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Updated: Mar 9, 2026

Hydrogen Production and Utilization in a Membrane Reactor
Published on: March 10, 2023
H2 production in membraneless bioelectrochemical cells with optimized architecture: The effect of cathode surface
Isaac Rivera1, Péter Bakonyi1, Germán Buitrón1
1Laboratory for Research on Advanced Processes for Water Treatment, Instituto de Ingeniería, Unidad Académica Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico.
Abstract:
In this work we report on the hydrogen production capacity of single-chamber microbial electrohydrogenesis cell (MEC) with optimized design characteristics, in particular cathode surface area and anode-cathode spacing using acetate as substrate. The results showed that the maximal H2 production rates and best energetic performances could be obtained using the smallest, 71 cm2 stainless steel cathode and 4 cm electrode distances, employing a 60 cm2 bioanode. Cyclic voltammetric analysis was employed to investigate the dominant electron transfer mechanism of the architecturally optimized system.
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