Coupling catalysis and electrocatalysis for hydrogen production in a solid electrolyte membrane reactor

摘要: Abstract This study reports the production of H2 via catalytic methane decomposition on Pt supported yttria-stabilized zirconia together with its electrochemical regeneration in a solid electrolyte membrane reactor. Hence, Pt-YSZporous/YSZ/Pt double-chamber cell was prepared and tested under two reaction regimes. In first regime, open-circuit conditions, hydrogen carbon are produced catalytically active Pt-YSZ porous catalyst (CH4 (g) → C (s) + 2H2 (g)). second polarization steam is electrolyzed at cathode (H2O + 2e− → H2 + O2−) O2− ions were simultaneously electrochemically pumped to Pt/YSZ (anode), thereby allowing removal previously deposited (C (s) + O2− → CO2 (g)) finally regenerating film. We demonstrated that generated step serves as depolarizating agent electrolysis process, thus decreasing electrical energy input required for producing pure H2. addition, during step, C2 hydrocarbons (e.g., ethane ethylene) obtained result electrocatalytic oxidative coupling The performance durability system also verified long operation times view possible practical application this novel reactor configuration, which combines gas-phase catalysis electrocatalysis production.