«You start with water, add energy to
split the oxygen and hydrogen molecules apart, and get H2.
Not exact matches
Elements
and compounds below the surface could be used to create fuel, including water, which can be
split into useful
hydrogen and oxygen.
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.»
Kesterites acting as photocatalysts might be able to
split water into
hydrogen and oxygen using sunlight,
and to store solar energy in the form of chemical energy,» explains Schorr.
The current
splits water molecules into
oxygen and hydrogen,
and bacteria in the water transform carbon dioxide
and hydrogen into fuels or other useful chemicals.
Nocera had been working on a «bionic leaf» in which solar panels provide the energy to
split water into
hydrogen and oxygen gases.
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.
Researchers have used cobalt oxide nanoparticles to
split water into
hydrogen and oxygen.
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.
Clean renewable energy can be produced by photocatalytically
splitting water into
hydrogen and oxygen with solar energy.
Their research, published online Sunday in Nature Nanotechnology, involved the use of cobalt oxide nanoparticles to
split water into
hydrogen and oxygen.
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.
«
Splitting water usually requires two different catalysts, but our catalyst can drive both of the reactions required to separate water into its two constituents,
oxygen and hydrogen,» says study leader Associate Professor Chuan Zhao.
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 excess energy from renewable energy resources such as solar
and wind to
split water into
oxygen and hydrogen — a process called electrolysis — could be the best solution for creating large supplies of sustainable
hydrogen fuel.
An electrolyzer works by running an electrical current through water that
splits it into
oxygen and hydrogen.
An
oxygen - evolution catalyst
splits water into
hydrogen and oxygen.
Rice University scientists have created an efficient, simple - to - manufacture
oxygen - evolution catalyst that pairs well with semiconductors for solar water
splitting, the conversion of solar energy to chemical energy in the form of
hydrogen and oxygen.
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.
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.
One of the simplest ways of obtaining
hydrogen is electrolysis: an electric current
splits water molecules into their constituent
hydrogen and oxygen atoms.
But when Ilsedore Cleeves at the University of Michigan
and her team created a model of the early sun they found this couldn't have happened: once the ice was
split, the
oxygen became locked in frozen carbon monoxide
and not enough ionised, deuterium - rich
hydrogen was made.
Natural photosynthesis uses light energy to
split water into its constituent
oxygen and hydrogen.
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.
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.
Plants have the renewable energy storage problem pretty well figured out: Capture photons from the sun, use them to
split water into
hydrogen and oxygen to make sugars, then extract the energy from the sugars when it's needed.
An alternative device, called an electrolyzer, uses solar - generated electricity to
split water into clean
hydrogen and oxygen, but the technique is very energy intensive
and expensive.
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.
When sunlight hits the electrode, it generates an electric current that
splits the water into its constituent parts,
hydrogen and oxygen.
Water could also be
split into
hydrogen and oxygen for use as rocket fuel.
A key aspect of this process involves
splitting water into
oxygen and hydrogen.
University of Houston physicists have discovered a catalyst that can
split water into
hydrogen and oxygen, composed of easily available, low - cost materials
and operating far more efficiently than previous catalysts.
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 device developed at UCLA has a third electrode that acts as both a supercapacitor, which stores energy,
and as a device for
splitting water into
hydrogen and oxygen, a process called water electrolysis.
One group used this type of catalyst to
split water into
hydrogen and oxygen; the other one was
splitting carbon dioxide into carbon monoxide
and oxygen.
Yet without a protective magnetic field to shield the surface, ionizing radiation started
splitting water molecules into
hydrogen and oxygen.
How the «moth eye solar cell» functions: with the help of sunlight water molecules are
split into
oxygen and hydrogen.
An applied electric current
splits the water into
hydrogen and oxygen,
and under the right conditions, lithium or potassium then acts as a catalyst to absorb energy
and collapse
hydrogen's electron orbit.
The researchers offered possible electrochemical processes that might explain the heat, including irregularities in the electrochemical cell, possible unknown exothermic chemical reactions, or the recombination of
split - apart
hydrogen and oxygen atoms of water.
The new device relies on a metallic blend of nickel
and nickel oxide nanostructures, which help
split water into
oxygen and hydrogen fuel.
Anthony Griffin, a retired Royal Navy admiral, described patented apparatus developed in the US to perform the supposedly impossible task of
splitting water with a tiny current into
hydrogen and oxygen, which can be burnt.
Which
splits water into
oxygen and the constituents of
hydrogen, a proton
and electron.
One main goal in the renewable energy field is to find an efficient, inexpensive way to
split water into
hydrogen and oxygen.
In this case, a solar panel slightly bigger than a playing card harnesses the sun's energy to generate an electric current that
splits water into
oxygen and hydrogen — a process known as electrolysis.
This aurora is driven by Jupiter's intense magnetic field, which causes particles to reach such high speeds that they can
split the water molecules in the plume when they hit them, resulting in
oxygen and hydrogen ions which leave their telltale imprint in the colours of the aurora.
Light comes in four photons,
and then it hits the leaf,
and it
splits water into
oxygen and hydrogen.
It turns out that water contained in some minerals that get pulled down into Earth due to plate tectonic activity could, under extreme pressures
and temperatures,
split up — liberating
hydrogen and enabling the residual
oxygen to combine with iron metal from the core to create a novel high - pressure mineral, iron peroxide.
Splitting water into its constituent
hydrogen and oxygen elements is an important starting point for the development of clean renewable fuels.
Stone's proposed venture would create rocket fuel by melting water ice from the moon's soil, purifying it (exactly how, he says, is a trade secret),
and splitting it into
hydrogen and oxygen, perhaps using a solar - powered electrolysis system.