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dc.contributor.authorRossi, Ruggero
dc.contributor.authorCario, Benjamin P
dc.contributor.authorSantoro, Carlo
dc.contributor.authorYang, Wulin
dc.contributor.authorSaikaly, Pascal
dc.contributor.authorLogan, Bruce E.
dc.date.accessioned2019-03-11T07:17:27Z
dc.date.available2019-03-11T07:17:27Z
dc.date.issued2019-02-27
dc.identifier.citationRossi R, Cario BP, Santoro C, Yang W, Saikaly PE, et al. (2019) Evaluation of electrode and solution area-based resistances enables quantitative comparisons of factors impacting microbial fuel cell performance. Environmental Science & Technology. Available: http://dx.doi.org/10.1021/acs.est.8b06004.
dc.identifier.issn0013-936X
dc.identifier.issn1520-5851
dc.identifier.doi10.1021/acs.est.8b06004
dc.identifier.urihttp://hdl.handle.net/10754/631545
dc.description.abstractDirect comparisons of microbial fuel cells (MFCs) based on maximum power densities are hindered by different reactor and electrode sizes, solution conductivities, and materials. We propose an alternative method here, the electrode potential slope (EPS) analysis, to enable quantitative comparisons based on anode and cathode area-based resistances and operating potentials. Using the EPS analysis, the brush anode resistance (RAn= 10.6 ± 0.5 mΩ m2) was shown to be 28% less than the resistance of a 70% porosity diffusion layer (70% DL) cathode (Rcat = 14.8 ± 0.9 mΩ m2), and 24% less than the solution resistance (RΩ = 14 mΩ m2) (acetate in 50 mM phosphate buffer solution). Using a less porous cathode (30% DL) did not impact the cathode resistance, but it reduced the cathode performance due to a lower operating potential. With low conductivity domestic wastewater (RΩ = 87 mΩ m2), both electrodes had higher resistances, with RAn = 75 ± 9 mΩ m2 and RCat = 54 ± 7 mΩ m2 (70% DL). Our analysis of the literature using the EPS analysis shows how electrode resistances can easily be quantified to compare system performance when the electrode distances are changed or the electrodes have different sizes.
dc.description.sponsorshipThe research was supported by funds provided by the Environmental Security Technology Certification Program via cooperative research agreement W9132T-16-2-0014 through the US Army Engineer Research and Development Center.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acs.est.8b06004
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Environmental Science & Technology, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.est.8b06004.
dc.titleEvaluation of electrode and solution area-based resistances enables quantitative comparisons of factors impacting microbial fuel cell performance
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Biotechnology Research Group
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalEnvironmental Science & Technology
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Civil and Environmental Engineering, The Pennsylvania State University, 231Q Sackett Building, University Park, PA 16802, USA
dc.contributor.institutionDepartment of Chemical and Biological Engineering, Center for Micro-Engineered Materials (CMEM), University of New Mexico, Advanced Materials Lab, 1001 University Blvd. SE Suite 103, MSC 04 2790, \nAlbuquerque, NM 87131, USA.
kaust.personSaikaly, Pascal
refterms.dateFOA2020-02-27T00:00:00Z
dc.date.published-online2019-02-27
dc.date.published-print2019-04-02


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