ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction
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...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/162103 |
| _version_ | 1826126757147705344 |
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| author | Hao, Yanqi Ge, Lin Chan, Siew Hwa |
| author2 | Energy Research Institute @ NTU (ERI@N) |
| author_facet | Energy Research Institute @ NTU (ERI@N) Hao, Yanqi Ge, Lin Chan, Siew Hwa |
| author_sort | Hao, Yanqi |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T06:57:54Z |
| format | Journal Article |
| id | ntu-10356/162103 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:57:54Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1621032022-10-04T06:06:46Z ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction Hao, Yanqi Ge, Lin Chan, Siew Hwa Energy Research Institute @ NTU (ERI@N) Engineering::Mechanical engineering Catalysis Cerium 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. The project was financially supported by a research grant (204-A018001) from the China-Singapore International Joint Research Institute. 2022-10-04T06:06:46Z 2022-10-04T06:06:46Z 2022 Journal Article 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. https://dx.doi.org/10.1002/fuce.202100179 1615-6846 https://hdl.handle.net/10356/162103 10.1002/fuce.202100179 2-s2.0-85126836191 1-2 22 23 30 en Fuel Cells © 2022 Wiley-VCH GmbH. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Catalysis Cerium Hao, Yanqi Ge, Lin Chan, Siew Hwa ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction |
| title | ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction |
| title_full | ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction |
| title_fullStr | ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction |
| title_full_unstemmed | ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction |
| title_short | ZIF-8 derived CeO₂-Fe₃O₄@Fe-N/C catalyst for oxygen reduction reaction |
| title_sort | zif 8 derived ceo₂ fe₃o₄ fe n c catalyst for oxygen reduction reaction |
| topic | Engineering::Mechanical engineering Catalysis Cerium |
| url | https://hdl.handle.net/10356/162103 |
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