News tagged with fuel cell
Materials that shrink when heated
One common reason that people with fillings experience toothache is that their fillings expand at a different rate to the original tooth when, for example, drinking a hot drink. Contrary to intuition, however, ...
Feb 09, 2012 |
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Solvay hails world's largest fuel cell of type in Flanders, one can power 1,400 homes
Chemicals giant Solvay hailed Monday the successful entry into service in Flanders of what it said was the largest fuel cell of its type in the world.
Technology / Energy & Green Tech
Feb 06, 2012 |
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New California rules require cleaner cars
California, long a national leader in cutting auto pollution, pushed the envelope further Friday as state regulators approved rules to cut greenhouse gas emissions from cars and put significantly more pollution-free vehicles ...
Technology / Energy & Green Tech
Jan 30, 2012 |
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Chemists to develop new materials for hydrogen storage in vehicles
(PhysOrg.com) -- The biggest challenge with hydrogen-powered fuel cells lies in the storage of hydrogen: how to store enough of it, in a safe and cost-effective manner, to power a vehicle for 300 miles? ...
Jan 27, 2012 |
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Electrochemical dissolution of platinum in an ionic liquid
(PhysOrg.com) -- Precious metals, especially platinum, are important catalytic materials for many chemical reactions. For example, platinum is used in some fuel cells; however, broad commercialization of such ...
Jan 12, 2012 |
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Team models ionic conductivity in doped ceria for use as a fuel cell electrolyte
(PhysOrg.com) -- Optimizing the conductivity of ceria based oxides, or doped ceria, is crucial to their use as electrolytes in future solid oxide fuel cells.
Jan 12, 2012 |
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Stockholm techies use water to charge mobile phones
(PhysOrg.com) -- A Swedish company headquartered in Stockholm has figured out how to power smartphones using a system that includes some water, a tray, a little round container, and an eyeglass case styled ...
Technology / Energy & Green Tech
Jan 12, 2012 |
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Helping hydrogen move back home
Millions of dollars are being spent on developing electric vehicles. Electric vehicles, powered by hydrogen fuel cells, provide the demanded driving range and low environmental impact. However, hydrogen fuel ...
Jan 11, 2012 |
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SRNL research paves way for portable power systems
Developments by hydrogen researchers at the Savannah River National Laboratory (SRNL) are paving the way for the successful development of portable power systems with capacities that far exceed the best batteries ...
Jan 09, 2012 |
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N.E. Chemcat Corp. licenses Brookhaven Lab's electrocatalyst technology for fuel cells
N.E. Chemcat Corporation, Japan's leading catalyst and precious metal compound manufacturer, has licensed electrocatalysts developed by scientists at the U.S. Department of Energy's Brookhaven National Laboratory that can ...
Jan 03, 2012 |
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Navy researchers investigate small-scale autonomous planetary explorers
Robotic exploration to remote regions, to include distant planetary bodies, is often limited by energy requirements to perform, in repetition, even the simplest tasks. With this in mind, researchers at the ...
Jan 03, 2012 |
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Apple applies for two fuel cell patents for use with portable computing devices
(PhysOrg.com) -- In a move that demonstrates Apple’s determination to create an ever lighter Macbook that is also more environmentally friendly, the company has applied for two different patents that ...
Technology / Energy & Green Tech
Dec 23, 2011 |
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Researchers discover a way to significantly reduce the production costs of fuel cells
Researchers at Aalto University in Finland have developed a new and significantly cheaper method of manufacturing fuel cells. A noble metal nanoparticle catalyst for fuel cells is prepared using atomic layer ...
Technology / Energy & Green Tech
Dec 20, 2011 |
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Study settles 125-year debate on how nitrogen-fixing bacteria breaches cell walls of legumes
A 125-year debate on how nitrogen-fixing bacteria are able to breach the cell walls of legumes has been settled. A paper to be published on Monday by John Innes Centre scientists reports that plants themselves allow bacteria ...
Dec 19, 2011 |
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Making molecular hydrogen more efficiently
(PhysOrg.com) -- When it comes to the industrial production of chemicals, often the most indispensable element is one that you can't see, smell, or even taste. It's hydrogen, the lightest element of all.
Dec 09, 2011 |
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Fuel cell
A fuel cell is an electrochemical conversion device. It produces electricity from fuel (on the anode side) and an oxidant (on the cathode side), which react in the presence of an electrolyte. The reactants flow into the cell, and the reaction products flow out of it, while the electrolyte remains within it. Fuel cells can operate virtually continuously as long as the necessary flows are maintained.
Fuel cells are different from electrochemical cell batteries in that they consume reactant from an external source, which must be replenished – a thermodynamically open system. By contrast, batteries store electrical energy chemically and hence represent a thermodynamically closed system.
Many combinations of fuels and oxidants are possible. A hydrogen fuel cell uses hydrogen as its fuel and oxygen (usually from air) as its oxidant. Other fuels include hydrocarbons and alcohols. Other oxidants include chlorine and chlorine dioxide.
The principle of the fuel cell had been demonstrated by Sir William Grove in 1839, and other investigators had experimented with various forms of fuel cell. The first practical fuel cell was developed by Francis Thomas Bacon in 1959.
For more information about Fuel cell, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
