Hydrogen from Urea Toilets

Post date: Jan 1, 2010 8:51:23 PM

Ohio University

researcher Gerardine Botte had developed a catalyst that could extract hydrogen fuel from urine much more cheaply than water.

Nickel-based Electrode 0.37 Volt

Botte developed a cheap new nickel-based electrode that was able to selectively and efficiently oxidize urea to break apart the molecule to get hydrogen out. Not only was the electrode cheaper, but by using urea instead of water,

she got twice the hydrogen at a third of the effort.

Only 0.37 volts were needed to strip urea’s four hydrogen atoms because they are not as tightly stuck together as the two hydrogen atoms in water. So: hydrogen fuel breakthrough

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