Sentences with phrase «cells produce hydrogen»

Our cells produce hydrogen sulfide from the amino acid L - cysteine, thanks to help from two enzymes, cystathionine β - synthase (CBS) and cystathionine & # 947 - lyase (CSE).

Fuel cells produce hydrogen, store it and then convert it into electricity.

Not exact matches

«Electricity splits water into hydrogen and oxygen, and the same cell can later use the hydrogen to produce electricity and heat.»

Toronto - based Hydrogenics, for example, produces fuel cells that convert hydrogen into clean electricity.

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.

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.

Using a simple membrane extract from spinach leaves, researchers from the Technion - Israel Institute of Technology have developed a bio-photo-electro-chemical (BPEC) cell that produces electricity and hydrogen from water using sunlight.

A solar cell splits water with two electrodes, producing oxygen on one electrode, while generating hydrogen on the other.

Fuel cells are far greener than gas - powered engines because they produce electricity without burning up the hydrogen (or other fuel) that powers them.

Fuel cell vehicles produce zero tailpipe emissions, but the entire hydrogen production stream needs to be low - carbon

Thus, in order to successfully produce the main types of «the energy currency» under a high concentration of hydrogen sulfide, the intestinal microflora inhabitants should use a unique type of terminal oxidases, which is missing in the cells of humans and animals,» says Vitaly Borisov.

The work, which appears in the November 27, 2014, edition of Science Express, points to new avenues for producing single - site supported gold catalysts that could produce high - grade hydrogen for cleaner energy use in fuel - cell powered devices, including vehicles.

In another application, the sensor was used to study how cells respond to the introduction of extracellular hydrogen peroxide, which produces a wave of oxidation as it moves through the cellular structures.

A fuel - cell electric vehicle works by converting hydrogen to electricity, producing only heat and water in the process.

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.

Hyundai's Tucson will be the world's first mass - produced hydrogen fuel cell vehicle.

Although the catalyst does produce oxygen from water, it does not produce hydrogen gas (H2) that can be burnt in a fuel cell.

Currently, electrolyzers (machines that split water into its constituent hydrogen and oxygen) need a catalyst, namely platinum, to run; ditto fuel cells to recombine that hydrogen with oxygen, which produces electricity.

By combining multiple images, the researchers produced movies correlating the production of hydrogen peroxide to the activities of the immune system cells.

«Hydrogen produced onboard the aircraft during flight can be channeled to a fuel cell for electrical energy generation,» said lead researcher Dr. Shani Elitzur of the Technion Faculty of Aerospace Engineering.

The new work, by James Mitchell at the Harvard School of Public Health and colleagues, suggests that holding back calories causes cells to produce hydrogen sulfide, which somehow makes tissues more resilient and prolongs the life of laboratory organisms.

Clean electricity could produce hydrogen for fuel - cell - powered vehicles and replace on - site boilers and furnaces for residential heating.

It's possible to produce hydrogen to power fuel cells by extracting the gas from seawater, but the electricity required to do it makes the process costly.

Rechargeable batteries are too heavy for the job, so engineers are planning to try a technology that would use current to separate water into oxygen and hydrogen during the day, and then reverse the process at night via fuel cells to produce electricity.

Nor is the Chevrolet Equinox the first fuel cell vehicle General Motors (GM) has ever produced: The 1966 Electrovan, an unwieldy and prohibitively expensive fuel cell van that never made it out of the lab, was the first of about 40 or so hydrogen - fueled vehicles that have been built by the U.S. carmaker.

Producing electricity in a hydrogen fuel cell has one by - product: water.

Professor Edwards added: «Instead of burning fossil fuels, leading to CO2, we use them to generate hydrogen, which with fuel cells produces electric power and pure water.

The fungus makes the chelator and produces hydrogen peroxide from oxygen, and together they start to digest the cell wall into the sugar found in the basic building block of wood, glucose, which the fungus can use as food.

Geologic storage of hydrogen gas could make it possible to produce and distribute large quantities of hydrogen fuel for the growing fuel cell electric vehicle market, the researchers concluded.

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 vehicle.

Professor Songtao Shi, principal investigator on the project, said the presence of hydrogen sulfide produced by the cells governs the flow of calcium ions.

If you do hydrogen evolution, producing hydrogen from water, that's water electrolysis, which produces clean hydrogen for fuel cells and other applications.»

Two main hurdles stand in the way of mass production and widespread consumer adoption of hydrogen «fuel cell» vehicles: the still high cost of producing fuel cells, and the lack of a hydrogen refueling network.

The aim now for Daimler and its allies is to ensure that the number of fuel - cell powered vehicles running on generatively produced hydrogen is constantly increasing, demonstrating the market maturity of the fuel cell solution.

If we can engineer cells to produce hydrogen or butane or butanol — something that is a clean fuel — you could do that locally in conjunction with fuel cells.

Daimler's plans to start mass - producing fuel cell vehicles next year were severely limited by the lack of public hydrogen filling stations in Germany.

A new water splitter, which produces hydrogen for fuel cells, works without requiring fossil fuels or precious metals.

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 poHydrogen 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 pohydrogen will be zero - emission, an important factor given the need to reduce air pollution.

Electricity produced by a fuel cell by combining hydrogen and oxygen powered an electric motor to turn the two - seat test glider's propeller and enabled it to fly for roughly 20 minutes at 62 miles per hour (100 kilometers per hour) at about 3,300 feet (1,000 meters) above sea level.

«If you treat cells with antibiotics, you see that they start producing more [hydrogen sulfide] right away.»

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.

Researchers are making progress in producing and storing hydrogen that could power a new generation of fuel - cell cars, despite seesaw domestic funding from successive presidential administrations.

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.

Hydrogen fuel cells are a promising green energy solution, producing electricity much more efficiently and cleanly than combustion engines.

Because MRI detects energy - produced shifts in hydrogen atoms, when the «new» gene was introduced into animal cells and then «pelted» with radiofrequency waves from the MRI, it became readily visible.

The cells use hydrogen generated at solar and wind stations to produce electricity, heat, and water.

Because a fuel cell is rechargeable, the catalyst also «charges» the fuel cell by producing hydrogen.