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 ")
Robotic Barber Programmed With a Number of Styles
'He found a barber shop which, he thought, would be good for an idle hour.' - Don Wilcox, 1939.
Centipede Robots Down On The Farm
'...the walking mills of Puffy Products began to tread delicately on their centipede legs across the wheat fields of Kansas.' - Fritz Leiber, 1958.
Vipera Electric Skis From Frigid Dynamics
'JOAN strapped on her power-skis...' - Ursula K. Le Guin, 1964.
Pivotal Blackfly Electric Aircraft Lifts And Hovers
'That explains how it was so easy for me to remain motionless in midair...' - RH Roman, 1929.
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
Robotic Barber Programmed With a Number of Styles
'He found a barber shop which, he thought, would be good for an idle hour.'
Humanoid Boxing Robot KO's Opponent - It's A Knockout!
'Thirty rounds of fighting is tough work. Even for machines.'
Caterpillar Electric Mining Loader Not Yet Ready For Moon
'...the excavations were already in progress, for he saw gray slopes of rubble.'
Centipede Robots Down On The Farm
'...the walking mills of Puffy Products began to tread delicately on their centipede legs across the wheat fields of Kansas.'
Anthropic's Claude AI Creates Legal Citation From Whole Cloth
'Here is a Clerk that would work incessantly, and neither eat, sleep, want payment, or grumble.'
Students Vie For Lunar Regolith Mining Robot Prize
'About time you got here,' the astronaut said.
'They Erased My Memory' Says Ariana Grande
'...using a neutralizing electronic impulse.'
Solitary Black Hole Wanders In Space
'...the Hole is something like a vortex or a whirlpool?'
Spaceplane From Virgin Atlantic
'ZARNAK, YOU'RE TO COMMAND A SCOUTING EXPEDITION --- FIND OUT WHAT THIS IS ALL ABOUT!'
DARPA Wants 'Large Bio-Mechanical Space Structures'
'These are your rudimentary seed packages... Some will combine in place to form more complicated structures.'
Robot Hand Creeps Along, Separate From It's Owner
'The crawling... object was V-Stephen's surgeon-hand...'
Taikonauts Exercise In China's Tiangong Space Station
'Joe got out the gravity-simulator harnesses...'
Korean Exoskeleton Suit F1 Helps You Put It On
'Better late than never.'
Have AI Researchers Given Up On 'Bio-Babies'?
'You couldn't have the capstone without the pyramid to hold it up.'
Bunker Busters and Bore-Pellets
'The first revelation of the new Soviet bore-pellets.'
'Spikeless' Brand Swizzle Stick Detects Spiked Drinks
'the unobtrusive inspections with tiny remote-cast snoopers...'
