@article{4dd6ffb335f6441299251bc4fe82889b,
title = "Assessment of biotic and abiotic graphite cathodes for hydrogen production in microbial electrolysis cells",
abstract = "Hydrogen represents a promising clean fuel for future applications. The biocathode of a two-chambered microbial electrolysis cell (biotic MEC) was studied and compared with an abiotic cathode (abiotic MEC) in order to assess the influence of naturally selected microorganisms for hydrogen production in a wide range of cathode potentials (from -400 to -1800 mV vs SHE). Hydrogen production in both MECs increased when cathode potential was decreased. Microorganisms present in the biotic MEC were identified as Hoeflea sp. and Aquiflexum sp. Supplied energy was utilized more efficiently in the biotic MEC than in the abiotic, obtaining higher hydrogen production respect to energy consumption. At -1000 mV biotic MEC produced 0.89 ± 0.10 m3 H2 d-1 m-3NCC (Net Cathodic Compartment) at a minimum operational cost of 3.2 USD kg-1 H2. This cost is lower than the estimated market value for hydrogen (6 USD kg-1 H 2).",
keywords = "Biocathode, Biohydrogen, Energy utilization, Two-chambered MEC",
author = "Pau Batlle-Vilanova and Sebasti{\`a} Puig and Rafael Gonzalez-Olmos and Anna Vilajeliu-Pons and Llu{\'i}s Ba{\~n}eras and Balaguer, {M. Dolors} and Jes{\'u}s Colprim",
note = "Funding Information: This research was financially supported by the Spanish Government ( CTQ 2011-23632 , CTQ 2011-24114 ). P. B-V. was supported by a project grant from the Catalan Government ( 2013 FI-B 00786 ). R. G-O. was supported by Juan de la Cierva Fellowship ( JCI-2010-07104 ) from Ministerio de Ciencia e Innovaci{\'o}n (Spain) . A. V-P. was supported by a grant from the University of Girona (BTI-12/32). Authors thank the assistance of Q-BIS research group and Carme Carulla (Serveis T{\`e}cnics de Recerca), both from the University of Girona. Authors also acknowledge comments given by the reviewers, which contributed to improve the paper. ",
year = "2014",
month = jan,
day = "16",
doi = "10.1016/j.ijhydene.2013.11.017",
language = "English",
volume = "39",
pages = "1297--1305",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Ltd.",
number = "3",
}