What is catalytic

One technology that needs a catalyst to work is a hydrogen fuel cell. In these devices, hydrogen gas H 2 reacts with oxygen gas O 2 to make water H 2 O and electricity. These systems can be found in a hydrogen vehicle where they create the electricity to power the engine.

The fuel cell needs to separate the atoms in molecules of hydrogen and oxygen so that those atoms can reshuffle to create new molecules water. Without some assistance, though, that reshuffling would take place very slowly. So the fuel cell uses a catalyst — platinum — to propel those reactions along.

Platinum works well in fuel cells because it interacts just the right amount with each starting gas. In effect, it pulls them close together so that it encourages — speeds along — their reaction. Then it lets its handiwork float free. For years, other technologies have relied on platinum catalysts, too. To remove harmful pollutants from exhaust gases, for instance, cars now rely on catalytic converters.

Accessed 13 Nov. More Definitions for catalytic. Nglish: Translation of catalytic for Spanish Speakers. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Log in Sign Up. Save Word. Definition of catalytic. Examples of catalytic in a Sentence Recent Examples on the Web Wyman points out the catalytic role of the Protestant Reformation in the spread of printing.

Ask a local garage to weld the bolts on your catalytic converter or use other commercial anti-theft devices that will make it harder to remove. History of the catalytic converter Catalytic converters have been around since the 19th century when metal cylinders containing filters coated in platinum, Iridium and palladium were fitted to early French motor cars in an attempt to clean up the smoke coming out of their exhausts.

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