I believe you are mistaken in this case. The technical paper, linked from the article, will explain better then I can: http://www.suttonfruit.com/pics/urea_elec

I believe you are mistaken in this case. The technical paper, linked from the article, will explain better then I can: http://www.suttonfruit.com/pics/urea_electrolysis.pdf http://www.suttonfruit.com/pics/urea_electrolysis.pdf