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Q about current article: On-demand Hydrogen Generation : ACS Nano Letters

  1. Jan 22, 2013 #1
    Here is the abstract: http://pubs.acs.org/doi/abs/10.1021/nl304680w

    I would need to pay the $35 so I have not read the full text.

    Question: it says "...without Light, Heat, or Electricity." Where is the energy required to split the water molecules coming from?

  2. jcsd
  3. Jan 23, 2013 #2


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    Science Advisor

    2H2O +Si -> SiO2 +2H2

    This reaction is very exothermic due to the high energy of formation of SiO2.
  4. Jan 23, 2013 #3


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    Staff: Mentor

    In a way it is not much different from using Al/Ga alloy for the same purpose.
  5. Jan 23, 2013 #4
    Thank you both. I foolishly thought they might be claiming some kind of catalysis. I saw the error of my ways soon after posting.
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