Co-Fe alloy/N-doped carbon hollow spheres derived from dual metal-organic frameworks for enhanced electrocatalytic oxygen reduction
Metal-organic framework (MOF) composites have recently been considered as promising precursors to derive advanced metal/carbon-based materials for various energy-related applications. Here, a dual-MOF-assisted pyrolysis approach is developed to synthesize Co-Fe alloy@N-doped carbon hollow spheres. N...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/138604 |
| _version_ | 1826118501998264320 |
|---|---|
| author | Zhang, Song Lin Guan, Bu Yuan Lou, David Xiong Wen |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Zhang, Song Lin Guan, Bu Yuan Lou, David Xiong Wen |
| author_sort | Zhang, Song Lin |
| collection | NTU |
| description | Metal-organic framework (MOF) composites have recently been considered as promising precursors to derive advanced metal/carbon-based materials for various energy-related applications. Here, a dual-MOF-assisted pyrolysis approach is developed to synthesize Co-Fe alloy@N-doped carbon hollow spheres. Novel core-shell architectures consisting of polystyrene cores and Co-based MOF composite shells encapsulated with discrete Fe-based MOF nanocrystallites are first synthesized, followed by a thermal treatment to prepare hollow composite materials composed of Co-Fe alloy nanoparticles homogeneously distributed in porous N-doped carbon nanoshells. Benefitting from the unique structure and composition, the as-derived Co-Fe alloy@N-doped carbon hollow spheres exhibit enhanced electrocatalytic performance for oxygen reduction reaction. The present approach expands the toolbox for design and preparation of advanced MOF-derived functional materials for diverse applications. |
| first_indexed | 2024-10-01T04:44:27Z |
| format | Journal Article |
| id | ntu-10356/138604 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:44:27Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1386042023-12-29T06:48:13Z Co-Fe alloy/N-doped carbon hollow spheres derived from dual metal-organic frameworks for enhanced electrocatalytic oxygen reduction Zhang, Song Lin Guan, Bu Yuan Lou, David Xiong Wen School of Chemical and Biomedical Engineering Engineering::Chemical engineering Co–Fe Alloy Hollow Structures Metal-organic framework (MOF) composites have recently been considered as promising precursors to derive advanced metal/carbon-based materials for various energy-related applications. Here, a dual-MOF-assisted pyrolysis approach is developed to synthesize Co-Fe alloy@N-doped carbon hollow spheres. Novel core-shell architectures consisting of polystyrene cores and Co-based MOF composite shells encapsulated with discrete Fe-based MOF nanocrystallites are first synthesized, followed by a thermal treatment to prepare hollow composite materials composed of Co-Fe alloy nanoparticles homogeneously distributed in porous N-doped carbon nanoshells. Benefitting from the unique structure and composition, the as-derived Co-Fe alloy@N-doped carbon hollow spheres exhibit enhanced electrocatalytic performance for oxygen reduction reaction. The present approach expands the toolbox for design and preparation of advanced MOF-derived functional materials for diverse applications. NRF (Natl Research Foundation, S’pore) Accepted version 2020-05-11T03:17:38Z 2020-05-11T03:17:38Z 2019 Journal Article Zhang, S. L., Guan, B. Y., & Lou, D. X. W. (2019). Co-Fe alloy/N-doped carbon hollow spheres derived from dual metal-organic frameworks for enhanced electrocatalytic oxygen reduction. Small, 15(13), 1805324-. doi:10.1002/smll.201805324 1613-6810 https://hdl.handle.net/10356/138604 10.1002/smll.201805324 30748105 2-s2.0-85063388621 13 15 en Small © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in Small and is made available with permission of WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. application/pdf |
| spellingShingle | Engineering::Chemical engineering Co–Fe Alloy Hollow Structures Zhang, Song Lin Guan, Bu Yuan Lou, David Xiong Wen Co-Fe alloy/N-doped carbon hollow spheres derived from dual metal-organic frameworks for enhanced electrocatalytic oxygen reduction |
| title | Co-Fe alloy/N-doped carbon hollow spheres derived from dual metal-organic frameworks for enhanced electrocatalytic oxygen reduction |
| title_full | Co-Fe alloy/N-doped carbon hollow spheres derived from dual metal-organic frameworks for enhanced electrocatalytic oxygen reduction |
| title_fullStr | Co-Fe alloy/N-doped carbon hollow spheres derived from dual metal-organic frameworks for enhanced electrocatalytic oxygen reduction |
| title_full_unstemmed | Co-Fe alloy/N-doped carbon hollow spheres derived from dual metal-organic frameworks for enhanced electrocatalytic oxygen reduction |
| title_short | Co-Fe alloy/N-doped carbon hollow spheres derived from dual metal-organic frameworks for enhanced electrocatalytic oxygen reduction |
| title_sort | co fe alloy n doped carbon hollow spheres derived from dual metal organic frameworks for enhanced electrocatalytic oxygen reduction |
| topic | Engineering::Chemical engineering Co–Fe Alloy Hollow Structures |
| url | https://hdl.handle.net/10356/138604 |
| work_keys_str_mv | AT zhangsonglin cofealloyndopedcarbonhollowspheresderivedfromdualmetalorganicframeworksforenhancedelectrocatalyticoxygenreduction AT guanbuyuan cofealloyndopedcarbonhollowspheresderivedfromdualmetalorganicframeworksforenhancedelectrocatalyticoxygenreduction AT loudavidxiongwen cofealloyndopedcarbonhollowspheresderivedfromdualmetalorganicframeworksforenhancedelectrocatalyticoxygenreduction |