Navigation Links
Cheap catalyst made easy

Catalysts made of carbon nanotubes dipped in a polymer solution equal the energy output and otherwise outperform platinum catalysts in fuel cells, a team of Case Western Reserve University engineers has found.

The researchers are certain that they'll be able to boost the power output and maintain the other advantages by matching the best nanotube layout and type of polymer.

But already they've proved the simple technique can knock down one of the major roadblocks to fuel cell use: cost.

Platinum, which represents at least a quarter of the cost of fuel cells, currently sells for about $65,000 per kilogram. These researchers say their activated carbon nanotubes cost about $100 per kilogram.

Their work is published in the online edition of Journal of the American Chemical Society at

"This is a breakthrough," said Liming Dai, a professor of chemical engineering and the research team leader.

Dai and research associates Shuangyin Wang and Dingshan Yu found that by simply soaking carbon nanotubes in a water solution of the polymer polydiallyldimethylammoniumn chloride for a couple of hours, the polymer coats the nanotube surface and pulls an electron partially from the carbon, creating a net positive charge.

They placed the nanotubes on the cathode of an alkaline fuel cell. There, the charged material acts as a catalyst for the oxygen-reduction reaction that produces electricity while electrochemically combining hydrogen and oxygen.

In testing, the fuel cell produced as much power as an identical cell using a platinum catalyst.

But the activated nanotubes last longer and are more stable, the researchers said. Unlike platinum, the carbon-based catalyst: doesn't lose catalytic activity and, therefore, efficiency, over time; isn't fouled by carbon monooxide poising; and is fre

Contact: Kevin Mayhood
Case Western Reserve University

Page: 1 2

Related biology technology :

1. James Bond Meets Cheaper by the Dozen: An Action Thriller the Entire Family Will Enjoy
2. Cheaper drugs, vaccines forecast as collaborations grow between developing countries biotech firms
3. Simple test could offer cheap solution to detecting landmines
4. Simple test could offer cheap solution to detecting landmines
5. Nanopillars promise cheap, efficient, flexible solar cells
6. Stanford researchers find a quicker, cheaper way to sort isotopes
7. Cheaper materials could be key to low-cost solar cells
8. Nanoscale dimensioning is fast, cheap with new NIST optical technique
9. GEECF: Spectrum Launches Zero Waste Philippines and Gears Towards Cheap Green Energy
10. New highly stable fuel-cell catalyst gets strength from its nano core
11. Catalyst sandwich
Post Your Comments:
(Date:1/15/2014)... interface is the device," Nobel laureate Herbert Kroemer ... be found at the junctures where layers of ... nanotechnology, the interfaces between layers of metal oxides ... high-tech favorites as spintronics, high-temperature superconductors, ferroelectrics and ...
(Date:1/15/2014)... FALLS, N.Y., Jan. 15, 2014   Niagara Thermal Products ... selected by Buffalo BioBlower Technologies LLC ("B3") as the ... Phase 2 award from the Army Corps of Engineers.  ... that kills all biological contaminants and destroys VOCs and ...
(Date:1/15/2014)... and SAN JOSE, California , January ... company developing antibody-drug conjugates for cancer, today announced the appointment ... Directors. Dr Reynolds has over 20 years, development experience gained ... at Seattle Genetics. "I am delighted to welcome ...
(Date:1/15/2014)... A study has been launched to test ... track could help to tackle the problem of obesity.  This ... GP surgery based in Stowmarket) and academics at University Campus ... Telemetry technology, which is inspired by equipment used to collect ...
Breaking Biology Technology:A deeper look at interfaces 2Niagara Thermal Products LLC Selected as Critical Supplier for Buffalo BioBlower Air Purification Systems 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 2Oxford BioTherapeutics Appoints Thomas C Reynolds MD, PhD to its Board of Directors 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4
... the only one completely confused by the Cingular merger with ... facts of the deal. Cingular Wireless acquires the assets and ... have 46 million customers, topping now No. 2 carrier Verizon ... keeps the rights to the AT&T Wireless brand and plans ...
... of the statewide Wisconsin business-plan contest this year ... survive the first round than they did during the inaugural ... initial abstracts of business ideas has passed, a panel of ... The survivors, who must write extended summaries for a further ...
... of Wisconsin-Milwaukee The director of the university's ... would leave for the University of Cincinnati in April. Professor ... feel valued, and that UW-Milwaukee does not have good ... , Menasha, Wis. Banta Corporation said it would ...
Cached Biology Technology:Cingular confusion 2Cingular confusion 3Coaching available for business-plan contest survivors 2
(Date:7/9/2014)... puzzle behind nature,s ability to split the water ... development of artificial photosynthesis for clean, green and ... collaboration of scientists led by researchers with the ... SLAC National Accelerator Laboratory. , Working at ... most powerful x-ray laser, the researchers were able ...
(Date:7/9/2014)... Guelph scientist that involved fitting bumblebees with tiny ... neonicotinoid pesticide hampers bees, ability to forage for ... professor in Guelph,s School of Environmental Sciences, and ... July 9 in the British Ecological Society,s journal ... how long-term pesticide exposure affects individual bees, day-to-day ...
(Date:7/9/2014)... With grilling season upon us, many backyard cooks are ... fatty hot dogs. But low fat can sometimes mean ... addressing the texture problem in low-fat wieners that are ... study was published in ACS, Journal of Agricultural ... colleagues note that hot-dog consumers have come to expect ...
Breaking Biology News(10 mins):Postcards from the photosynthetic edge 2Postcards from the photosynthetic edge 3Bee foraging chronically impaired by pesticide exposure: Study 2
... ARBOR, Mich. Researchers at the University of ... techniques for head and neck cancer to avoid ... A new study shows these principles and techniques ... swallowing complications. The researchers applied highly conformal, ...
... a CD, reminded her son, Ryan, of his 4-H project when ... three beautiful squealing black and white piglets at the auction," she ... Lincoln Town Car, because we didn,t have a truck." Recordings ... him four times a day. They were part of a new ...
... The European Nucleotide Archive (ENA) is launched today, consolidating ... point to globally comprehensive DNA and RNA sequence information. ... Institute (EMBL-EBI), a part of European Molecular Biology Laboratory. ... previously unimaginable amounts of data being deposited in the ...
Cached Biology News:U-M study achieves reduced side effects in head and neck cancer treatment 2Can a mother's voice spur recovery from a coma? 2Can a mother's voice spur recovery from a coma? 3Can a mother's voice spur recovery from a coma? 4Can a mother's voice spur recovery from a coma? 5Enabling easy access to DNA sequence information 2
... Immunogen: Partially purified ... MA1-710 detects vitamin D receptor (VDR) ... amphibian, and fish tissues. This ... or glucocorticoid receptors. MA1-710 detects ...
... AccuPrime™ Pfx DNA Polymerase is ideal ... for downstream applications such as cloning ... provided by a proprietary enzyme preparation ... sp. with proofreading (3'Cut Site5' exonuclease) ...
... BV-10 offers precision beveling of ... 50m. The unique abrasive plate ... for greater control of the ... accomplished very rapidly and produces ...
Biology Products: