Comment by PaulHoule
A big research area, see "Turquoise Hydrogen"
https://www.aga.org/its-time-to-pay-attention-to-turquoise-h...
in contrast to "Grey Hydrogen" [1] made by steam reforming
https://en.wikipedia.org/wiki/Steam_reforming
The self-taught ChemE in me worries a little about any process that makes a solid product since that product could plate out inside the machine and clog it up, but maybe that's not really a problem here.
[1] "Blue" if you capture the CO2
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