Electrochemical and microbiological insights into the use of 1,4-diazabicyclo[2.2.2]octane-functionalized anion exchange membrane in microbial fuel cell: a benchmarking study with Nafion
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00518951" target="_blank" >RIV/61389013:_____/20:00518951 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1383586619351585?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1383586619351585?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.seppur.2019.116478" target="_blank" >10.1016/j.seppur.2019.116478</a>
Alternative languages
Result language
angličtina
Original language name
Electrochemical and microbiological insights into the use of 1,4-diazabicyclo[2.2.2]octane-functionalized anion exchange membrane in microbial fuel cell: a benchmarking study with Nafion
Original language description
In this work, two polymeric membrane separators (a proton exchange membrane (PEM), Nafion, and an anion-exchange membrane (AEM), 1,4-diazabicyclo[2.2.2]octane (DABCO)-functionalized PSEBS) deployed in microbial fuel cells (MFCs) are comparatively assessed. The performances of MFCs according to membrane type were evaluated by biological and electrochemical techniques, employing metagenomics, electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). It was found that the anodic biofilms of MFCs, irrespective of the type of membrane, were dominated by Geobacter sulfurreducens (37 and 50% for AEM-MFC and PEM-MFC, respectively), a well-known electrochemically active species. Furthermore, the AEM-MFC reflected a significantly lower internal resistance (145 Ω) compared to PEM-MFC (339 Ω) and produced higher maximal current densities and energy yields at all substrate (acetate) concentrations, as follows: 400 vs. 285 mA m−2 (5 mM acetate), 360 vs. 320 mA m−2 (10 mM acetate), 305 vs. 235 mA m−2 (15 mM acetate) and 238 vs.132 kJ m−2 gCOD (5 mM acetate), 161 vs. 128 kJ m−2 gCOD (10 mM acetate), 114 vs. 59 kJ m−2 gCOD (15 mM acetate) respectively. The CV measurements implied diffusion limitations in the MFCs, which were supported by EIS. In addition, the PEM and AEM characterizations revealed that in both cases, the ion exchange capacity, ionic conductivity and oxygen mass transport features were altered considerably over the 39 days during which the MFCs operated.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Separation and Purification Technology
ISSN
1383-5866
e-ISSN
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Volume of the periodical
237
Issue of the periodical within the volume
15 April
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
1-9
UT code for WoS article
000509625700018
EID of the result in the Scopus database
2-s2.0-85077011122