Evaluation of PtAu/MWCNT (Multiwalled Carbon Nanotubes) electrocatalyst performance as cathode of a proton exchange membrane fuel cell

M. Beltrán-Gastélum, M.I. Salazar-Gastélum, R.M. Félix-Navarro, S. Pérez-Sicairos, E.A. Reynoso-Soto, S.W. Lin, J.R. Flores-Hernández, T. Romero-Castañón, I.L. Albarrán-Sánchez and F. Paraguay-Delgado

Energy, 2016, vol. 109, issue C, 446-455

Abstract: A comparative study between PtAu/MWCNT and Pt/C (commercial) as cathodic electrocatalyst of H2/O2 fuel cell is performed. PtAu/MWCNT is synthesized using the reverse microemulsion method and this procedure is scaled-up in order to prepare membrane-electrode assemblies for fuel cells with an active area of 9 cm2. Those electrocatalysts are characterized by both physicochemical techniques and electrochemical measurements to evaluate their catalytic activity for ORR (Oxygen Reduction Reaction). In the half-cell study, PtAu/MWCNT show higher kinetic current density as cathodic electrocatalyst compared with Pt/C. Likewise, in a fuel cell hardware the maximum power density is significantly higher for PtAu/MWCNT cathode (625 mW cm−2 at 0.426 V) when compared with Pt/C anode (355 mW cm−2 at 0.499 V).

Keywords: PEMFC; MWCNT; Oxygen reduction reaction; Bimetallic; Nanomaterial; Electrocatalyst (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:109:y:2016:i:c:p:446-455

DOI: 10.1016/j.energy.2016.04.132

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