Electrolysis of Seawater with titanium

Discussion in 'Boat Design' started by mtumut, Jan 24, 2010.

  1. mtumut
    Joined: Mar 2005
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    Location: ISTANBUL

    mtumut Junior Member

    I am researching to stay alive at sea for 1 year. I have extremelly short boat designs in my mind and I am preparing for lost at sea for 1 year or less.

    I am not saying this passage will not exceed 5 months but I scare from the things can happen , I am roping my horse to the stong tree.

    I found wave energy , wind energy , solar energy can help me but I am thinking that I need something directly engineered for production 2 liters drinking water per day. By the way , I will carry a survivor 06 also.

    Long time ago someone said here , electrolysis of sea water do not produce drinkable water. But I found that titanium electrodes are advertised for making drinking water from seawater at chinese sites but they are big parts and I dont know how to use them . If I talk with chat programs at alibaba com , i know they will only try to sell .

    And I found below article also.
    I did not understand it but I am sure you do.



    Photoassisted Electrolysis of Water by Irradiation of a Titanium Dioxide Electrode
    Mark S. Wrighton*, David S. Ginley, Peter T. Wolczanski, Arthur B. Ellis, David L. Morse, and Arthur Linz†
    + Author Affiliations

    1Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Mass. 02139
    Abstract
    Ultraviolet irradiation (351, 364 nm) of the n-type semiconductor TiO2 as the single crystal electrode of an aqueous electrochemical cell evolves O2 at the TiO2 electrode and H2 at the Pt electrode. The gases are typically evolved in a two: one (H2:O2) volume ratio. The photoassisted reaction seems to require applied voltages, but values as low as 0.25 V do allow the photoassisted electrolysis to proceed. Prolonged irradiation in either acid or base evolves the gaseous products in amounts which clearly demonstrate that the reaction is catalytic with respect to the TiO2. The wavelength response of the TiO2 and the correlation of product yield and current are reported. The results support the claim that TiO2 is a true photoassistance agent for the electrolysis of water. Minimum optical storage efficiencies of the order of 1% can be achieved by the production of H2.

    Thank you ,

    Mustafa Umut Sarac

    Istanbul
     
  2. CDK
    Joined: Aug 2007
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    Location: Adriatic sea

    CDK retired engineer

    Google for "Mustafa prank"
    You must be there somewhere!
     
  3. haru
    Joined: Jan 2010
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    Location: Terra

    haru Junior Member

    Sorry to say it, but this sounds like Robinson Crusoe fantasy to a modern human. There are plenty of survival handbooks to look up but chances aren't high you will endure that long.

    Anyway, the research paper is about a high efficient solar technology, which is very expensive and bulky. It's not for producing water perse.
     
  4. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Typical high teck overdone project. Two liters a day will give you kidney failure much before the year is up. Plastic tanks are the cheap, easy way to carry water. Tarps collect rain water. A hand cranked water maker will make at least two liters an hour.
     
  5. haru
    Joined: Jan 2010
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    haru Junior Member

    It seems he meant only for drinking, no washing, shower or cooking.
    Plastic tank often has some odor, a metallic one offers more options.
    Using any tech means they won't last long without servicing, replacing, etc.
    Good old burning wood is best if there are enough trees around. :lol:
     
  6. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Water tanks made of the proper plastic have no taste at all.
     
  7. haru
    Joined: Jan 2010
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    Location: Terra

    haru Junior Member

    Maybe, but try to have hot water in them. On the other side you can use a metallic tank to boil water in a fire. ;)
    Anyway, since everyone has to serve once in the military over there he should know this.

    Lets talk more tropical survival techniques:
    -how to open a coconut: take a drill an drill two holes then suck on one. :lol:
     
  8. apex1

    apex1 Guest

    Hi Mustafa!

    Is your Kennel door open again, nice they leave you play with a computer from time to time. It can be so boring in the Zoo, is´nt it?


    peers

    look here:

    http://www.boatdesign.net/forums/boat-design/look-soviet-manufacturer-cylinder-steel-boat-27527.html

    http://www.boatdesign.net/forums/bo...il-no-radio-currents-planktons-sun-27526.html

    http://www.boatdesign.net/forums/boat-design/wave-wind-power-piezo-electric-boat-29077.html

    ....and you know the real meaning of "completely nuts":cool:

    Regards
    Richard
     
  9. haru
    Joined: Jan 2010
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    Location: Terra

    haru Junior Member

    This thread should be merged to the other one.
    Seems more fun. <3
     
  10. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Come on guys. He is planning to be lost at sea with a horse tied to a strong tree. That is the best plan I've ever heard of.
     

  11. haru
    Joined: Jan 2010
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    Location: Terra

    haru Junior Member

    Well, having a horse as regenerative food and power source is new. :lol:
     
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