Yolk–Shell-Structured Cu/Fe@γ-Fe2O3 Nanoparticles Loaded Graphitic Porous Carbon for the Oxygen Reduction Reaction
Core–shell Cu/γ-Fe2O3@C and yolk–shell-structured Cu/Fe@γ-Fe2O3@C particles are prepared by a facile synthesis method using copper oxide as template particles, resorcinol-formaldehyde as the carbon precursor, and iron nitrate solution as the iron source via pyrolysis. With increasing carbonization t...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
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2017
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| Online Access: | http://purl.org/au-research/grants/arc/DP150103026 http://hdl.handle.net/20.500.11937/56591 |
| _version_ | 1848759889885659136 |
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| author | Wang, M. Su, C. Saunders, M. Liang, J. Shao, Zongping Wang, S. Liu, Jian |
| author_facet | Wang, M. Su, C. Saunders, M. Liang, J. Shao, Zongping Wang, S. Liu, Jian |
| author_sort | Wang, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Core–shell Cu/γ-Fe2O3@C and yolk–shell-structured Cu/Fe@γ-Fe2O3@C particles are prepared by a facile synthesis method using copper oxide as template particles, resorcinol-formaldehyde as the carbon precursor, and iron nitrate solution as the iron source via pyrolysis. With increasing carbonization temperature and time, solid γ-Fe2O3 cores are formed and then transformed into Fe@γ-Fe2O3 yolk–shell-structured particles via Ostwald ripening under nitrogen gas flow. The composition variations are studied, and the formation mechanism is proposed for the generation of the hollow and yolk–shell-structured metal and metal oxides. Moreover, highly graphitic carbons can be obtained by etching the metal and metal oxide nanoparticles through an acid treatment. The electrocatalytic activity for oxygen reduction reaction is investigated on Cu/γ-Fe2O3@C, Cu/Fe@γ-Fe2O3@C, and graphitic carbons, indicating comparable or even superior performance to other Fe-based nanocatalysts. |
| first_indexed | 2025-11-14T10:07:04Z |
| format | Journal Article |
| id | curtin-20.500.11937-56591 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:07:04Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-565912022-10-26T06:24:21Z Yolk–Shell-Structured Cu/Fe@γ-Fe2O3 Nanoparticles Loaded Graphitic Porous Carbon for the Oxygen Reduction Reaction Wang, M. Su, C. Saunders, M. Liang, J. Shao, Zongping Wang, S. Liu, Jian Core–shell Cu/γ-Fe2O3@C and yolk–shell-structured Cu/Fe@γ-Fe2O3@C particles are prepared by a facile synthesis method using copper oxide as template particles, resorcinol-formaldehyde as the carbon precursor, and iron nitrate solution as the iron source via pyrolysis. With increasing carbonization temperature and time, solid γ-Fe2O3 cores are formed and then transformed into Fe@γ-Fe2O3 yolk–shell-structured particles via Ostwald ripening under nitrogen gas flow. The composition variations are studied, and the formation mechanism is proposed for the generation of the hollow and yolk–shell-structured metal and metal oxides. Moreover, highly graphitic carbons can be obtained by etching the metal and metal oxide nanoparticles through an acid treatment. The electrocatalytic activity for oxygen reduction reaction is investigated on Cu/γ-Fe2O3@C, Cu/Fe@γ-Fe2O3@C, and graphitic carbons, indicating comparable or even superior performance to other Fe-based nanocatalysts. 2017 Journal Article http://hdl.handle.net/20.500.11937/56591 10.1002/ppsc.201700158 http://purl.org/au-research/grants/arc/DP150103026 restricted |
| spellingShingle | Wang, M. Su, C. Saunders, M. Liang, J. Shao, Zongping Wang, S. Liu, Jian Yolk–Shell-Structured Cu/Fe@γ-Fe2O3 Nanoparticles Loaded Graphitic Porous Carbon for the Oxygen Reduction Reaction |
| title | Yolk–Shell-Structured Cu/Fe@γ-Fe2O3 Nanoparticles Loaded Graphitic Porous Carbon for the Oxygen Reduction Reaction |
| title_full | Yolk–Shell-Structured Cu/Fe@γ-Fe2O3 Nanoparticles Loaded Graphitic Porous Carbon for the Oxygen Reduction Reaction |
| title_fullStr | Yolk–Shell-Structured Cu/Fe@γ-Fe2O3 Nanoparticles Loaded Graphitic Porous Carbon for the Oxygen Reduction Reaction |
| title_full_unstemmed | Yolk–Shell-Structured Cu/Fe@γ-Fe2O3 Nanoparticles Loaded Graphitic Porous Carbon for the Oxygen Reduction Reaction |
| title_short | Yolk–Shell-Structured Cu/Fe@γ-Fe2O3 Nanoparticles Loaded Graphitic Porous Carbon for the Oxygen Reduction Reaction |
| title_sort | yolk–shell-structured cu/fe@γ-fe2o3 nanoparticles loaded graphitic porous carbon for the oxygen reduction reaction |
| url | http://purl.org/au-research/grants/arc/DP150103026 http://hdl.handle.net/20.500.11937/56591 |