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Bioelectrochemical Technologies for Renewable Energy Applications and Production of Chemicals

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A4: Bio-Energy".

Deadline for manuscript submissions: closed (18 October 2021) | Viewed by 2236

Special Issue Editors


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Guest Editor
VTT Technical Research Centre of Finland, 02150 Espoo, Finland
Interests: protein-mediated electron transfer; protein engineering; electromicrobiology; bioelectrosynthesis of food, feed & chemicals from CO2

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Guest Editor
Faculty of Engineering and Natural Sciences, Tampere University, 33014 Tampere, Finland
Interests: environmental biotechnology; anaerobic bioprocesses; microbial electrochemical technologies; microbial electrosynthesis

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Guest Editor
Department of Civil & Environmental Engineering, Stanford University, Stanford, CA 94305, USA
Interests: microbial ecology; anaerobic microbiology; microbial electrosynthesis; electromethanogenesis; microbial electron transfer; electromicrobiology; microbial technologies to use renewable energy

Special Issue Information

Dear Colleagues,

We invite submissions to a Special Issue of the journal Energies on the topic of "Bioelectrochemical Technologies for Renewable Energy Applications and Production of Chemicals".

This Special Issue is inspired by the ever-increasing diversification of research with a focus on bioelectrochemical systems. We aim to provide a platform to further and advertise progress in this highly transdisciplinary research field that combines the strengths of biology and electrochemistry to tackle the challenges associated with transitioning from a fossil fuel-based to a renewable (bio)economy. Topics of interest include the resource-efficient treatment of waste streams, environmental remediation, biosensing and synthesis of a wide range of chemicals from renewable feedstocks. In line with the transdisciplinary nature of this field, we encourage the submission of work in any area that benefits the field and aids progress towards renewable energy applications and production of chemicals using renewable energy. This includes, but is not limited to, the development of innovative electrode materials, membranes or reactor configurations, modelling of bioelectrochemical systems, novel or improved process designs, the discovery and combination of novel biocatalysts, as well as the engineering of metabolic pathways.

The Guest Editors of this Special Issue would like to encourage original contributions regarding recent developments and ideas pertaining to bioelectrochemical technologies. Relevant topics are given by, but are not limited to, the following list of keywords.

Dr. Michael Lienemann
Dr. Marika Kokko
Dr. Jörg S. Deutzmann
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Bioelectrochemical systems
  • Microbial fuel cell
  • Bioelectrosynthesis
  • Electrofermentation
  • Bioelectrochemical sensing
  • Extracellular electron transfer

Published Papers (1 paper)

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Research

9 pages, 2706 KiB  
Article
Feasibility of Using Electrodes with Ultralow Pt Loading in Two-Chamber Microbial Electrolysis Cells
by Eunjin Jwa, Mijin Kim, Ji-Hyung Han, Namjo Jeong, Hyun-Chul Kim, Yeo-Myeong Yun and Joo-Youn Nam
Energies 2021, 14(22), 7752; https://doi.org/10.3390/en14227752 - 18 Nov 2021
Cited by 1 | Viewed by 1539
Abstract
Decreasing the Pt loading and surface area of the cathode was found to accelerate the hydrogen evolution reaction in microbial electrolysis cells (MEC) at low substrate concentrations. The experimental wire cathode used in this study had a reduced Pt loading of 20 µg [...] Read more.
Decreasing the Pt loading and surface area of the cathode was found to accelerate the hydrogen evolution reaction in microbial electrolysis cells (MEC) at low substrate concentrations. The experimental wire cathode used in this study had a reduced Pt loading of 20 µg Pt/cm2 and only 14% of the surface area of the control disk-type cathode. With the wire cathodes, peak current densities of 33.1 ± 2.3 A/m2 to 30.4 ± 0.5 A/m2 were obtained at substrate concentrations of 0.4 g/L and 1.0 g/L, respectively, which were 5.4 to 6.2 times higher than those obtained with the disk electrode (5.1–5.7 A/m2). The higher cathode overpotentials and higher current densities obtained with the wire electrode compared to those observed with the disk electrode were advantageous for hydrogen recovery, energy recovery efficiencies, and the hydrogen volume produced (8.5 ± 1.2 mL at 0.4 g/L to 23.0 ± 2.2 mL at 1.0 g/L with the wire electrode; 6.8 ± 0.4 mL at 0.4 g/L to 21.8 ± 2.2 mL at 1.0 g/L with the disk electrode). Therefore, the wire electrode, which used only 0.6% of the Pt catalyst amount in typical disk-type electrodes (0.5 mg Pt/cm2), was effective at various substrate concentrations. The results of this study are very promising because the capital cost of the MEC reactors can be greatly reduced if the wire-type electrodes with ultralow Pt loading are utilized in field applications. Full article
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