Nanowires boost fuel cell | The Daily Star
12:00 AM, April 05, 2011 / LAST MODIFIED: 12:00 AM, April 05, 2011

Booster Nanowire

Nanowires boost fuel cell

Taylor and Schroers engineered nanowires out of a novel material called bulk metallic glass

Fuel cells have been touted as a cleaner solution to tomorrow's energy needs, with potential applications in everything from cars to computers
But one reason fuel cells aren't already more widespread is their lack of endurance. Over time, the catalysts used even in today's state-of-the-art fuels cells break down, inhibiting the chemical reaction that converts fuel into electricity. In addition, current technology relies on small particles coated with the catalyst; however, the particles' limited surface area means only a fraction of the catalyst is available at any given time.
Now a team of engineers at the Yale School of Engineering & Applied Science has created a new fuel cell catalyst system using nanowires made of a novel material that boosts long-term performance by 2.4 times compared to today's technology. Their findings appear on the cover of the April issue of ACS Nano.
Yale engineers Jan Schroers and André Taylor have developed miniscule nanowires made of an innovative metal alloy known as a bulk metallic glass (BMG) that have high surface areas, thereby exposing more of the catalyst. They also maintain their activity longer than traditional fuel cell catalyst systems.
Current fuel cell technology uses carbon black, an inexpensive and electrically conductive carbon material, as a support for platinum particles. The carbon transports electricity, while the platinum is the catalyst that drives the production of electricity.

Source: Science Daily

Stay updated on the go with The Daily Star News App. Click here to download it for your device.

Grameenphone and Robi:
Type START <space> BR and send SMS it to 2222

Type START <space> BR and send SMS it to 2225

Leave your comments

Top News

Top News