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Alane is one of the classes of materials known as chemical hydrogen storage materials. Like metal hydrides, chemical hydrogen storage materials provide a solid-state storage medium for hydrogen.

With very few cost and technical issues limiting commercialization and deployment, hydrogen powered vehicles can help create the demand needed to support the development of a hydrogen refueling infrastructure. The taxis will be refueled on site using technology supplied by Air Products.

"Hawaii is on the cutting edge of developing the infrastructure for hydrogen-powered vehicles and adopting the latest clean energy technologies to move our islands toward energy independence and sustainability," said Richard Lim, acting director, state Department of Business, Economic Development and Tourism. "H2I is a unique, innovative partnership that has brought together public, private and community partners to improve the quality of life for our citizens and become a worldwide model."

Using a common metal most famously found in self-cleaning ovens, Sossina Haile hopes to change our energy future. The metal is cerium oxide-or ceria-and it is the centerpiece of a promising new technology developed by Haile and her colleagues that concentrates solar energy and uses it to efficiently convert carbon dioxide and water into fuels.

The B-Class F-CELL combines a high, emission-free range of around 400 km with short refilling times and as such is highly suitable for both everyday use in urban areas as well as longer journeys. At the heart of the B-Class F-CELL is the new-generation electric drive system powered by a fuel cell, which is compact, powerful, safe and fully suited to everyday use. The fuel cell generates the electrical power on board from a chemical reaction between oxygen and hydrogen.

Currently the system uses only one photon at a time, but a two-photon system, while more complicated, would be more effective in using the full spectrum of sunlight.

Organic chemicals are a broad class of substances that contain carbon and its derivatives. Generally, the majority of them contain hydrogen with or without oxygen, sulfur, nitrogen, phosphorus, and other elements. Most of these are derived from crude oil (oil), coal, or other renewable natural sources.