The hydrogen molecule is able to generate power by passing through a device such
as a hydrogen fuel cell.
Long available in Europe, the B - Class has only been offered for lease in the U.S.
as a hydrogen fuel cell electric vehicle, and only in the L.A. area.
As hydrogen fuel cell vehicles continue to roll out in increasing numbers, the infrastructure for fueling them must expand as well.
The plan is to match the basic electric - drive system with various recharging sources, including engines that burn gasoline, ethanol and biodiesel fuels as well
as hydrogen fuel cells.
The graph above charts the contributions played by improved efficiency and adoption of renewable electricity sources as well
as hydrogen fuel cells (with the hydrogen generated with renewable energy).
As far
as hydrogen fuel cells versus electric cars or wind - powered land sailers, you can make arguments on all sides of the alternative fuel debate until you're blue in the face from too much CO2.
Not exact matches
But like many other, overly optimistic
hydrogen - based
fuel entrepreneurs, Dean, whose company made a specialized membrane that was to be used in the
fuel -
cell modules, watched the ground open beneath his feet
as the commercial take - up proved to be far slower than anyone anticipated.
Honda established a division late last year to develop electric vehicles (EVs)
as part of its long - held goal for lower - emission gasoline hybrids, plug - in hybrids, EVs and
hydrogen fuel cell vehicles (FCVs) to account for two - thirds of its line - up by 2030, from about 5 percent now.
Toyota follows in the footsteps of Daimler AG and divests part of its shares in Tesla
as the Japanese automaker looks to
hydrogen fuel cells as an alternative power source.
Both companies produce
fuel cells that convert
hydrogen into clean electricity and nearly half of Ballard's sales now come from China,
as the country adds
hydrogen -
fuelled electric buses to its roads.
Lobbyists for environmental groups and the planet's biggest automobile manufacturers are pushing the governor and legislative leaders to give tax breaks or taxpayer - funded rebates to consumers who buy zero - emissions vehicles, such
as battery electric or
hydrogen cell fuel cars.
Solid oxide
fuel cells that can use conventional fossil
fuels as well
as hydrogen are set to take a larger role in the energy game
Cars running on
hydrogen fuel cells produce zero emissions, but currently, factories must use fossil
fuels, such
as natural gas, or precious metals, such
as platinum, to...
The group found that although
fuel -
cell vehicles would produce zero greenhouse - gas emissions during use, the extraction and refinement of
hydrogen fuel would release three to five times
as much carbon into the air
as is released in procuring and refining gasoline and diesel.
And if
hydrogen is fed into a
fuel - cell stack — a batterylike device that generates electricity from hydrogen and oxygen — it can propel an electric car or truck with only water and heat as by - products [see «On the Road to Fuel - Cell Cars,» by Steven Ashley; Scientific American, March 20
fuel -
cell stack — a batterylike device that generates electricity from hydrogen and oxygen — it can propel an electric car or truck with only water and heat as by - products [see «On the Road to Fuel - Cell Cars,» by Steven Ashley; Scientific American, March 20
cell stack — a batterylike device that generates electricity from
hydrogen and oxygen — it can propel an electric car or truck with only water and heat
as by - products [see «On the Road to
Fuel - Cell Cars,» by Steven Ashley; Scientific American, March 20
Fuel -
Cell Cars,» by Steven Ashley; Scientific American, March 20
Cell Cars,» by Steven Ashley; Scientific American, March 2005].
Using sunlight to create
fuels (such
as hydrogen on the other electrode in this solar
cell) with inexpensively prepared electrodes may provide a solution to the intermittency drawback of solar energy.
It turns out they are indispensable for a range of urgently needed green energy technologies such
as wind turbine generators, low - energy lighting,
fuel cells, rechargeable batteries, magnetic refrigeration and
hydrogen storage.
As plug - in electric vehicle sales continue to putt along, automakers are increasingly pinning their hopes on hydrogen fuel cells as the clean vehicle technology of the futur
As plug - in electric vehicle sales continue to putt along, automakers are increasingly pinning their hopes on
hydrogen fuel cells as the clean vehicle technology of the futur
as the clean vehicle technology of the future.
Automakers have said they're concentrating
fuel -
cell vehicle sales in California, expanding to other states
as more
hydrogen fueling stations come available.
Previously, researchers have produced
hydrogen gas in microbial - powered, batterylike
fuel cells, but only when they supplemented the energy produced by the bacteria with electrical energy from external sources — such
as that obtained from renewable sources or burning fossil
fuels, says Bruce Logan, an environmental engineer at Pennsylvania State University, University Park.
Fuel Cells Electricity from any source, such
as solar, wind and even coal, can be used to break up water molecules into their
hydrogen and oxygen components in a device called an electrolyzer.
I was not pleased to see, once again, that
hydrogen is linked only with
fuel -
cell technology, which is «many years away» from mass production and costs several times
as much
as internal combustion technology.
SOFCs have long been seen
as second - string to the more well - known
hydrogen - based
fuel cells.
The Chevrolet Equinox starts with a chirping sound,
as gas injectors pump
hydrogen into its handmade
fuel cell stack.
