Sentences with phrase «hydrogen produces water»

Water vapor is absorbed to produce hydrogen, but then the burning of hydrogen produces water vapor, which can then be absorbed by the system and produce more hydrogen.

Not exact matches

This uses electrolysis to «split» water, producing hydrogen and oxygen.

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

Hydrogen gas is a promising alternative energy source to overcome our reliance on carbon - based fuels, and has the benefit of producing only water when it is reacted with oxygen.

Stanford University scientists have invented a low - cost water splitter that uses a single catalyst to produce both hydrogen and oxygen gas 24 hours a day, seven days a week.

UNSW Sydney chemists have invented a new, cheap catalyst for splitting water with an electrical current to efficiently produce clean hydrogen fuel.

In superheating, water is heated well beyond its boiling point — in this case from 1,000 to 1,300 degrees Celsius — producing high - temperature steam to run turbines and also to operate solar reactors to split the water into hydrogen and oxygen.

VHTR plants could even produce hydrogen for fuel using high - temperature steam electrolysis, which breaks apart the bonds of water molecules; this process is 50 percent more energy - efficient than existing hydrogen production methods.

Clean renewable energy can be produced by photocatalytically splitting water into hydrogen and oxygen with solar energy.

Researchers are proposing a new «hydricity» concept aimed at creating a sustainable economy by not only generating electricity with solar energy but also producing and storing hydrogen from superheated water for round - the - clock power production.

Until now, however, this chemical was not considered a good catalyst for making moly sulfide to produce hydrogen from water through electrolysis.

Ocean water permeating the porous rock of the core could be exposed to ionizing radiation and undergo radiolysis, producing molecular hydrogen and reactive oxygen compounds.

Stanford scientists have invented a device that produces clean - burning hydrogen from water 24 hours a day, seven days a week.

Once the nanoparticles are added and light applied, the water separates into hydrogen and oxygen almost immediately, producing twice as much hydrogen as oxygen, as expected from the 2:1 hydrogen to oxygen ratio in H2O water molecules, Bao said.

The hydrogen would be stored for use overnight to superheat water and run the steam turbines, or it could be used for other applications, producing zero greenhouse - gas emissions.

«Single - catalyst water splitter produces clean - burning hydrogen 24/7.»

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.

The water - gas shift reaction, in which carbon monoxide is removed from the fuel gas stream by reacting with water to produce carbon dioxide and hydrogen, is a key step in the process.

Hydrogen gas is produced primarily by heating natural gas and water vapor.

The University of California, Davis, estimates that the cost per gram of hydrogen produced from the electrolysis of water will remain more expensive than hydrogen produced from natural gas with carbon capture and sequestration well through the end of the decade.

Asteroids also contain an abundance of water, which, aside from serving as hydration during space travel, could be used as a shield to protect spaceships from the sun's radiation or to produce hydrogen - and oxygen - based rocket fuels.

A nanostructured composite material developed at UC Santa Cruz has shown impressive performance as a catalyst for the electrochemical splitting of water to produce hydrogen.

Hydrogen gas is considered a possible future source of energy and can be produced from water using platinum catalysts and electricity.

He believes it could also play a role in a future large - scale hydrogen generator, which would collect the energy from sunlight in huge fields and then run that electric current through water to produce vast amounts of hydrogen to meet, for example, the demand from a future fleet of hydrogen - powered vehicles.

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

Hydrogen fuel itself can be developed relatively cheaply from natural gas, or produced from renewable sources of biogas or directly from water through electrolysis.

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

Units 1 and 3 have experienced explosions that destroyed exterior walls, apparently from buildups of hydrogen gas produced by the zirconium in the fuel rods reacting with coolant water at extremely high temperatures — but the interior containment vessels there thus far seem to be intact.

These charges can then split water molecules to produce hydrogen gas.

For the first time, researchers have sustainably produced hydrogen gas, a potential source of clean energy, using only water and bacteria.

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.

Aerospace engineers at the Technion - Israel Institute of Technology have developed and patented a process that can be used onboard aircraft while in flight to produce hydrogen from water and aluminum particles safely and cheaply.

The foundation for the technology is in the chemical reaction between aluminum powder and water to produce hydrogen.

Burning hydrogen leads to a chemical explosion that produces water.

This revolution requires conversion systems that produce hydrogen from water or rechargeable batteries that can store clean energy in cars.

He looks forward to a day when the same technology will be used to desalinate water or produce hydrogen: «Wave is new.

Ultimately, he found that, while volcanic eruptions would have spewed huge quantities of both sulfur dioxide and hydrogen sulfide into the atmosphere, it was the former that dissolved more easily in shallow waters, producing large concentrations of sulfidic anions, in the form of sulfites and bisulfites.

The catalyst the researchers have developed effectively drives the process of combining CO2 with hydrogen to produce methane (the main component of the fossil fuel natural gas) and water.

Using spectral readings from telescopes at the Keck Observatory in Hawaii, Hand has found high levels of oxidative chemicals such as sulfate, oxygen, sulfur dioxide and hydrogen peroxide on Europa's surface, which are produced as ionizing radiation from Jupiter scours it, splitting apart water molecules and sulfur compounds in the uppermost layers of its ice.

Current clinical MRI uses hydrogen in the body's water and fat to produce scans, but this does not provide all the information about tissue health and disease progression stages.

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.

Cortright and chemical engineer James Dumesic discovered in their university lab back in 2001 that by starting with water and various carbohydrates from plants — basically, carbon, hydrogen and oxygen compounds — and using catalysts, heat and pressure, they could start creating CO2 and hydrogen and then use that hydrogen to eliminate the oxygen as water (the process produces more water than it consumes).

For example, he said, helium 3 mining would produce by - products including water, hydrogen, carbon and nitrogen.

The U.S. Environmental Protection Agency has already certified hydrogen vehicles as zero - emission vehicles — they only produce water.

Titanium - based semiconductors are particularly popular as catalysts for solar water - splitting reactions to produce hydrogen, a clean renewable - energy source.

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

In addition, without water as a coolant, they do not produce explosive hydrogen gas when they overheat.

«You can react it with water to produce energy - rich hydrogen gas, or with hydrogen to produce useful chemicals, such as hydrocarbons or alcohols.

They incorporated a photocatalyst in a moisture - absorbing, semiconducting paint that can produce hydrogen from water in the air when exposed to sunlight.