It is powered by a hydrogen fuel-cell engine, which converts hydrogen gas into energy.
Percival Zhang at Virginia Tech is looking at ways to produce hydrogen gas from biomass.
Car batteries are filled with acid and can give off hazardous hydrogen gas if mishandled.
Cooling problems have resulted in damage to radioactive fuel rods, hydrogen gas explosions, fires and radiation releases.
Led by Prof Michael Hoffman, the toilet they designed was solar-powered and generated hydrogen gas and electricity.
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One hydrogen atom pairs with other free hydrogen atoms to create hydrogen gas, which is also captured and sold.
Also, no one has figured out a new system of hydrogen gas stations.
Also a type of electric vehicle, a fuel-cell car takes hydrogen gas and converts it into electricity, while emitting only water vapor.
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Shell's gasification technique consists of partially combusting pulverized coal to yield carbon monoxide and hydrogen gas, which combine to form synthetic natural gas.
The obvious solution getting people to breathe hydrogen cannot work either, because a lungful of hydrogen gas, being less dense than water, contains less hydrogen, and so would produce too weak an image.
But this portion could grow, given the hassles of making hydrogen:It requires a six-story furnace, called a steam-methane reformer, where natural gas combines with steam and nickel at 1, 600 degrees Fahrenheit to unleash hydrogen gas.
But all of that activity is focused on extracting energy and nutrients from food, so along with the hydrogen gas, the microbes are also packing in more calories for the host, which can lead to weight gain.
The carbon combines with the hydrogen in water to make carbon monoxide and hydrogen gas--the old "town gas"--but then the catalyst prompts a rejiggering of the atoms into methane (one carbon atom attached to four hydrogen atoms).
He has shown a strong interest in turning the island into a giant laboratory when the switch to fuel cell vehicles begins in earnest 10 to 15 years from now, as well as in testing the safety of hydrogen gas stations, the long-term reliability of cars and the economic viability of fuel cells.
With Plug Power, he mentioned, Honda is testing a home fueling unit that can generate hydrogen from natural gas, an important step in development of hydrogen fuel cell vehicles.
With Plug Power (nasdaq: PLUG - news - people ), he mentioned, Honda is testing a home fueling unit that can generate hydrogen from natural gas, an important step in development of hydrogen fuel cell vehicles.
Unlike a conventional hot air balloon where the height is controlled by a burner, the gas balloons are filled with hydrogen and controlled by releasing gas to go down and throwing out ballast to go up.
Fuel cells convert hydrogen, natural gas or other fuel into electricity through an electrochemical process.
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That mixture is then fed into a fuel reformer that turns it into a hydrogen-rich gas.
In 2005 he put mice into hibernationlike states with small doses of the toxic gas hydrogen sulfide.
The same hindrances are lodged at other alternative-energy vehicles, such as those powered by hydrogen and natural gas.
Dr Marcy suspects that his new discovery, which has about 45 times the mass of the Earth, is composed of a rocky core surrounded by a thick envelope of hydrogen and helium gas.
One promising idea is to extract the hydrogen from natural gas in large reformers located at filling stations, and then store it on board vehicles in solids known as metal hydrides.
Little, a consultancy that has investigated the matter, the running costs to a driver of a fuel-cell car that gets its hydrogen from natural gas would be comparable to those of one that used clean petrol.
They started with the vague idea of doing something in alternative energy and spent months researching fuel cells, only to discover what countless others have found: Fuel cells are temperamental and run on expensive fuels like hydrogen and natural gas.
Gunnar Lindstrom, who is charged with marketing Honda's alternative fuel vehicles in the U.S., believes that by 2020 six fuels will split the market: gasoline, diesel, biofuels, hydrogen, natural gas and electricity, perhaps working side by side in a single vehicle.
Earlier this week, Honda produced the first commercial hydrogen fuel-cell vehicles, which will rely on natural gas-derived hydrogen for fuel and will be leased for use in Los Angeles.
These, he says, are 1, 500 times better than existing sensors at detecting hydrogen. (The gas combines with the tubes, changing their electrical properties.) Hydrogen detection is used to help control certain processes in industrial food production, for tweaking fuel combustion in car engines, and in monitoring certain bacterial infections.
For the test run, Mr Lerner used deuterium, a heavy isotope of hydrogen, as the gas.
So, a hydrogen fuel-cell car even running ... on hydrogen derived from natural gas cuts that carbon emission by 60%.
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