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BY Tali Aaron : April 28

Hydrogen Storage in Small, Glass Capillaries May Give Boost to Greenest of Green Vehicles

hydrogen storage in glass capillaries


As the easy-to-produce and vastly renewable material used in hydrogen fuel cells, hydrogen seemed to be a no-brainer to power vehicles large and small. However, one major challenge is the sheer size and weight of the on-board hydrogen tanks the vehicles have to carry. If a team of Israeli scientists and businesspeople have their way, though, this may change.

Currently, vehicle hydrogen storage tanks are metal or of a composite material and look like giant scuba tanks. Israeli scientists at C.En Ltd. in Geneva, Switzerland, have developed a way to store hydrogen in a series of glass capillaries, each no larger than a human hair.

The bundled capillaries sit in a glass tube called a capillary array. At about the width of a drinking straw, 11,000 of these arrays will take up less than half the space and weight of current vehicle hydrogen tanks while still providing enough fuel to power a car for 240 miles.

Tank storage is just one of the hurdles facing large-scale hydrogen car production, but it is an important one. The capillary tube concept can go a long way to helping hydrogen cars really ‘hit the road’.

More on hydrogen fuel and storage:

MIT creates virus to split water molecules and produce hydrogen fuel
Hydrogen Fuel from water using crystals and sound
Hydrogen storage tanks could revolutionize Renewable Energy industry
Hydrofill Fuel Cell provides clean portable way to charge gadgets
Hydrogen fuel cell vehicles predicted at 2.8 million by 2020

image credit: Michael Sohn / AP

6 Responses to Hydrogen Storage in Small, Glass Capillaries May Give Boost to Greenest of Green Vehicles

  1. ONEIA Media on October 26, 2012 at 2:25 pm


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  3. Masanori on May 31, 2012 at 8:01 pm


    Hi matt,I'm not sure I'd bet good money on our bureaucrats veress yours in an obfuscation competition, but ours are enough challenge for me I'd also mention that, given our current political situation, we are very likely to follow whatever environmental/government path y'all set, so your heroic efforts in digging up this information are not only interesting on an intellectual level to this citizen of the States, but are likely to have practical value as well. While we may be riding in different ships, I suspect that our lunatic captains are in close communication. I have no idea whether it made your news yet, but our liberal candidate for President gave a speech today in which he promised to totally transform our economy into a green one if elected. A good deal of his proposal was dedicated to how labor unions would play a major role in the new reality, meaning that we would tax all foreign imports into a noncompetitive position in our markets. The rest was mostly about promising to tax Big Oil to pay for buying everyone a fuel efficient car and a new house with all the latest energy efficient technology. While this may be a good long term goal, or it may not, or eventually land that candidate in a mental institution, I'll give you fair warning now that our next Administration is quite likely to drag the world down into a very nasty depression. While I may be wrong (crossed fingers) it's always a good idea to have a few supplies tucked aside in case of hard times.Keep up the good work,the Grit

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  6. Fabio on July 15, 2010 at 10:49 pm


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