In only two weeks of driving, the district coordinator of science for the Port Chester, N.Y., public school system has driven at least 600 miles (965 kilometers) on the car and her
fuel cell Equinox has gotten
as much
as 191 miles (307 kilometers) on its three full tanks (each holding slightly more than four kilograms, or 8.8 pounds, of compressed
hydrogen gas).
This synthesis route is capable of developing alternative catalysts of noble metals for many eco-friendly technologies such
as fuel cell vehicles,
hydrogen generation from water and CO2 reduction.
The unlikely material may one day compete with more high - tech solutions such
as carbon nanotubes for storing
hydrogen for
fuel -
cell - powered vehicles.
Should the market demands for
hydrogen fuel increase with the introduction of
fuel cell electric vehicles, the U.S. will need to produce and store large amounts of cost - effective
hydrogen from domestic energy sources, such
as natural gas, solar and wind, said Daniel Dedrick, Sandia
hydrogen program manager.
As a zero - emission fuel, the hydrogen can be recombined with oxygen to produce electric power on demand, such as onboard a fuel - cell vehicl
As a zero - emission
fuel, the
hydrogen can be recombined with oxygen to produce electric power on demand, such
as onboard a fuel - cell vehicl
as onboard a
fuel -
cell vehicle.
Hydrogen fuel cells, which expel only water and heat
as waste, are an appealing way to generate clean electricity, but the present technology relies on expensive platinum catalysts.
Automobiles powered by
hydrogen fuel cells are often lampooned
as the cars of the future — and they always will be.
All over the world researchers are investigating solar
cells which imitate plant photosynthesis, using sunlight and water to create synthetic
fuels such
as hydrogen.
A large of proportion of energy research aims to establish and optimize renewable sources such
as photovoltaics,
hydrogen fuel cells, biomass, and wind power, but energy research can also be about improving old technologies.
Fuel cells convert chemical energy into electrical energy using
hydrogen and oxygen — with water
as the only product.
Hydrogen is clean - burning, producing only water vapor as waste, so fuel - cell vehicles using hydrogen will be zero - emission, an important factor given the need to reduce air po
Hydrogen is clean - burning, producing only water vapor
as waste, so
fuel -
cell vehicles using
hydrogen will be zero - emission, an important factor given the need to reduce air po
hydrogen will be zero - emission, an important factor given the need to reduce air pollution.
That's been a high hurdle for devices called solid oxide
fuel cells (SOFCs) that convert
fuels — such
as methane and
hydrogen — directly to electricity without burning them.
They are filled with the
hydrogen gas essential to run the
fuel cells — or gas batteries,
as the Victorians call them — that are so vital for the economy and for powering everyday life.
In the early 2000s, Maria's group had pioneered the single - atom approach for metals anchored on oxide supports
as the exclusive active sites for the water - gas shift reaction to upgrade
hydrogen streams for
fuel cell use.
The
fuel cell ran on
hydrogen for several days at a favorable 160ºC, although it produced just 1 %
as much energy
as existing
fuel cells.
Results of the investigation have numerous uses in the field of
hydrogen fuel cell vehicles
as well
as the chemical industry,
as this new method is capable of generating
hydrogen from methane gas and electricity in just one step and with near - zero energy loss.
That is important not only for the design of dye - sensitised solar
cells, but also in order to be able to develop systems of materials for photocatalytic generation of
hydrogen for storing solar energy
as hydrogen fuel.»
The new, warm
fuel cell marries a solid electrolyte, such
as those found in solid - oxide
cells, with the
hydrogen - ion conduction used in polymer - electrolyte membrane (PEM)
fuel cells.
Hydrogen - powered
fuel cells are regarded
as a clean alternative to conventional combustion engines,
as, aside from electric energy, the only substance produced during operation is water.
At the time, Nocera's group focused on using the captured
hydrogen as a chemical
fuel, which can either be burned directly or run through a device called a
fuel cell to produce electricity.
Woodham, Peter Grade: 8 Summit Middle School - Boulder, CO Project Title: Molybdenum Disulfide
as a Catalyst in
Hydrogen Fuel Cells
The
hydrogen and oxygen gas can be stored separately, and later brought together
as fuel in what is called a
fuel cell.
As one component of DOE's portfolio,
hydrogen and
fuel cells can enable affordable and reliable energy that enhances economic growth and energy security.
Inside the
fuel cell, a catalyst generally made from platinum breaks apart the
hydrogen and «releases» electrons that serve
as energy sources.
It will focus on catalyst development for four applications: proton exchange membrane
fuel cells to convert stored energy in non-fossil
fuels into electricity; electrolysers for splitting water into oxygen and
hydrogen — a potential clean
fuel cell source; syngas, a mixture of CO and H2, which is generated from coal, gas and biomass, and widely used
as a key intermediate in the chemical industry; and lithium - air batteries.
A new report on
fuel cell vehicles from IHS Automotive forecasts that global production of
hydrogen fuel cell electric vehicles (FCEVs) will reach more than 70,000 vehicles annually by 2027,
as more automotive OEMs bring FCEVs to market.