Talk:Electrolysis of water

This article is more about producing hydrogen using electrolysis than about electrolysis itself

I came to this article out of curiosity about producing OXYGEN from seawater, however this article only seems to deal with hydrogen production, and mostly glosses over the production of oxygen. I do not have the knowledge to improve it, Someone please fix this article to provide a more complete picture of the process. Drn8 (talk) 19:30, 29() May 2013 (UTC)

While my main intrest in electrolysis of water is for hydrogen fuel I have learned a little about oxygen over the years. The most important thing to know is that, with salt water, the reaction produces poisonous clorine gas at the + electrode, the same electrode where the oxygen is produced. For more info see electrolysis of brine.WertMooMoo (talk) 12:03, 19() July 2013 (UTC)

Water Powered Cars

Perhaps this article should contain a section debunking the "water powered car" myths. I'm talking about sites that claim you can take an electrolysis cell and hook it into your car battery and increase your fuel economy or even run your car. Some claim that an oscillator increases production to necesary levels, others may claim different things, but they are all lies. This reaction is endothermic so it always takes in more energy than it puts out, so you could never run a car off it in real time or get any increase in fuel economy from the power of the hydrogen being combusted. The car's battery power comes from the alternator(it charges the battery), the alternator's power comes from the engine running, the engine's power comes from, in this case, hydrogen from a cell that takes in more energy than it puts out, so the engine could never be fueled this way. But don't get me wrong, I do know that a cell powered by an outside source(like a wall outlet) could produce hydrogen to fill a pressure tank that could fuel a car.WertMooMoo (talk) 10:36, 6() December 2013 (UTC)

It should not contain any of it, all the fake science is contained to Water-fuelled car is the consensus. Mion (talk) 12:15, 6() December 2013 (UTC)

Thanks, I didn't even know about that page.WertMooMoo (talk) 07:54, 8() December 2013 (UTC)

Shouldn't the reduction potential be that of the species water being reduced and not H⁺?

Water does not contain 1 M H⁺. According to Chemistry, 10th Ed. Zumdahl et al, the electrolytic cell reaction should be:

Anode (oxidation):	2 H2O(l)	→	O2(g) + 4 H+(aq) + 4e−		Eo = -1.23 V
Cathode (reduction):	4 H2O(l) + 4e−	→	2H2(g) + 4OH-(aq)		Eo = -0.83 V