Introduction to hydrogen production

Alkaline Water: Help or Hype for Uric Acid and Cystine Urolithiasis?

“…1 The cathode and anode compartments are separated by an impermeable membrane that prevents the mixing of the hydroxide ions on the cathode side and the hydrogen ions from the anode side, allowing for the isolation of water with a pH between 8 and 10. 2…”

Industrial decarbonization via hydrogen: A critical and systematic review of developments, socio-technical systems and policy options

“…• For existing thermochemical production pathways, decarbonizing hydrogen production will rely on adoption of renewable and waste feedstocks [42,71,148,149,187], use of CCS technologies [162,171,[188][189][190], switch to renewable and nuclear energy [191], or a combination of these interventions [152,161,169,182,192]; • In case thermochemical production coupled with CCS technology does not meet regulatory criteria for classification as low-carbon hydrogen (further discussed in Section 6) or are unacceptable for other reasons, methane pyrolysis and hightemperature electrolysis may be suitable for hydrogen production with high heat processes [43,80,81,123,128,179,193,194]; • Electrolysis produces high-purity hydrogen and can be directly used for fuel cell applications (electric vehicles, electricity generators, distributed heat and power units) [120,[195][196][197]; • Biohydrogen pathways have much lower hydrogen production yields than other alternatives and will therefore have niche applications when coupled with the treatment of wastewater and industrial effluents, as well as the uptake of recalcitrant biomass feedstocks [86,93,102,138,172,[198][199][200][201]; • Renewable energy availability (in particular solar and wind energy) will impact technology adoption…”

HyPIR Electrolysis for a 0.25 M Epsom Salt Solution

“…The formation of copper sulfate consumed the copper electrode and formed a precipitate. These undesirable results can be eliminated by using an alkaline water electrolysis system [16][17][18] that does not consume the electrode and produces desirable byproducts. For example, use of potassium hydroxide (KOH) as the electrolyte creates an alkaline water system that does not interact with the copper electrode.…”