The technical paper linked from the article[0] explains how this is done. The electrolysis of urea does compete with the electrolysis of water, but it happens

The technical paper linked from the article[0] explains how this is done. The electrolysis of urea does compete with the electrolysis of water, but it happens at a lower voltage. [0] http://www.suttonfruit.com/pics/urea_electrolysis.pdf http://www.suttonfruit.com/pics/urea_electrolysis.pdf edit: grammer