Sentences with phrase «oxygen and hydrogen gas»

Membrane: acts as a barrier, separating the oxygen and hydrogen gases to allow hydrogen fuel to be collected and pushed into a pipeline.

Not exact matches

Really easy actually, in an infinate universe, the speed of gases, for example hydrogen and oxygen molecules, continues to build there is no «matter» to slow them down.

«One of the proposed scenarios,» comments Romano Corradi, director of the GTC and another of the authors «is the presence of a component in the gas which is different from that which we normally find, poor in hydrogen and rich in heavier elements such as oxygen and carbon.

There are basically two types of lines, those produced by collisions between the atoms or ions and the electrons in the surrounding gas, which are called collision lines, and which are very bright for elements such as oxygen, nitrogen and neon, and lines which are produced when ions capture free electrons, which are called recombination lines, and which are bright only for those gases with the highest abundances in the interstellar medium: hydrogen and helium.

When Kanzius placed salt water in the path of the waves, however, the water broke apart into oxygen and hydrogen, a flammable gas.

Nocera had been working on a «bionic leaf» in which solar panels provide the energy to split water into hydrogen and oxygen gases.

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.

It uses channels modelled on the bronchial structure of the lungs to supply hydrogen and oxygen gas to their respective electrodes.

Kanzius had essentially replicated the centuries - old method of water electrolysis, separating water into hydrogen and oxygen gases by running a current through water loaded with salt, which makes it conductive.

Like hydrogen, oxygen, and iodine, nitrogen normally exists as two - atom molecules in the form of a gas at room temperature.

At high heat, the cladding interacts with the surrounding water vapor, binding tightly to the oxygen and freeing the hydrogen, which escapes as a gas.

BUGGING OUT Not only can this insectlike robot fly and swim, but it also splits water into hydrogen and oxygen gas, which the bot ignites to propel itself from the water.

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.

The technique could be used as a detection sensor for hydrogen or oxygen gases as well as for property controls of organic semiconductors and organic light emitting diodes (OLEDs).

Kourosh Kalantar - Zadeh, an engineer at the Royal Melbourne Institute of Technology in Australia, and his colleagues built plastic capsules about 2.5 centimeters long — about as long as a Jolly Rancher hard candy — that sniff out carbon dioxide, hydrogen and oxygen gas molecules in the gut.

Many of us are familiar with electrolytic splitting of water from their school days: if you hold two electrodes into an aqueous electrolyte and apply a sufficient voltage, gas bubbles of hydrogen and oxygen are formed.

Instead, water is divided into oxygen gas, positive hydrogen ions, and electrons that are transferred into another circuit.

Like Nocera's original device, Gamelin's technology is also only able to produce oxygen gas and hydrogen ions.

The cloud consists of ionized gas, or plasma, and contains the elements hydrogen, helium, and oxygen, along with heavier elements that were generated during the blast itself.

Subject to a surface temperature of about 1,800 degrees Fahrenheit, oxygen and carbon are ripped away from the planet by lighter hydrogen gas and carried in a streaming halo behind it.

«The smaller gas giants — Uranus and Neptune — consist largely of carbon, hydrogen and oxygen.

Ideally smaller - scale factories would also be able to make hydrogen peroxide on site, but this would require a completely different set of chemistry, direct synthesis of H2O2 from hydrogen and oxygen gas, which has long been poorly understood according to researchers at the University of Illinois at Urbana - Champaign.

For instance, when particles from uranium bump into water, they can create hydrogen gas, hydrogen peroxide, and oxygen.

If there were too much UV light, no water could survive on the surface because the water molecules would break up and escape through the top of the atmosphere as hydrogen and oxygen gas.

This lack of oxygen enables them to maintain their hydrogen - carbon bonds, a necessary ingredient for the production of oil and gas.

Two other students and O'Keefe settled at a vent, measuring the temperature at the opening and the velocity of the gases (including carbon monoxide, carbon dioxide, hydrogen sulfide, methane, and oxygen) that were flowing out.

«Without a membrane, the photoanode and photocathode are close enough to each other to conduct electricity, and if you also have bubbles of highly reactive hydrogen and oxygen gases being produced in the same place at the same time, that is a recipe for disaster,» Lewis says.

Instead, the coal reacts with the oxygen and immediately starts to break down into its component gases, mostly hydrogen and carbon monoxide.

