Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Platinum-coated nanoparticles could power fuel cell cars

Atomic resolution images of the palladium-cobalt nanoparticle, before platinum deposition. Muller Lab
Atomic resolution images of the palladium-cobalt nanoparticle, before platinum deposition. Muller Lab

Abstract:
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 electrocatalytic material without breaking the bank.

By Anne Ju

Platinum-coated nanoparticles could power fuel cell cars

Ithaca, NY | Posted on December 9th, 2010

The research, published online Nov. 24 in the Journal of the American Chemical Society, describes a simple method for making nanoparticles that drive the electrocatalytic reactions inside room-temperature fuel cells.

Fuel cells convert chemical energy directly into electrical energy. They consist of an anode, which oxidizes the fuel (such as hydrogen), and a cathode, which reduces oxygen to water. A polymer membrane separates the electrodes. Fuel cell-powered cars in production today use pure platinum to catalyze the oxygen reduction reaction in the cathode side. While platinum is the most efficient catalyst available today for the oxygen reduction reaction, its activity is limited, and it is rare and expensive.

The Cornell researchers' nanoparticles offer an alternative to pure platinum at a fraction of the cost. They are made of a palladium and cobalt core and coated with a one-atom-thick layer of platinum. Palladium, though not as good a catalyst, has similar properties as platinum (it is in the same group on the Periodic Table of Elements; it has the same crystal structure; and it is similar in atomic size), but it costs one-third less and is 50 times more abundant on Earth.

Researchers led by Héctor D. Abruña, the E.M. Chamot Profesor of Chemistry and Chemical Biology, made the nanoparticles on a carbon substrate and made the palladium-cobalt core self-assemble -- cutting down on manufacturing costs. First author Deli Wang, a postdoctoral associate in Abruña's lab, designed the experiments and synthesized the nanoparticles.

David Muller, professor of applied and engineering physics and co-director of the Kavli Institute at Cornell for Nanoscale Science, led the efforts geared at imaging the particles down to atomic resolution to demonstrate their chemical composition and distribution, and to prove the efficacy of the catalytic conversions.

"The crystal structure of the substrate, composition and spatial distribution of the nanoparticles play important roles in determining how well the platinum performs," said Huolin Xin, a graduate student in Muller's lab.

The work was supported by the Energy Materials Center at Cornell, a Department of Energy-supported Energy Frontiers Research Center. Researchers also used equipment at the Cornell Center for Materials Research.

####

For more information, please click here

Contacts:
Media Contact:
Joe Schwartz
(607) 254-6235


Cornell Chronicle:
Anne Ju
(607) 255-9735

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Global Nano-Enabled Packaging Market For Food and Beverages Will Reach $15.0 billion in 2020 May 26th, 2015

Dr.Theivasanthi Slashes the Price of Graphene Heavily: World first & lowest price – Nano-price (30 USD / kg) of graphene by nanotechnologist May 26th, 2015

Fine-tuned molecular orientation is key to more efficient solar cells May 26th, 2015

DNA Double Helix Does Double Duty in Assembling Arrays of Nanoparticles: Synthetic pieces of biological molecule form framework and glue for making nanoparticle clusters and arrays May 25th, 2015

Chemistry

This Slinky lookalike 'hyperlens' helps us see tiny objects: The photonics advancement could improve early cancer detection, nanoelectronics manufacturing and scientists' ability to observe single molecules May 23rd, 2015

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

Nanosorbent Produced in Iran to Adsorb Tiny Amounts of Aromatic Hydrocarbon from Seawater May 18th, 2015

Science and Technology of Advanced Materials (STAM): Reported successes and failures aid hot pursuit of superconductivity May 15th, 2015

Govt.-Legislation/Regulation/Funding/Policy

Researchers find the 'key' to quantum network solution May 25th, 2015

One step closer to a single-molecule device: Columbia Engineering researchers first to create a single-molecule diode -- the ultimate in miniaturization for electronic devices -- with potential for real-world applications May 25th, 2015

DNA Double Helix Does Double Duty in Assembling Arrays of Nanoparticles: Synthetic pieces of biological molecule form framework and glue for making nanoparticle clusters and arrays May 25th, 2015

Engineering Phase Changes in Nanoparticle Arrays: Scientists alter attractive and repulsive forces between DNA-linked particles to make dynamic, phase-shifting forms of nanomaterials May 25th, 2015

Announcements

Global Nano-Enabled Packaging Market For Food and Beverages Will Reach $15.0 billion in 2020 May 26th, 2015

Dr.Theivasanthi Slashes the Price of Graphene Heavily: World first & lowest price – Nano-price (30 USD / kg) of graphene by nanotechnologist May 26th, 2015

Fine-tuned molecular orientation is key to more efficient solar cells May 26th, 2015

DNA Double Helix Does Double Duty in Assembling Arrays of Nanoparticles: Synthetic pieces of biological molecule form framework and glue for making nanoparticle clusters and arrays May 25th, 2015

Energy

Fine-tuned molecular orientation is key to more efficient solar cells May 26th, 2015

DNA Double Helix Does Double Duty in Assembling Arrays of Nanoparticles: Synthetic pieces of biological molecule form framework and glue for making nanoparticle clusters and arrays May 25th, 2015

Visualizing How Radiation Bombardment Boosts Superconductivity: Atomic-level flyovers show how impact sites of high-energy ions pin potentially disruptive vortices to keep high-current superconductivity flowing May 23rd, 2015

Conversion of Greenhouse Gases to Syngas in Presence of Nanocatalysts in Iran May 22nd, 2015

Automotive/Transportation

Wearables may get boost from boron-infused graphene: Rice U. researchers flex muscle of laser-written microsupercapacitors May 18th, 2015

ORNL demonstrates first large-scale graphene fabrication May 14th, 2015

Penn and UC Merced researchers match physical and virtual atomic friction experiments May 8th, 2015

Silicon Storage Technology and GLOBALFOUNDRIES Announce Qualification of Automotive Grade 55nm Embedded Flash Memory Technology May 5th, 2015

Fuel Cells

Unique microscopic images provide new insights into ionic liquids April 28th, 2015

Expanding the reach of metallic glass April 22nd, 2015

Newly-Developed Nanocatalysts Increase Performance of Fuel Cells April 16th, 2015

Cobalt film a clean-fuel find: Rice University discovery is efficient, robust at drawing hydrogen and oxygen from water April 15th, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project