Everything News Jobs Opportunities Events Products/Services
Go to Home
Sign Up Sign in

The Low Carbon Economy Ltd

23 Jan 2009 05:01:05

World's smallest fuel cell developed

World's smallest fuel cell developed
A fuel cell shorter than a grain of rice has been developed, which researchers claim could be a precursor to models that replace batteries in mobile devices.

Chemical engineers at the University of Illinois set out to solve the problem of small scale fuel cell production.

The problem with creating small fuel cells is that they require a pump which at that scale uses more electricity than it generates.

"It's not practical to make a pump, a pressure sensor and the electronics to control the system in such a small volume," New Scientist quoted the university's Saeed Moghaddam as saying. "Even if they are magically made at that scale, their power consumption would probably exceed the power generated."

The device uses a membrane to let water into a chamber where it is evaporated and reacts with metal hydride to form hydrogen.

Once the gas is formed it puts pressure on the membrane, which stops the water from entering the chamber where the hydrogen reacts with electrodes to generate electricity.

As the electricity is consumed the pressure on the membrane eases allowing more water to enter the chamber.

Meanwhile, the council of Copenhagen, where the next round of talks to come to a global agreement to replace Kyoto will be held, plans to purchase hydrogen-powered cars.



Discussion Thread  


The Low Carbon Economy Ltd Community

Related Items From Everyone

  1. If you are a highly motivated, bright and enthusiastic individual, with an interest in the...

  2. Harrow School, the world-famous boarding school established 400 years ago, has installed a...

    25 Feb 2011
  3. Solar Pathway Markers Products & Services

    Solar powered garden lights are ideal ambient lighting of borders or pathways. Pathway markers...

  4. Storing carbon dioxide underground could provide a safe and long-lasting solution to reducing the...

    27 Nov 2007

Go To Home

Resource Links

We're social: View Available Feeds Find out more! Leave us your feedback


We appreciate all feedback. Please leave as much or as little as you like about any aspect of this website.

If your message requires a response, please leave your email address.