TY  - JOUR
AV  - none
N1  - cited By 61
TI  - Clean hydrogen production in a full biological microbial electrolysis cell
SP  - 30524
PB  - Elsevier Ltd
SN  - 03603199
EP  - 30531
N2  - The recent interest in microbial electrolysis cell (MEC) technology has led the research platform to develop full biological MECs (bioanode-biocathode, FB-MEC). This study focused on biohydrogen production from a biologically catalyzed MEC. A bioanode and a biocathode were initially enriched in a half biological MFC (bioanode-abiocathode, HB-MFC) and a half biological MEC (abioanode-biocathode, HB-MEC), respectively. The FB-MEC was established by transferring the biocathode of the HB-MEC and the bioanode of the HB-MFC to a two-chamber MEC. The FB-MEC was operated under batch (FB-MEC-B) and recirculation batch (FB-MEC-RB) modes of operation in the anodic chamber. The FB-MEC-B reached a maximum current density of 1.5 A/m2 and the FB-MEC-RB reached a maximum current density of 2.5 A/m2 at a similar applied voltage while the abiotic control system showed the maximum of 0.2 A/m2. Hydrogen production rate decreased in the FB-MEC compared to that of the HB-MEC. However, the cathodic hydrogen recovery increased from 42 obtained in the HB-MEC to 56 in the FB-MEC-B and 65 in the FB-MEC-RB, suggesting the efficient oxidation and reduction rates in the FB-MEC compared to the HB-MEC. The onset potential for hydrogen evolution reaction detected by linear sweep voltammetry analysis were â??0.780 and â??0.860 V vs Ag/AgCl for the FB-MEC-RB and the FB-MEC-B (â??1.26 for the abiotic control MEC), respectively. Moreover, the results suggested that the FB-MEC worked more efficiently when the biocathode and the bioanode were enriched initially in half biological systems before transferring to the FB-MEC compared to that of the simultaneously enriched in one system. © 2018 Hydrogen Energy Publications LLC
IS  - 58
ID  - scholars11094
KW  - Biological systems; Electrolysis; Electrolytic cells; Hydrogen production; Photobiological hydrogen production; Regenerative fuel cells
KW  -  Bio-hydrogen production; Efficient oxidations; Hydrogen evolution reactions; Hydrogen production rate; Linear sweep voltammetry; Maximum current density; Mode of operations; Onset potential
KW  -  Microbial fuel cells
Y1  - 2019///
JF  - International Journal of Hydrogen Energy
A1  - Jafary, T.
A1  - Wan Daud, W.R.
A1  - Ghasemi, M.
A1  - Abu Bakar, M.H.
A1  - Sedighi, M.
A1  - Kim, B.H.
A1  - Carmona-Martínez, A.A.
A1  - Jahim, J.M.
A1  - Ismail, M.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040700738&doi=10.1016%2fj.ijhydene.2018.01.010&partnerID=40&md5=26bb98376ef9d88c83521024238f0072
VL  - 44
ER  -