Chitosan Intercalated Metal Organic Gel as a Green Precursor of Fe Entrenched and Fe Distributed N-Doped Mesoporous Graphitic Carbon for Oxygen Reduction Reaction
Herein, we present Metal-Organic Gel intercalated with chitosan, a green” precursor for the synthesis of intrinsic N-doped Fe entrenched (CHI-TMA-Fe-CW) and Fe distributed mesoporous graphitic carbon structures (CHI-TMA-Fe-CW-M1) with appreciable Oxygen Reduction Reaction (ORR) activity in alkaline...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
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Wiley - V C H Verlag GmbH & Co. KGaA
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/66833 |
| _version_ | 1848761404871409664 |
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| author | Shijina, K. Illathvalappil, R. Kurungot, S. Nair, Balagopal Mohamed, A. Yamaguchi, T. Anilkumar, G. Hareesh, U. Sailaja, G. |
| author_facet | Shijina, K. Illathvalappil, R. Kurungot, S. Nair, Balagopal Mohamed, A. Yamaguchi, T. Anilkumar, G. Hareesh, U. Sailaja, G. |
| author_sort | Shijina, K. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Herein, we present Metal-Organic Gel intercalated with chitosan, a green” precursor for the synthesis of intrinsic N-doped Fe entrenched (CHI-TMA-Fe-CW) and Fe distributed mesoporous graphitic carbon structures (CHI-TMA-Fe-CW-M1) with appreciable Oxygen Reduction Reaction (ORR) activity in alkaline medium. Modulation of the synthetic protocol as a function of reaction kinetics and gelation time while maintaining identical pyrolysis conditions (900 °C, flowing N 2 atmosphere) improves the microstructure, surface area and Fe distribution of the graphitic structures (CHI-TMA-Fe-CW-M1). CHI-TMA-Fe-CW has a Fe entrenched graphitic nanocapsule like morphology while Fe distributed mesoporous graphitic carbon sheets, with a specific surface area value of 565 m 2 g -1 obtained by modulating the synthesis chemistry in CHI-TMA-Fe-CW-M1. The higher percentage of graphitic N in CHI-TMA-Fe-CW-M1 apparent from the XPS data validate that the modified synthetic method favours creation of more graphitic N sites contributing for better catalytic performance. CHI-TMA-Fe-CW-M1 catalyst exhibited comparable electrocatalytic activity with that of the commercially available Pt/C via an efficient four-electron-dominant ORR pathway with a positive onset potential value of 0.925 V vs RHE. Good durability of CHI-TMA-Fe-CW-M1 after 5000 cycles further confirm the prospects of MOG-chitosan and the feasibility to be used as a potential catalyst for ORR. |
| first_indexed | 2025-11-14T10:31:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-66833 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:31:08Z |
| publishDate | 2017 |
| publisher | Wiley - V C H Verlag GmbH & Co. KGaA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-668332018-05-18T08:06:51Z Chitosan Intercalated Metal Organic Gel as a Green Precursor of Fe Entrenched and Fe Distributed N-Doped Mesoporous Graphitic Carbon for Oxygen Reduction Reaction Shijina, K. Illathvalappil, R. Kurungot, S. Nair, Balagopal Mohamed, A. Yamaguchi, T. Anilkumar, G. Hareesh, U. Sailaja, G. Herein, we present Metal-Organic Gel intercalated with chitosan, a green” precursor for the synthesis of intrinsic N-doped Fe entrenched (CHI-TMA-Fe-CW) and Fe distributed mesoporous graphitic carbon structures (CHI-TMA-Fe-CW-M1) with appreciable Oxygen Reduction Reaction (ORR) activity in alkaline medium. Modulation of the synthetic protocol as a function of reaction kinetics and gelation time while maintaining identical pyrolysis conditions (900 °C, flowing N 2 atmosphere) improves the microstructure, surface area and Fe distribution of the graphitic structures (CHI-TMA-Fe-CW-M1). CHI-TMA-Fe-CW has a Fe entrenched graphitic nanocapsule like morphology while Fe distributed mesoporous graphitic carbon sheets, with a specific surface area value of 565 m 2 g -1 obtained by modulating the synthesis chemistry in CHI-TMA-Fe-CW-M1. The higher percentage of graphitic N in CHI-TMA-Fe-CW-M1 apparent from the XPS data validate that the modified synthetic method favours creation of more graphitic N sites contributing for better catalytic performance. CHI-TMA-Fe-CW-M1 catalyst exhibited comparable electrocatalytic activity with that of the commercially available Pt/C via an efficient four-electron-dominant ORR pathway with a positive onset potential value of 0.925 V vs RHE. Good durability of CHI-TMA-Fe-CW-M1 after 5000 cycles further confirm the prospects of MOG-chitosan and the feasibility to be used as a potential catalyst for ORR. 2017 Journal Article http://hdl.handle.net/20.500.11937/66833 10.1002/slct.201701416 Wiley - V C H Verlag GmbH & Co. KGaA restricted |
| spellingShingle | Shijina, K. Illathvalappil, R. Kurungot, S. Nair, Balagopal Mohamed, A. Yamaguchi, T. Anilkumar, G. Hareesh, U. Sailaja, G. Chitosan Intercalated Metal Organic Gel as a Green Precursor of Fe Entrenched and Fe Distributed N-Doped Mesoporous Graphitic Carbon for Oxygen Reduction Reaction |
| title | Chitosan Intercalated Metal Organic Gel as a Green Precursor of Fe Entrenched and Fe Distributed N-Doped Mesoporous Graphitic Carbon for Oxygen Reduction Reaction |
| title_full | Chitosan Intercalated Metal Organic Gel as a Green Precursor of Fe Entrenched and Fe Distributed N-Doped Mesoporous Graphitic Carbon for Oxygen Reduction Reaction |
| title_fullStr | Chitosan Intercalated Metal Organic Gel as a Green Precursor of Fe Entrenched and Fe Distributed N-Doped Mesoporous Graphitic Carbon for Oxygen Reduction Reaction |
| title_full_unstemmed | Chitosan Intercalated Metal Organic Gel as a Green Precursor of Fe Entrenched and Fe Distributed N-Doped Mesoporous Graphitic Carbon for Oxygen Reduction Reaction |
| title_short | Chitosan Intercalated Metal Organic Gel as a Green Precursor of Fe Entrenched and Fe Distributed N-Doped Mesoporous Graphitic Carbon for Oxygen Reduction Reaction |
| title_sort | chitosan intercalated metal organic gel as a green precursor of fe entrenched and fe distributed n-doped mesoporous graphitic carbon for oxygen reduction reaction |
| url | http://hdl.handle.net/20.500.11937/66833 |