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Topic Name: 9 liters of hydrogen in a box of matches
Category: Fuel Technology
Research persons: Shin-ichi Orimo
Location: Tohoku, Japan
Details
Professor Shin-ichi Orimo the Institute for Material Research of Tohoku University has developed in collaboration with Japan Steel Works a reservoir the size of a box of matches could release up to 9 liters of hydrogen.
Hydrogen is stored in a tank made of aluminum in the form of aluminum particles hydrogenated molecule developed by the research group. When heated to 80 ° C compound releases hydrogen as a gas. Experimentally, it was 9.3 liters of
extracting hydrogen from a tank measuring 4 x 6 cm and a thickness of 5.5 mm. This represents a more than 43% compared to the lanthanum-nickel alloy (LaNi5) used for storing hydrogen. The group hopes to improve the properties of the
system so that the hydrogenated aluminum gas releases to 60 ° C, allowing direct use of heat released by electronic devices and therefore a feed fuel cell portable instruments such as phones or computers. Once the hydrogen has been
released, there is no more than aluminum. This process is irreversible, the tanks would be used as single-use cartridges. The application of technology will be earlier than three years.
Japan Steel Works also hopes to use this technology to develop reservoirs intended for vehicles with fuel cells. A volume, this method would store 3.6 times more hydrogen tanks pressurized to 35 MPa. The distance may then reach 650km for a tank of 90 liters that can weigh 100 kg, instead of 220 kg at present.
The main challenge to the spread of fuel cells is the storage and transport of fuel. Methanol is affordable but its transportation is difficult because it is a body flammable. On the other hand, alloys of nickel-type lanthanum can store
hydrogen in a relatively safe but have the disadvantage to weigh heavy. All alternatives remain to be considered.
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nickel-type lanthanum can - hydrogen - - |
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