Sentences with phrase «activating oxygen molecules»

This process of activating oxygen molecules by adding electrons is ubiquitous — all living organisms use this trick, and modern fuel cells also work in this way.

Not exact matches

The same process also happens when the surface of the titanium oxide is irradiated with light — electrons are liberated inside the material, and can come to the surface to activate one of the oxygen molecules.

Gold / titanium dioxide catalyst in action: At the interface between a gold particle (Au, gold) and the titanium dioxide surface (TiO2, red and light blue), an oxygen molecule (O2, dark blue spheres) is activated by a charge transfer and becomes catalytically active.

Many, many investigators have contributed over the years to the development of a form of artificial photosynthesis in which sunlight - activated catalysts split water molecules to yield oxygen and hydrogen — the latter being a valuable chemical for a wide range of sustainable technologies.

Impulses — carried by certain molecules derived from oxygen, food and water — activate signals and messages that enable function to occur.

It adheres to a large and complicated molecule that activates it, and simultaneously receives the decisive message from the sky, in the flashing form of a packet of solar light: in an instant, like an insect caught by a spider, it is separated from its oxygen, combined with hydrogen and (one thinks) phosphorus, and finally inserted in a chain, whether long or short does not matter, but it is the chain of life.