Yes, CO2 is easy, I do hundreds of 2-liter bottles off one 5 pound
cylinder of CO2.  Actually, just making HCl  (hydrochloric acid
(muriatic acid (what's in your stomach))) gives lots of free hydrogen
ions with the downside of an equal number of free chlorine ions.  Not
sure you could split diatomic hydrogen (H2) to get free ions in the water.

On 03/30/2016 01:03 PM, Evan Jones wrote:
>
> Hydrogen water seems a bit hard to swallow. Carbonated fizzy drinks
> consist of  CO2 dissolved in water. The fizziness in your drink is the
> CO2 coming out of solution as the water warms up. CO2 is not very
> soluble in water. Water just above freezing can hold 3.5grams /liter.
> At room temperature this drops to 1.5g/liter. Thus the bubbles.
>
> Freezing cold water can hold 20milligrams/liter of hydrogen. Less than
> one thousandth that of CO2. So the stuff seems to be hype.
> http://www.engineeringtoolbox.com/gases-solubility-water-d_1148.html
>

-- 
Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886