Hello,
recently I found out, a possibility to make a cheap high-power fuel cell that uses sodium ascorbate as fuel, because it readily oxidizes with dissolved air. Even thought it works great, I'd like to increase the stability of the alkaline (0,5M NaOH) aqueous solutions for long term storage and rechargeability. Any ideas how to increase the stability of especially the sodium dehydroascorbate? I have read multiple times about dehydroascorbic acid decomposition, I think the sodium salt will give it a bit more stability, but I'd like to store it for like a few years.
Thanks very much,
regards,
André Leonhardt
This will probably decrease the stability of DHA. DHA becomes more unstable at high pH. I discovered just yesterday that acid stored in a small -20 lab freezer had degraded significantly, although of course it was subjected to temperature fluctuations from having that freezer open. I believe this is the main reason it is not sold in this form commercially.
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