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Effect of coupled catalyst loading and ionomer binder on oxygen reduction reaction in high-temperature pemfc

A. A., Jalil and M. S. M., Yusof and A., Ahmad and S., Triwahyono and M. H. D., Othman and T. A. T., Abdullah and M. L., Firmansyah and Herma Dina, Setiabudi and Y., Gambo (2018) Effect of coupled catalyst loading and ionomer binder on oxygen reduction reaction in high-temperature pemfc. In: 4th International Conference Of Chemical Engineering And Industrial Biotechnology (ICCEIB 2018), 1-2 August 2018 , Seri Pacific Hotel, Kuala Lumpur. pp. 72-73..

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Abstract

Polybenzimidazole (PBI) was studied as an ionomer binder at varying ratios (1-7) in a 20~40 wt% Pt–Pd/C cathode-coupled catalyst layer for the oxygen reduction reaction (ORR) in a high-temperature proton exchange membrane fuel cell (HT-PEMFC). Catalytic activity was examined by CV and LSV, while the properties of the catalysts were characterized by FESEM-EDX, N2 adsorption–desorption, XRD and FTIR. The results showed that the distribution of metals on the carbon surface, carbon wall thickness and the interaction between ionomer and coupled catalysts affected the ORR performance. The fabricated membrane electrode assembly with 5:95 PBI: 30 wt% Pt–Pd/C catalyst ratio exhibited the best performance and highest durability for HT-PEMFC at 170°C, yielding a power density of 1.20 Wcm-2 with 0.02 mgPt/cm Pt loading. This result was comparable to those reported by other studies [1-4], highlighting a promising catalyst for fuel cell application.

Item Type: Conference or Workshop Item (Lecture)
Uncontrolled Keywords: Pt-Pd/C catalyst; polybenzimidazole ionomer; oxygen reduction reaction; high temperature-PEMFC
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 07 Jan 2019 09:03
Last Modified: 07 Jan 2019 09:03
URI: http://umpir.ump.edu.my/id/eprint/23642
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