Shaped platinum nanoparticles

Multimetallic nanoparticle promises less platinum, better efficiency

core shell nanoparticle 1Pricey platinum does not do well as catalyst when exposed to fuel-cell reactions for long. So, to avoid the frequent use of pure-platinum catalysts, a team of chemists at Brown University has created a unique core and shell nanoparticle that continues to operate through the oxygen reduction reaction at the cathode end of a fuel cell. The nanoparticle is a five-nanometer palladium (Pd) core enveloped by a shell that consists of iron and platinum (FePt).

While retaining its original shape, the shell requires the smallest amount of platinum for an efficient reaction. The team decomposed iron pentacarbonyl [Fe(CO)5] to reduce it to platinum acetylacetonate [Pt(acac)2]. The shell used only 30 percent platinum.core shell nanoparticle anoparticles generated 12 times more current than traditional catalysts, consistently over 10, 000 cycles. The U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy funded the research that was conducted by Brown graduate student and co-author Vismadeb Mazumder and researchers from Oak Ridge National Laboratory in Tennessee.

ProQuest, UMI Dissertation Publishing Synthesis, characterization and optimization of platinum-alloy nanoparticle catalysts in proton exchange membrane fuel cells.
Book (ProQuest, UMI Dissertation Publishing)

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.

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