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e-ISSN 3093-3994
ISSN 0866-7756
DOI: 10.62831
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Issue: Số 9 - Tháng 4 - 2023 Hóa học - Công nghệ thực phẩm

73. The Oxygen Reduction Reaction on Cathode Electrodes with PtxFey/C Nanomaterials in the Proton Exchange Membrane Fuel Cell

Published: July 28, 2026

Abstract

The Pt-Fe bimetallic nanoparticles supported on nano carbon (PtxFey/C) are synthesized by the NaBH4reduction under ultrasonic irradiation. The morphology, crystal structure and specific area of synthesized nanomaterials are characterized by using X-Ray diffraction (XRD) and transmission electron microscopy (TEM). The electrocatalytic activity for the oxygen reduction reaction of the synthesized PtxFey/C materials and the commercial 10wt.% Pt loaded on activated carbon catalyst (Aldrich Sigma, Pt/C_com) are investigated by using cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The major size of synthesized metallic particles is around 2- 8 nm. The best catalyst for ORR with the onset potential is 0,63 V. The electron charge transfer number deduced from Koutecky-Levich equation using PtxCuy/VC catalyst materials for ORR ranges from 1,9 to 2,5.
Keywords
bimetallic PtxFey/C NaBH4reduction fuel cells.

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