A comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell

A biocathode microbial electrolysis cell (MEC) can be considered as an environmentally friendly and self-generative alternative to an abiocathode MEC for the cleaner production of hydrogen in a novel microbial electrolysis system. For the first time, this research focused on the development of the M...

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Main Authors: Jafary, T., Daud, W.R.W., Ghasemi, M., Kim, B.H., Carmona-Martínez, A.A., Bakar, M.H.A., Jahim, J.M., Ismail, M.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19310 /
Published: Elsevier Ltd 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85027466026&doi=10.1016%2fj.jclepro.2017.07.033&partnerID=40&md5=eda29f5cb5e56ff85f091a24fcaf54dd
http://eprints.utp.edu.my/19310/
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spelling utp-eprints.193102018-05-03T02:12:05Z A comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell Jafary, T. Daud, W.R.W. Ghasemi, M. Kim, B.H. Carmona-Martínez, A.A. Bakar, M.H.A. Jahim, J.M. Ismail, M. A biocathode microbial electrolysis cell (MEC) can be considered as an environmentally friendly and self-generative alternative to an abiocathode MEC for the cleaner production of hydrogen in a novel microbial electrolysis system. For the first time, this research focused on the development of the MEC biocathode out of sulphate-reducing bacteria (SRB) for the purpose of hydrogen production based on the previously proposed hypothesis. SRB were initially enriched from a mixed culture source during the ex-situ SRB enrichment stage. Two different MEC bioathodes- namely, the MEC origin (MEC-O) biocathode and the microbial fuel cell-MEC (MFC-MEC) biocathode- were then developed through two different enrichment procedures during the in-situ SRB enrichment stage. Hydrogen gas was the main product of the MEC-O biocathode with a low detection of methane, while methane was detected as the sole product of the MFC-MEC biocathode system. Therefore, the MEC-O biocathode system was selected during the enhancement stage to increase the biocathode MEC performance. It was shown in the study, that in the enhancement stage of the MEC-O biocathode, the concentration of sodium sulphate in the cathodic medium, the hydrogen supply during the enrichment stage and pH of the cathodic medium could significantly affect the MEC performance in terms of the hydrogen production rate, the onset potential for the hydrogen evolution reaction (HER) and the cathodic charge transfer resistance. The hydrogen production was improved significantly by about 6 times from 0.31 to 1.85 m3 H2/(m3 d) during the enhancement stage, while the methane production was totally hindered. The linear sweep voltammetry analysis displayed a 430-mV (equal to about 1 kWh/m3 of energy input) reduction of the HER onset potential in the biocathode system compared to that of a non-inoculated graphite felt cathode. Moreover, the electrochemical impedance spectroscopy showed that the cathodic charge transfer resistance of the MEC biocathode reduced by 300 times compared to that of a non-inoculated graphite felt cathode. © 2017 Elsevier Ltd Elsevier Ltd 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85027466026&doi=10.1016%2fj.jclepro.2017.07.033&partnerID=40&md5=eda29f5cb5e56ff85f091a24fcaf54dd Jafary, T. and Daud, W.R.W. and Ghasemi, M. and Kim, B.H. and Carmona-Martínez, A.A. and Bakar, M.H.A. and Jahim, J.M. and Ismail, M. (2017) A comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell. Journal of Cleaner Production, 164 . pp. 1135-1144. http://eprints.utp.edu.my/19310/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description A biocathode microbial electrolysis cell (MEC) can be considered as an environmentally friendly and self-generative alternative to an abiocathode MEC for the cleaner production of hydrogen in a novel microbial electrolysis system. For the first time, this research focused on the development of the MEC biocathode out of sulphate-reducing bacteria (SRB) for the purpose of hydrogen production based on the previously proposed hypothesis. SRB were initially enriched from a mixed culture source during the ex-situ SRB enrichment stage. Two different MEC bioathodes- namely, the MEC origin (MEC-O) biocathode and the microbial fuel cell-MEC (MFC-MEC) biocathode- were then developed through two different enrichment procedures during the in-situ SRB enrichment stage. Hydrogen gas was the main product of the MEC-O biocathode with a low detection of methane, while methane was detected as the sole product of the MFC-MEC biocathode system. Therefore, the MEC-O biocathode system was selected during the enhancement stage to increase the biocathode MEC performance. It was shown in the study, that in the enhancement stage of the MEC-O biocathode, the concentration of sodium sulphate in the cathodic medium, the hydrogen supply during the enrichment stage and pH of the cathodic medium could significantly affect the MEC performance in terms of the hydrogen production rate, the onset potential for the hydrogen evolution reaction (HER) and the cathodic charge transfer resistance. The hydrogen production was improved significantly by about 6 times from 0.31 to 1.85 m3 H2/(m3 d) during the enhancement stage, while the methane production was totally hindered. The linear sweep voltammetry analysis displayed a 430-mV (equal to about 1 kWh/m3 of energy input) reduction of the HER onset potential in the biocathode system compared to that of a non-inoculated graphite felt cathode. Moreover, the electrochemical impedance spectroscopy showed that the cathodic charge transfer resistance of the MEC biocathode reduced by 300 times compared to that of a non-inoculated graphite felt cathode. © 2017 Elsevier Ltd
format Article
author Jafary, T.
Daud, W.R.W.
Ghasemi, M.
Kim, B.H.
Carmona-Martínez, A.A.
Bakar, M.H.A.
Jahim, J.M.
Ismail, M.
spellingShingle Jafary, T.
Daud, W.R.W.
Ghasemi, M.
Kim, B.H.
Carmona-Martínez, A.A.
Bakar, M.H.A.
Jahim, J.M.
Ismail, M.
A comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell
author_sort Jafary, T.
title A comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell
title_short A comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell
title_full A comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell
title_fullStr A comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell
title_full_unstemmed A comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell
title_sort comprehensive study on development of a biocathode for cleaner production of hydrogen in a microbial electrolysis cell
publisher Elsevier Ltd
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85027466026&doi=10.1016%2fj.jclepro.2017.07.033&partnerID=40&md5=eda29f5cb5e56ff85f091a24fcaf54dd
http://eprints.utp.edu.my/19310/
_version_ 1741196186573864960
score 11.62408

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