Can Aerogels be Used for Hydrogen Storage?

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Discussion Overview

The discussion centers on the feasibility of using aerogels for hydrogen storage, exploring both theoretical and practical aspects of this application. Participants consider the properties of hydrogen, potential methods for storage and release, and the challenges associated with aerogel technology.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants inquire about the possibility of storing hydrogen in aerogels and the existence of catalysts for releasing it.
  • One participant suggests that while aerogels could theoretically store hydrogen, they may not retain it effectively due to hydrogen's ability to diffuse through materials.
  • Another participant proposes a method involving impregnating hydrogen into aerogel, sealing it, and then using a vacuum to release the hydrogen, although they acknowledge the high cost of aerogel production.
  • There are considerations regarding the use of conductive metals like platinum nickel for hydrogen production and energy conservation.
  • One idea involves using a solvent basin with a vacuum system to manage the spent aerogel and facilitate recharging.
  • Participants discuss the need for a suitable sealant that can withstand the process without creating complications during dissolution.

Areas of Agreement / Disagreement

Participants express varying opinions on the practicality and effectiveness of using aerogels for hydrogen storage, with no consensus reached on the viability of the proposed methods or the overall feasibility of the concept.

Contextual Notes

Participants mention limitations such as the high cost of aerogel production and the need for further research into effective sealants and vacuum systems. The discussion reflects ongoing uncertainty regarding the best methods for hydrogen storage and release.

DesertSands
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Does anyone know if it is possible to store hydrogen in aerogels?
 
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If so, is there a known catalyst that will free the hydrogen?
 
Yes, but it would not likely retain the hydrogen very long or at all. Hydrogen can diffuse through solid metal, hydride technologies are a much better option. If you were to use aerogel you would probably have to inpregnate hydrogen into it, seal it, seal it again, then to release it you would have to dissolve the sealent, and place it under a vacuum to get all the hydrogen out, good idea though.
http://en.wikipedia.org/wiki/Hydrogen_economy
Aerogel is better suited to applications like supercapicators, thermal insulation ect.
 
I have been trying to devise a possible outcome where it would be possible to apply 8.2Kg or there abouts into an aquivilant to 60 Litre tank or cell. Depending on design requirements. I have looked into the properties of Hydrogen and it's retention properties with applications such as diamond film studied by Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, various metal alloys studied by various universities and even research by the Oiho University of a form of Polymeric foam which was partially funded by DaimlerChrysler to understand the most effective method to date.
To date I realize that the best form of conductive metals available is platinum nickel which produces the most amount of Hydrogen while conserving the most energy.

So I thought perhaps with aerogel having an awesome property which would allow 95-99% storage capacity for hydrogen gas being as mentioned above inpregnated into the aerogel, it would have the most logical application for Hydrogen.

Problem is of course aerogel is very costly at the moment to produce until it's application for other areas are realized by industry and also I haven't heard of anyone trying this as yet for a hydrogen application.

Any ideas?
I like the idea of the sealant and applying a kind of vacuum to it, perhaps a carborator could achieve the vacuum?

Cheers
 
Have chunks of hydrogen impregnated aerogel in a holding container with an auto feeding system into a basin of solvent with a vacuum drawn on it. After so long the spent aerogel, still under a vacuum, go to a separate holding container to be recharged later. The sealnt would need to be a material that would dry hard and strong yet when dissolved not form a gel, or a sticky mess when you want to change it out.

A specially designed carburator would be the best but a regular carburator, provided some holes are pluged, would work.
 

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