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dc.contributor.authorIvanov, Ivan
dc.contributor.authorAhn, YongTae
dc.contributor.authorPoirson, Thibault
dc.contributor.authorHickner, Michael A.
dc.contributor.authorLogan, Bruce
dc.date.accessioned2017-06-12T13:52:07Z
dc.date.available2017-06-12T13:52:07Z
dc.date.issued2017-06-02
dc.identifier.citationIvanov I, Ahn Y, Poirson T, Hickner MA, Logan BE (2017) Comparison of cathode catalyst binders for the hydrogen evolution reaction in microbial electrolysis cells. International Journal of Hydrogen Energy 42: 15739–15744. Available: http://dx.doi.org/10.1016/j.ijhydene.2017.05.089.
dc.identifier.issn0360-3199
dc.identifier.doi10.1016/j.ijhydene.2017.05.089
dc.identifier.urihttp://hdl.handle.net/10754/624954
dc.description.abstractNafion is commonly used as a catalyst binder in many types of electrochemical cells, but less expensive binders are needed for the cathodes in microbial electrolysis cells (MECs) which are operated in neutral pH buffers, and reverse electrodialysis stacks (RED),which use thermolytic solutions such as ammonium bicarbonate. Six different binders were examined based on differences in ion exchange properties (anionic: Nafion, BPSH20, BPSH40, S-Radel; cationic: Q-Radel; and neutral: Radel, BAEH) and hydrophobicity based on water uptake (0%, Radel; 17–56% for the other binders). BPSH40 had similar performance to Nafion based on steady-state polarization single electrode experiments in a neutral pH phosphate buffer, and slightly better performance in ammonium bicarbonate. Three different Mo-based catalysts were examined as alternatives to Pt, with MoB showing the best performance under steady-state polarization. In MECs, MoB/BPSH40 performed similarly to Pt with Nafion or Radel binders. The main distinguishing feature of the BPSH40 was that it is very hydrophilic, and thus it had a greater water content (56%) than the other binders (0–44%). These results suggest the binders for hydrogen evolution in MECs should be designed to have a high water content without sacrificing ionic or electronic conductivity in the electrode.
dc.description.sponsorshipThis research was supported by National Renewable Energy Laboratory (NREL), project no. ZFA-5-52002-01, and Award KUS-I1-003-13 from the King Abdullah University of Science and Technology (KAUST).
dc.publisherElsevier BV
dc.subjectBioelectrochemical
dc.subjectCatalyst binder
dc.subjectMicrobial electrolysis cell
dc.subjectHydrogen gas production
dc.titleComparison of cathode catalyst binders for the hydrogen evolution reaction in microbial electrolysis cells
dc.typeArticle
dc.identifier.journalInternational Journal of Hydrogen Energy
dc.contributor.institutionProcess Systems Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Magdeburg, Germany
dc.contributor.institutionDepartment of Energy Engineering, Gyeongnam National University of Science and Technology (GNTECH), Jinju, South Korea
dc.contributor.institutionPHELMA, Grenoble Institute of Technology, 38000 Grenoble, France
dc.contributor.institutionDepartment of Materials Science and Engineering, Penn State University, University Park, PA 16802, USA
dc.contributor.institutionDepartment of Civil and Environmental Engineering, Penn State University, University Park, PA 16802, USA
kaust.grant.numberKUS-I1-003-13
dc.date.published-online2017-06-02
dc.date.published-print2017-06


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