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Title: ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction
Authors: Hao, Yanqi
Ge, Lin
Chan, Siew Hwa
Keywords: Engineering::Mechanical engineering
Issue Date: 2022
Source: Hao, Y., Ge, L. & Chan, S. H. (2022). ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction. Fuel Cells, 22(1-2), 23-30.
Journal: Fuel Cells
Abstract: Looking for non-noble metal catalysts with low cost, high activity, and high stability to replace platinum in oxygen reduction reaction (ORR) has aroused great concern. According to previous studies, Fe-Nx/C material is one of the most promising non-noble metal catalysts for ORR. In this study, new Fe-Nx/C material was synthesized by introducing CeO2 and Fe3O4 nanoparticles into a Fe-Nx/C material derived from ZIF-8 as precursors. The new material was called CeO2-Fe3O4@Fe-N/C catalyst and the activity of the catalyst was found to be significantly improved in 0.1 mol L−1 KOH. The half-wave potential of CeO2-Fe3O4@Fe-N/C (0.892 V) is higher than that of Pt/C by 67 mV. In the stability test, the half-wave potential of CeO2-Fe3O4@Fe-N/C was only reduced by 4 mV after 5,000 cycles. The high performance is attributed to the introduction of CeO2 and Fe3O4, which gives CeO2-Fe3O4@Fe-N/C enhanced electrocatalytic activity and long-term stability. This approach makes CeO2-Fe3O4@Fe-N/C a promising candidate for cathode catalysts in renewable energy conversion devices.
ISSN: 1615-6846
DOI: 10.1002/fuce.202100179
Rights: © 2022 Wiley-VCH GmbH. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:ERI@N Journal Articles

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