Sentences with phrase «hydrogen and oxygen on»

This is a one step process with the cell emitting hydrogen and oxygen on exposure to sunlight.

Not exact matches

Nor is it particularly important to know the chemical composition of a man, except for the purposes of amusing or shocking audiences in popular lectures by telling them that they are so much hydrogen, oxygen, carbon, nitrogen, potassium, sulfur, and so on, worth one dollar and ninety - eight cents on the current market in chemicals.

That is a very dry world to live in... as far as theory is concerned it is as enigmatic as religous beliefs... Example 2 hydrogen and on oxygen make water... it is proven fact.

For example, a liver and a muscle are made up of the same material constituents - hydrogen, carbon, oxygen, and so on - acting on each other by the same basic forces.

Lunar water could be used for drinking or its components — hydrogen and oxygen — could be used to manufacture important products on the surface that future visitors to the moon will need, like rocket fuel and breathable air.

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.

A low - voltage current applied to the electrodes drives a catalytic reaction that separates molecules of H2O, releasing bubbles of hydrogen on one electrode and oxygen on the other.

The device uses solar electricity from a photovoltaic panel to power the chemistry that splits water into oxygen and hydrogen, then adds pre-starved microbes to feed on the hydrogen and convert CO2 in the air into alcohol fuels.

Unlike conventional water splitters, the Stanford device uses a single low - cost catalyst to generate hydrogen bubbles on one electrode and oxygen bubbles on the other.

Based on extensive forensic testing, its analysis of why the tank of pressurized oxygen, hydrogen, and carbon dioxide blew up is thorough, precise, and illuminating.

Shining blue light on the particles caused the haematite cubes to catalyse the breakdown of nearby hydrogen peroxide into water and oxygen.

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 200And 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 200and 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 200and heat as by - products [see «On the Road to Fuel - Cell Cars,» by Steven Ashley; Scientific American, March 2005].

He said the free electrons on the leaf's surface then interact with water, catalyzing its split into oxygen on the leaf's light side and hydrogen on the dark side.

Using a molecular dynamics code called NAMD, the team ran simulations of the wild lignin and the genetically modified lignin in a water cube, modeling the presence of the aldehydes by altering the partial charges of the oxygen and hydrogen atoms on the modified lignin's allylic site.

Chemist Daniel Nocera, head of the M.I.T.'s Solar Revolution Project, focused on one side of the equation: splitting water into its constituent hydrogen and oxygen molecules.

«That's what his advance is pointing towards,» he says, «finding an alternative catalyst that will allow us to do oxygen evolution (breaking the bonds of water or H2O and forming oxygen) in concert with hydrogen» on a grand scale.

The lander would refuel on the space station, and would utilize liquid hydrogen fuel, which would come from water molecules broken into their composite oxygen and hydrogen atoms.

During the Boring Billion, the planet's oceans were light on oxygen and heavy on toxic hydrogen sulfide.

MacDonnell also has worked on developing new photocatalysts for hydrogen generation, with the goal of creating an artificial photosynthetic system which uses solar energy to split water molecules into hydrogen and oxygen.

Of the two types of atom, oxygen has more pull on the electrons that they share to form the bonds between them, so the oxygen becomes slightly negatively charged and the hydrogens slightly positive.

Two - way fuel cells Meanwhile, Versa, a solid oxide fuel cell stack supplier, is working with Boeing and «a large European company» on an innovative reversible SOFC that cycles back and forth between providing power and electrolyzing water into hydrogen and oxygen, Stokes says.

The team based its analysis on ratios of oxygen and hydrogen isotopes in ice cores drilled in East Antarctica.

Mark, who focuses on the Andes region, developed a method of determining how much of a community's water supply is glacier - fed by analyzing the hydrogen and oxygen isotopes in water samples.

Such initiatives include research focused on more efficient production of gaseous hydrogen fuel by using solar energy to break water down into its components of hydrogen and oxygen.

As caterpillars grow, they take on a characteristic chemical signature of the environment, with hydrogen, oxygen and other elements fixed in tissues in varying amounts.

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.

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.

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.

On a yellow pad, Blackwell draws a portrait for me of a prototypical quorum - sensing signal molecule: a ring of carbon atoms attached to some hydrogen, nitrogen, and oxygen atoms, trailing off in a long tail composed of more carbon atoms.

«What people thought was happening is after the hydrogen atoms broke apart and they're adsorbed onto the palladium surface, that they just reacted with the oxygen on the surface.

His team put radio collars on the animals, injected them with water with heavy hydrogen and oxygen atoms so these elements could be traced, recorded the animals» behaviors, and collected their feces to check for how fast those atoms were used, an indicator of metabolic rate.

He added that using solar cells and abundantly available elements to split water into hydrogen and oxygen has enormous potential for reducing the cost of hydrogen production and that the approach could eventually replace the current method, which relies on fossil fuels.

The loss of hydrogen, in turn, upset the balance of elements back on Earth and 400 million years later produced an oxygen glut.

Regardless, the simple fact that hydrogen — and oxygen — in some form are on the moon makes a lunar base a simpler proposition.

Scientists suspect water on the surface of Mars evaporates, rises into the upper atmosphere, breaks into hydrogen and oxygen atoms, and is then swept into outer space by the solar wind.

Joe Reiss, vice president of marketing at manufacturer American Science and Engineering (AS&E) in Billerica, Mass., says low - atomic - number elements such as carbon, oxygen, hydrogen and nitrogen — common constituents of explosives — create a strong scattering effect visible in images that operators monitor on a screen yet discernible from the organic molecules in the human body.

The new device relies on a metallic blend of nickel and nickel oxide nanostructures, which help split water into oxygen and hydrogen fuel.

Gibbons adds that millions of years of adaptation to low - oxygen waters allowed the goby «to capitalize on the changes to the system — both increased hypoxia and [hydrogen sulfide] as well as the jellyfish.»

When the hydrogen runs out, the star's core collapses in on itself, contracting until it becomes hot enough to burn its own ashes — the core now fuses helium into the heavier elements carbon and oxygen.

The appearance of the plumes in this graphic is based on spectroscopic observations of oxygen and hydrogen in the auroral emissions.

Once there it will produce propellant on Mars itself, either by distilling carbon dioxide from the atmosphere and mixing it with hydrogen brought from Earth to generate methane and oxygen or by electrolyzing water from the permafrost to make liquid hydrogen and oxygen.

Many researchers investigate how hydrogen and oxygen come together and chemically react on regions of the catalyst's surface called active sites.

MAVEN focuses on hydrogen and oxygen as ways to trace water and carbon dioxide, and neutral argon as a way to measure the sheer volume of atmosphere loss.

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.

At the fringes of space, the dual - mode power plant would switch to a conventional rocket engine, drawing on the liquid hydrogen and a small supply of liquid oxygen to propel the winged craft into orbit at a final speed of Mach 25.

(Organic molecules contain carbon and hydrogen, and often include nitrogen, oxygen and other elements important to life on Earth.)

The researchers discovered that the unique manner in which the platinum and nickel atoms arrange themselves on the surfaces of these particles serves to optimally accelerate the chemical reaction between hydrogen and oxygen to form water.

The near - infrared mapping spectrometer on NASA's Galileo spacecraft found evidence of the presence of molecules made of oxygen, carbon, sulfur, hydrogen, and nitrogen on Europa, and a hint of the presence of a class of complex organic compounds called tholins which may be driven by pre-biotic processes (more).