Comparison of cathode catalyst binders for the hydrogen evolution reaction in microbial electrolysis cells

Handle URI:
http://hdl.handle.net/10754/624954
Title:
Comparison of cathode catalyst binders for the hydrogen evolution reaction in microbial electrolysis cells
Authors:
Ivanov, Ivan; Ahn, YongTae; Poirson, Thibault; Hickner, Michael A.; Logan, Bruce E. ( 0000-0001-7478-8070 )
Abstract:
Nafion 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.
Citation:
Ivanov 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.
Publisher:
Elsevier BV
Journal:
International Journal of Hydrogen Energy
KAUST Grant Number:
KUS-I1-003-13
Issue Date:
2-Jun-2017
DOI:
10.1016/j.ijhydene.2017.05.089
Type:
Article
ISSN:
0360-3199
Sponsors:
This 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).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorIvanov, Ivanen
dc.contributor.authorAhn, YongTaeen
dc.contributor.authorPoirson, Thibaulten
dc.contributor.authorHickner, Michael A.en
dc.contributor.authorLogan, Bruce E.en
dc.date.accessioned2017-06-12T13:52:07Z-
dc.date.available2017-06-12T13:52:07Z-
dc.date.issued2017-06-02en
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.en
dc.identifier.issn0360-3199en
dc.identifier.doi10.1016/j.ijhydene.2017.05.089en
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.en
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).en
dc.publisherElsevier BVen
dc.subjectBioelectrochemicalen
dc.subjectCatalyst binderen
dc.subjectMicrobial electrolysis cellen
dc.subjectHydrogen gas productionen
dc.titleComparison of cathode catalyst binders for the hydrogen evolution reaction in microbial electrolysis cellsen
dc.typeArticleen
dc.identifier.journalInternational Journal of Hydrogen Energyen
dc.contributor.institutionProcess Systems Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Magdeburg, Germanyen
dc.contributor.institutionDepartment of Energy Engineering, Gyeongnam National University of Science and Technology (GNTECH), Jinju, South Koreaen
dc.contributor.institutionPHELMA, Grenoble Institute of Technology, 38000 Grenoble, Franceen
dc.contributor.institutionDepartment of Materials Science and Engineering, Penn State University, University Park, PA 16802, USAen
dc.contributor.institutionDepartment of Civil and Environmental Engineering, Penn State University, University Park, PA 16802, USAen
kaust.grant.numberKUS-I1-003-13en
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