Hydrogen technologies are technologies that relate to the production and use of hydrogen as a part hydrogen economy. Hydrogen technologies are applicable for many uses. Some hydrogen technologies are carbon neutral and could have a role in preventing climate change and a possible future hydrogen economy. Hydrogen is a chemical widely used in various applications including ammonia production, oil refining and energy. The most common methods for producing hydrogen on an industrial scale are: Steam reforming, oil reforming, coal gasification, water electrolysis. Hydrogen is not a primary energy source, because it is not naturally occurring as a fuel. It is, however, widely regarded as an ideal energy storage medium, due to the ease with which electricity can convert water into hydrogen and oxygen through electrolysis and can be converted back to electrical power using a fuel cell or hydrogen turbine. There are a wide number of different types of fuel and electrolysis cells. The potential environmental impact depends primarily on the methods used to generate hydrogen as a fuel.

Fuel cells

Hydrogen infrastructure

Hydrogen storage

Hydrogen vehicles

Historic hydrogen filled airships

Hydrogen powered cars

Audi: BMW: Chrysler: Daimler: Fiat: Ford: Forze Hydrogen-Electric Racing Team Delft General Motors: Honda: Hyundai: Lotus Engineering: Kia: Mazda: Mitsubishi: Morgan: Nissan: Peugeot: Renault: Riversimple: Ronn Motor Company: Toyota: Volkswagen:

Hydrogen powered planes

Possible future aircraft using precooled jet engines include Reaction Engines Skylon and the Reaction Engines A2.

Hydrogen powered rockets

The following rockets were/are partially or completely propelled by hydrogen fuel:

Related technologies

Environmental

Nuclear

Organic chemistry

Miscellaneous