Hydrogen generation by this method proceeds at 65 — 95... Read more →
Not exact matches
Because all elements in the universe heavier than
hydrogen, helium, and lithium have been forged
by nuclear fusion in the cores of stars and then scattered into space
by supernova explosions, the find indicates that the galaxy, at the age we're now observing it, was old enough for at least one
generation of stars to have formed, lived, and died.
Typical
hydrogen storage materials are limited
by factors like water sensitivity, risk of explosion, difficulty of control of
hydrogen -
generation.
Electrolyzers could effectively serve as energy storage
by using that excess
generation to make renewable
hydrogen.
More than 80 % of the incident visible sunlight was photoelectrically converted
by this composite system into electric current available for the
hydrogen generation,» says Schedel - Niedrig.
But
by building on the basic step of achieving such high quantum efficiency for solar
hydrogen generation, we could make the process of producing a «green» fuel much greener as well.»
By 2004, BP was styling itself «Beyond Petroleum,» and GM was predicting a new generation of cars and trucks powered by hydrogen, «where the only emission is water vapor.&raqu
By 2004, BP was styling itself «Beyond Petroleum,» and GM was predicting a new
generation of cars and trucks powered
by hydrogen, «where the only emission is water vapor.&raqu
by hydrogen, «where the only emission is water vapor.»
Many now believe that most, if not all, of the first
generation of stars (Population III) that formed from the gas and dust created
by the Big Bang were massive, fast - burning, short - lived, and composed only of the four lightest elements,
hydrogen and helium with traces of lithium and beryllium.
• CdS nanostructure excels for
hydrogen generation (Mar 2018) • Atomic layer deposition — tooling up nanotechnology step
by step (Feb 2016) • Graphene meets the standard for industry (Mar 2018)
The i8's carbonfibre construction remains, but the petrol - electric hybrid system in the current
generation road car has been reapleced
by a
hydrogen fuel cell.
Available to be powered
by electricity, gas or — if in California —
hydrogen, the newest
generation Clarity is all about options.
Available to be powered
by electricity, gas or — if in California —
hydrogen, the newest
generation Clarity is -LSB-...]
The 2005 Honda FCX, Honda's second -
generation,
hydrogen - powered fuel - cell vehicle, has been certified
by the Environmental Protection Agency and the California Air Resources Board for commercial use.
Chicago area drivers now have reason to be especially excited about the potential for vehicles that use fuel cells, since Honda and GM have recently announced a partnership to co-develop next -
generation fuel cell and
hydrogen - storage technologies
by 2020.
The Provoq has a sleek, athletic shape that builds on the second
generation of Cadillac's design renaissance, led
by the 2008 CTS, with dynamic and purposeful features that support the
hydrogen fuel cell powertrain and contribute to the vehicle's overall efficiency.
(Though some have claimed in this thread that the balance of O2
generation may be related to the reduction of
hydrogen by gravitational loss; most of the isotopic record still suggests that the balance of O2 appears to have a biologic influence and was not the result of planet wide respiration of H2.)
By targeting petroleum - derived gasoline and diesel and promoting low - carbon alternative energy forms such as electricity,
hydrogen, natural gas and next
generation biofuels, LCFS programs are intended to reduce overall greenhouse gas (GHG) emissions on a «well - to - wheels» basis.»
The new
generation of
hydrogen storage solutions has tried getting round these problems
by squeezing
hydrogen into solid composite materials.
However, it concluded that «construction of additional compressed air and
hydrogen storage facilities will not occur as driven
by the market
by 2020 due to economic aspects and the existing market regulations, in spite of the increasing volatility of
generation and the associated electricity price fluctuations.
This is because it is a relatively straightforward calculation to predict the boil - down time to when the fuel is uncovered (several days) at which the risk of
hydrogen generation and deflagration occurs, so just why the simple and obvious expedient of providing cooling water via a temporary pump (i.e. a fire tender) was not implemented
by TEPCO in a timely manner is baffling.