Meyer, based at Grove City in Ohio, says that these electrically polarised conditions strain and break the covalent chemical bond between hydrogen and oxygen, liberating the two gases.

Here you can crank a handle to generate electricity to electrolyse water into hydrogen and oxygen (and recombine them with a bang), operate a miniature chemical plant or a gas scrubber, measure the pH of various common substances, or discover your personal hot spots by lying against a large sheet of liquid crystals.

These devices work best at converting hydrogen gas and oxygen to water and electricity, and even work at lower temperatures around 600 °C.

Not only can they hide from mackerel amongst the jellies» stinger - covered tentacles when they rise from the seafloor to feed and digest at night, they can also survive for hours within the ocean floor's low - or no - oxygen muds, which are pervaded by poisonous hydrogen sulfide gas — an inhospitable place lacking any other vertebrate species.

With too much UV light, no water could persist on the surface because its molecules would break down into hydrogen and oxygen gas and escape through the atmosphere.

The reaction combines the hydroxyl molecule (OH, produced by reaction of oxygen and water) and carbon monoxide (CO, a byproduct of incomplete fossil fuel combustion) to form hydrogen (H) and carbon dioxide (CO2, a «greenhouse gas» contributing to global warming), as well as heat.

Consequently, massive amounts of reactive gases such as oxygen, hydrogen, and methane are continually being added to Earth's now «anomalous» atmosphere faster than they would otherwise be removed by inorganic chemical processes.

With little oxygen available to convert that hydrogen into water, hydrogen gas probably accumulated in the atmosphere and oceans in concentrations as high as hundreds to thousands of parts per million.

Eventually, Stars Aa and Ab will lose much of their current mass, from intensified stellar winds that eventually puff out their outer gas envelopes of hydrogen and helium (and lesser amounts of higher elements such as carbon and oxygen) into interstellar space as planetary nebulae.

Although atmospheric oxygen soon recovered again as photosynthesis and weathering reached a new balance, at about 10 per cent of present - day levels, the oxidative weathering of sulphides on land filled the oceans with sulphate which created abundant food for a group of bacteria that filled the oceans with sewer gas (hydrogen sulphide) toxic to oxygen - loving lifeforms (delaying the development of eukaryotic plants and animals) and turned them «into stinking, stagnant waters almost entirely devoid of oxygen.»

But in December 2012, when the ice moon was at its farthest point from the gas giant, they caught a pair of plumes bearing clear signs of oxygen and hydrogen — the components of water vapor — shooting from near the southern pole.

The hydrogen and oxygen gas can be stored separately, and later brought together as fuel in what is called a fuel cell.

Every gas (such as helium, hydrogen, oxygen, and so on) has a very specific set of frequencies that it absorbs.

When the star's ultraviolet radiation strikes the gases in the nebula, they heat up, giving out radiation ranging in wavelength from blue — emitted by hot oxygen in the bubble near the star — to yellow — emitted by hot hydrogen and nitrogen.

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.

«Without a membrane, the photoanode and photocathode are close enough to each other to conduct electricity, and if you also have bubbles of highly reactive hydrogen and oxygen gases being produced in the same place at the same time, that is a recipe for disaster,» Lewis says regarding his findings published in PNAS.

Essentially, the Caltech membrane for their artificial leaf only allows hydrogen protons to pass through, like an ion sieve, while hydrogen and oxygen gases are safely and separately expelled to use as fuels or oxidants.

At the photoanode side, water molecules are split into oxygen gas (O2), electrons and hydrogen protons through oxidation in the presence of sunlight and the thin film coating the team recently developed.

Presumably, the strong stellar wind emitted by giant stars eventually blows the titanium oxide out of the star's outer regions (along with hydrogen and helium gases and dust made of elements and molecules like carbon) into interstellar space, until vigorous convection brings out more titanium and oxygen that are created from nuclear processes deeper in the star.

The various colors in the picture arise from different chemical elements in the expanding gas, including hydrogen (orange), nitrogen (red), sulfur (pink), and oxygen (green).

The results quantify the nature of gas molecules containing carbon, hydrogen, and sulfur in the earliest atmosphere, but they shed no light on the much later rise of free oxygen in the air.

Composed of carbon, hydrogen, nitrogen and oxygen atoms (forming the CH3NCO molecule) a tragic methyl isocyanate gas leak caused thousands of deaths and injuries during what is considered to be the deadliest industrial accident in history — the Indian 1984 Bhopal disaster.