New Solar Fuel Machine Turning The Sun's Energy Into Fuel

A prototype unit has been exposed as solar mimics plant life, transform solar energy into fuel.

The device uses the sun's rays, and the metal, called to break up the carbon dioxide, water and fuel ceria which can be stored and transported.

Conventional solar panels have to use the electricity generated in situ, and can not provide power at night.

Details are published in the journal Science.

The prototype, which was developed for researchers in the United States and Switzerland used a quartz window and the cavity to concentrate the sunlight cylinder coated with cerium oxide, also known as ceria.

Ceria has a natural tendency to breathe oxygen as it warms up and inhale as it cools.

If, as in the prototype, carbon dioxide and / or water is pumped into the vessel, ceria quickly strip the oxygen from them as it cools, the hydrogen creation and / or carbon monoxide.

Hydrogen produced can be used to power hydrogen fuel cells in cars, for example, when the combination of hydrogen and carbon monoxide to create a "syngas" as fuel.
This is to improve the properties of cerium oxide in the solar reactor is a major breakthrough, the inventors say the device. They also say the metal is easily accessible, the most abundant of the "Rare Earth" metal.

The prototype is totally inefficient fuel use is only between 0.7% and 0.8% of solar energy in the tank.

Most of the energy lost by the loss of heat through the reactor wall or by re-radiation from the sun back through the opening of the device.

But scientists are convinced that the efficiency of up to 19% can be achieved through better insulation and smaller openings. How effectiveness rates, they say, could contribute to a sustainable business unit.

"The chemistry of the material is well suited to this process," said Prof. Sossin Haile of the California Institute of Technology (Caltech). "This is the first demonstration that complete the whole thing, that runs on (light) in a photon reactor."

She said the reactor could be used to create transport fuels or adopted in the factories of large-scale energy, where solar energy could be home all day and night.
However, he admits that the destination of this and other devices in development is tied to whether states adopt a policy of economy, low carbon.