Hydrogen gas production in a microbial electrolysis cell by electrohydrogenesis

Relation of anodic and cathodic performance to pH variations in membraneless microbial fuel cells

“…First, acetate couple lays over hydrogen couple, so direct reduction of hydrogen by acetate oxidation is thermodynamically unfavorable. An attempt of using bacteria to produce hydrogen must thus imply the use of a further polarization of the cell, at least represented by the vertical distance from the two couples [24]. In this case, hydrogen production is less demanding at an acidic pH.…”

Bioelectrochemical treatment of municipal waste liquor in microbial fuel cells for energy valorization

“…Among them, organisms such as Shewanella, Geobacter,etc. 7 species have been identified as strains capable of converting chemically-bound energy 8 into bioelectricity (Wrana et al, 2010). However, when their pure cultures are 9 employed as seeding source to colonize MFC anodes, maintaining sterility is a strict MFC systems, as performed in this study using MAS.…”

Hydrogen for a sustainable global economy

“…Electrohydrogenesis is a bioelectrochemical process for hydrogen gas generation from organic material in reactors known as a microbial electrolysis cells (MECs). In another contribution to this issue (Wrana et al, 2010), fundamental concepts of MEC technology and mechanisms for electron transfer between microbe and electrode are discussed, the challenges these electrochemical systems face are presented, and finally current MEC systems are reviewed.…”