Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > "Wiring up" enzymes for producing hydrogen in fuel cells

Computer graphic representation of a single-walled carbon nanotube (elongated structure) "wired up" to a hydrogenase enzyme. Courtesy of Michael J. Heben, National Renewable Energy Laboratory
Computer graphic representation of a single-walled carbon nanotube (elongated structure) "wired up" to a hydrogenase enzyme. Courtesy of Michael J. Heben, National Renewable Energy Laboratory

Abstract:
Researchers in Colorado are reporting the first successful "wiring up" of hydrogenase enzymes. Those much-heralded proteins are envisioned as stars in a future hydrogen economy where they may serve as catalysts for hydrogen production and oxidation in fuel cells. Their report, describing a successful electrical connection between a carbon nanotube and hydrogenase, is scheduled for the Nov. issue of ACS' Nano Letters, a monthly journal.

"Wiring up" enzymes for producing hydrogen in fuel cells

Golden, CO | Posted on November 14th, 2007

In the new study, Michael J. Heben, Paul W. King, and colleagues explain that bacterial enzymes called hydrogenases show promise as powerful catalysts for using hydrogen in fuel cells, which can produce electricity with virtually no pollution for motor vehicles, portable electronics, and other devices. However, scientists report difficulty incorporating these enzymes into electrical devices because the enzymes do not form good electrical connections with fuel cell components. Currently, precious metals, such as platinum, are typically needed to perform this catalysis.

The researchers combined hydrogenase enzymes with carbon nanotubes, submicroscopic strands of pure carbon that are excellent electrical conductors. In laboratory studies, the researchers demonstrated that a good electrical connection was established using photoluminescence spectroscopy measurements. These new "biohybrid" conjugates could reduce the cost of fuel cells by reducing or eliminating the need for platinum and other costly metal components, they say.

####

For more information, please click here

Contacts:
Science Inquiries: Michael Woods, editor


General Inquiries: Michael Bernstein

202-872-4400

Michael J. Heben, Ph.D.
Energy Sciences
National Renewable Energy Laboratory
Golden, Colorado 80401
Phone: 303-384-6641
Fax: 303-384-6432


Paul W. King, Ph.D.
Energy Sciences
National Renewable Energy Laboratory
Golden, Colorado 80401
Phone: 303-384-6277
Fax: 303-384-6150

Copyright © American Chemical Society

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 Links

DOWNLOAD PDF

Related News Press

Discoveries

Physicists gain new insights into nanosystems with spherical confinement: Enormous potential for the targeted delivery of pharmaceutical agents and the creation of tailored nanoparticles July 27th, 2017

Strange electrons break the crystal symmetry of high-temperature superconductors: Brookhaven Lab scientists discover spontaneous voltage perpendicular to applied current that may help unravel the mystery of high-temperature superconductors July 27th, 2017

Getting closer to porous, light-responsive materials: A new flexible material changes its porous nature when exposed to light July 27th, 2017

First Capacitive Transducer with 13nm Gap July 27th, 2017

Announcements

Physicists gain new insights into nanosystems with spherical confinement: Enormous potential for the targeted delivery of pharmaceutical agents and the creation of tailored nanoparticles July 27th, 2017

Strange electrons break the crystal symmetry of high-temperature superconductors: Brookhaven Lab scientists discover spontaneous voltage perpendicular to applied current that may help unravel the mystery of high-temperature superconductors July 27th, 2017

Getting closer to porous, light-responsive materials: A new flexible material changes its porous nature when exposed to light July 27th, 2017

First Capacitive Transducer with 13nm Gap July 27th, 2017

Energy

Strange electrons break the crystal symmetry of high-temperature superconductors: Brookhaven Lab scientists discover spontaneous voltage perpendicular to applied current that may help unravel the mystery of high-temperature superconductors July 27th, 2017

'Upconverted' light has a bright future: Rice University professor developing plasmon-powered devices for medicine, security, solar cells July 17th, 2017

Making two out of one: FAU researchers have explained the mechanism behind a process that can increase the efficiency of organic solar cells July 12th, 2017

Argonne National Laboratory’s Continuous ALD Technology Licensed Exclusively to Forge Nano July 7th, 2017

Fuel Cells

Argonne National Laboratory’s Continuous ALD Technology Licensed Exclusively to Forge Nano July 7th, 2017

Electrocatalyst nanostructures key to improved fuel cells, electrolyzers June 5th, 2017

Stanford scientists use nanotechnology to boost the performance of key industrial catalyst May 18th, 2017

MIT Energy Initiative awards 10 seed fund grants for early-stage energy research May 4th, 2017

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