In reply to Jones Beene's message of Tue, 30 Nov 2021 22:02:46 +0000 (UTC): Hi Jones,
Further to the Mills option: In an electrolytic cell both H and K will form at the cathode, though the K will only be short lived because it combines with water to form KOH & H. However if a K atom and an H atom form in close proximity to one another at the same time, then the possibility exists that the K will catalyze a shrinkage reaction of the H (m=3), before it combines with water. To facilitate this process, the KOH should be a saturated solution, and the cathode atoms as close together as possible. This is the case with Cobalt, so a Cobalt plated cathode may yield the best results. Zn is almost as good, and readily available from an old carbon-zinc cell. Zn may not fair well in a strongly alkaline environment, though it would have "cathodic protection". Regards, Robin van Spaandonk <[email protected]>
