urea, which incorporates four hydrogen atoms per molecule --
Twice the amount of hydrogen found in water, and it needs 0.37V
to free those atoms. Not the 1.23V needed to split water. Every port-a-potty just became a power plant.
That’s a revolution . You can run the Empire State Building on the pee from everyone who comes to visit it.
That headline smacks of “Car runs on Water” . So I was pretty doubtful of the story, but when I learned that the Maker Movement was in Africa, and these 4 teenagers were part of it. I sat up at the keyboard. A commenter on NewsVine, james ca., came up with the 2009 paper , that made these girls invention work. The chemistry is bullet proof.
As the news cycle flowed on, I found a a much better picture of them with their invention. ……. (Links below)
So I got to thinking , this will fit in a “ShelterBox”
So in a disaster, one of these boxes can charge laptops, and provide light. And the victims just have to pee in it to get power. This is a very “green thing”, these 4 girls have done.
They’re burning hydrogen , zero CO2 output to make electricity. And it runs on urine .
All of this adds up to being greater than the sum of the parts. Tesla made “Car of the Year” at the same time we learned of these 4 girls in Africa.
The girls and their invention :
The 2009 paper behind their work :
Producing hydrogen from urine
July 3, 2009
Gerardine Botte of Ohio University uses an electrolytic approach to produce hydrogen from urine -- the most abundant waste on Earth -- at a fraction of the cost of producing hydrogen from water. Urine’s major constituent is urea, which incorporates four hydrogen atoms per molecule -- importantly, less tightly bonded than the hydrogen atoms in water molecules. Botte uses electrolysis to break the molecule apart, developing an inexpensive new nickel-based electrode to selectively and efficiently oxidise the urea. To break the molecule down, a voltage of 0.37V needs to be applied across the cell -- much less than the 1.23V needed to split water. Her work is described in the Royal Society of Chemistry journal Chemical Communications. “During the electrochemical process the urea gets adsorbed on to the nickel electrode surface, which passes the electrons needed to break up the molecule,” Botte told Chemistry Worl