Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
Solar-Powered Fuel Cells Easy As Photosynthesis
A new discovery by MIT scientists lead by Daniel Nocera and Matthew Kanan may make oxygen/hydrogen fuel cells a practical reality.
The key to their discovery is a new catalyst that can produce oxygen gas from water, while another produces hydrogen gas. It consists of consists of cobalt metal, phosphate and an electrode, placed in water. When electricity -- whether from a photovoltaic cell, a wind turbine or any other source -- runs through the electrode, the cobalt and phosphate form a thin film on the electrode, and oxygen gas is produced. The process works at room temperature in neutral pH water; it's easy to set up.
The greatest barrier to the use of fuel cells, which combine hydrogen and oxygen to produce energy and have pure water as a 'waste' product, is the production of hydrogen. Typically, this is done in a way that wastes energy; it burns more energy than it produces.
Nocera and Kanan were inspired by photosynthesis, which is Nature's way of taking the Sun's energy and using it to power the growth of plants and then store that energy.
(MIT energy storage system video w/Nocera interview video)
If this process can be implemented as a consumer product for use in homes, it could make everyone's house a "power plant" and minimizes the need for large power production facilities.
During the daytime, the sun's energy is used to power your house and run MIT's energy process to store energy as hydrogen fuel.
(Store power during the day)
At night, the stored hydrogen can be burned in a fuel cell to provide power for the home, and to charge your electric car for the next day.
(Use the hydrogen in your fuel cell at night)
Experts are greatly impressed with the technique.
"This is a major discovery with enormous implications for the future prosperity of humankind," said Barber, the Ernst Chain Professor of Biochemistry at Imperial College London. "The importance of their discovery cannot be overstated since it opens up the door for developing new technologies for energy production thus reducing our dependence for fossil fuels and addressing the global climate change problem."
Professor Nocera hopes that this technology will be widely available within ten years for homeowners.
From MIT solar revolution.
Scroll down for more stories in the same category. (Story submitted 8/4/2008)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 5 )
Related News Stories - (" Engineering ")
'Whisper Mode' ala Blue Thunder Researched At Bristol
'Forest Lawn.' from 'Blue Thunder' 1983.
Moonwalkers AI-Controlled Electric Shoes
Now that's power walking that Hugo Gernsback would have approved.
Electric Catamaran 'Explorer Eco 40m' Has 'Solar Skin'
'On went the electric-yacht faster and still faster.' - John Baker Hopkins, 1885.
Harvest Power From Tears And Blinking With Smart Contact Lens
'...he realized that it was not quite a clear lens. Speckles of colored brightness swirled and gathered in it.' - Vernor Vinge, 2001.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
CyberCab - Tesla Renames The Robotaxi
'A cybercab dogged their heels...'
SpaceHopper Microgravity Robot Lands On Its Feet
'...a slender-legged tripod surmounted by a spherical body no larger than a football.'
Brin's 1990 Novel Earth Still Full Of Predictions
'... making the point that their likenesses, every move they made, were being transmitted.'
'Whisper Mode' ala Blue Thunder Researched At Bristol
'Forest Lawn.'
Gaia - Why Stop With Just The Earth?
'But the stars are only atoms in larger space, and in that larger space the star-atoms could combine to form living matter, thinking matter, couldn't they?'
Microsoft VASA-1 Creates Personal Video From A Photo
'...to build up a video picture would require, say, ten million decisions every second. Mike, you're so fast I can't even think about it. But you aren't that fast.'
Splendid View Of Eclipse From Orbit Visualized And Repurposed By Arthur C. Clarke
'The area affected was five hundred kilometres across, and perfectly circular.'
Bespoke Environment Music From AIs
'Call 'em Winter Mute," said the other, making it two words.'
Goldene - A Two-Dimensional Sheet Of Gold One Atom Thick
'Hasan always pitched a Gauzy - a one-molecule-layer tent, opaque, feather-light, and very tough.'
SpaceX Wants A Moonbase Alpha
'And he had been sent with troops, supplies and bombs to command Russia's most trusted post, the Moonbase.'
Vast Apartment Living Will Get Even More Vast
'What is your population', I asked. 'About eighty millions.'
NASA Wants Self-Driving Or Remote-Controlled Vehicles For Lunar Astronauts
'THE autobus turned silently down the wide street of Hydropole. Robot-guided, insulated from noise and cold...'
Elon Musk Says Robotaxis Will Be Ready This August, 2024
'The car had no steering wheel, and no one drove!'
Moonwalkers AI-Controlled Electric Shoes
Now that's power walking that Hugo Gernsback would have approved.
Steve Jobs: 'Capture The Next Aristotle - With AI'
'It was disturbing to think of the Flatline as a construct...'
No Tips! Robotic Food Delivery In Phoenix
'...he rewired the delivery robot so that it would serve him midnight snacks.'
