to form random particles that grow uncontrollably, and that limits their reactivity, ” he continued. “On the other hand, freestanding graphene has a very flexible surface, and we found that, due to local strain effects, there is an 80% reduction in the amount of platinum needed to maintain effective catalysis.”

Something else that the new research shows is that “a functionally superior, single-crystal platinum nanoparticle emerges from its application to graphene.”

“What we found was pretty exciting, ” Thibado explained. “It’s really quite special.”


The provides more:

The recent study, consisted of high-resolution transmission electron microscopy combined with scanning tunneling microscopy and state-of-the-art computational molecular dynamics. That is a combination rarely seen in physics.

Scanning tunneling microscopy, which produces images of individual atoms on a surface, was used to view the behavior of the platinum nanoparticles on the graphene. Researchers in Missouri used transmission electron microscopy, a technique in which a beam of electrons is transmitted through an ultra-thin material, to confirm the crystalline properties.

The merger of both experimental techniques with theoretical modeling yielded an unexpected result for the researchers: the bonding of the graphene to the platinum nanoparticles was unusual.

See also:
Platinum Manipulated With Photosynthetic Technique.: An article from: Nanoparticle News
Book (Business Communications Company, Inc.)

Is what we see based on what we believe?

by PositiveOption

Because I believe
1 Corinthians 3:19 For the wisdom of this world is foolishness with God. For it is written, He taketh the wise in their own craftiness.
That means I see that, because the cell's nanotechnology and complexity on multiple levels is unmatched by all the engineers on the earth combined, it is a paradox if it comes from a natural cause
But Science does not they say there two ways to get a efficient design?
1.Designers apply their energy and intelligence to trial and error and create a efficient design like the motor of the space shuttle
2

It is a trust in knowlede and it's source

by PositiveOption

One who loves God will see what they believe and the ones who trust science will believe what they see
1 Corinthians 3:19 For the wisdom of this world is foolishness with God. For it is written, He taketh the wise in their own craftiness.
That means I see that, because the cell's nanotechnology and complexity on multiple levels is unmatched by all the engineers on the earth combined, it is a paradox if it comes from a natural cause
But Science does not see it that way they say there two ways to get a efficient design?

Nanotechnology is not ready . how about

by bionecr

People move some of their interest to something that could be ready sooner. Nanotechnology has been given alot of press, and that may have caused us to over look the possibilities of accupuncture. Or most people are idiots and a small percentage of us do most of the creative thinking Why havent we brought the technique of accupuncture into the 21st century. Hollow micro needles delivering anti biotics to localized areas of the body, or chemotherapy delivered into the closest cappilaries. Such a waste of accupuncturists today. What if this technique were used in areas around the lungs for tuberculosis would we have cleared up infections with less risk of creating drug esistant strains

Nanotubes Increase Solar PV Conductivity 100 Million-Fold  — Sourceable
Carbon-based nanostructures are already being used as materials in solar cells with increasing frequency, yet their ability to enhance electrical performance has thus far been hampered by limited ability to assemble orderly networks using the materials.

Related Posts