Porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications
© 2017 Elsevier Ltd In this work, a novel porphyrinic metal-organic framework-based composite has been successfully synthesized by a simple one-step solvothermal method through growing Zr-PorMOF on macroporous carbon (MPC). Porphyrin-base MOFs combining the structural adjustable of MOFs and the spec...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Pergamon
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/71180 |
| _version_ | 1848762410922409984 |
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| author | Yin, D. Liu, Jian Bo, X. Li, M. Guo, L. |
| author_facet | Yin, D. Liu, Jian Bo, X. Li, M. Guo, L. |
| author_sort | Yin, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 Elsevier Ltd In this work, a novel porphyrinic metal-organic framework-based composite has been successfully synthesized by a simple one-step solvothermal method through growing Zr-PorMOF on macroporous carbon (MPC). Porphyrin-base MOFs combining the structural adjustable of MOFs and the specific catalytic activity of biomimetic catalysts play an important role in electrocatalysis. A series of characterization show that the roles of MPC as follow: (1) MPC could avoid the agglomeration of Zr-PorMOF particles and increase the specific surface area; (2) MPC could improve the electrochemical stability of Zr-PorMOF particles; (3) MPC could reduce the electron transfer resistance. Therefore, MPC plays the role of the conductive bridges to provide facile charge transport. The obtained Zr-PorMOF/MPC composites exhibit much better electrocatalytic activity for the reduction of hydrogen peroxide (H2O2) than the pristine Zr-PorMOF due to the synergy of Zr-PorMOF and MPC. This enzyme-free H2O2sensor shows two linear relationships in the ranges 0.5–137 µM (R2 = 0.991, sensitivity = 66 µA mM-1) and 137–3587 µM (R2 = 0.993, sensitivity = 16 µA mM-1), with a low over-potential at -0.2 V, a fast response time within 1 s and a low limit of detection (LOD) of 0.18 µM. Moreover, Zr-PorMOF/MPC composites were used to simultaneously detect uric acid (UA), xanthine (XA) and hypoxanthine (HX). These three substances are degradation products of purine metabolism. In addition, Zr-PorMOF/MPC composites can be used to develop multifunctional biosensors. |
| first_indexed | 2025-11-14T10:47:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-71180 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:47:08Z |
| publishDate | 2017 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-711802018-12-13T09:35:02Z Porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications Yin, D. Liu, Jian Bo, X. Li, M. Guo, L. © 2017 Elsevier Ltd In this work, a novel porphyrinic metal-organic framework-based composite has been successfully synthesized by a simple one-step solvothermal method through growing Zr-PorMOF on macroporous carbon (MPC). Porphyrin-base MOFs combining the structural adjustable of MOFs and the specific catalytic activity of biomimetic catalysts play an important role in electrocatalysis. A series of characterization show that the roles of MPC as follow: (1) MPC could avoid the agglomeration of Zr-PorMOF particles and increase the specific surface area; (2) MPC could improve the electrochemical stability of Zr-PorMOF particles; (3) MPC could reduce the electron transfer resistance. Therefore, MPC plays the role of the conductive bridges to provide facile charge transport. The obtained Zr-PorMOF/MPC composites exhibit much better electrocatalytic activity for the reduction of hydrogen peroxide (H2O2) than the pristine Zr-PorMOF due to the synergy of Zr-PorMOF and MPC. This enzyme-free H2O2sensor shows two linear relationships in the ranges 0.5–137 µM (R2 = 0.991, sensitivity = 66 µA mM-1) and 137–3587 µM (R2 = 0.993, sensitivity = 16 µA mM-1), with a low over-potential at -0.2 V, a fast response time within 1 s and a low limit of detection (LOD) of 0.18 µM. Moreover, Zr-PorMOF/MPC composites were used to simultaneously detect uric acid (UA), xanthine (XA) and hypoxanthine (HX). These three substances are degradation products of purine metabolism. In addition, Zr-PorMOF/MPC composites can be used to develop multifunctional biosensors. 2017 Journal Article http://hdl.handle.net/20.500.11937/71180 10.1016/j.electacta.2017.06.176 Pergamon restricted |
| spellingShingle | Yin, D. Liu, Jian Bo, X. Li, M. Guo, L. Porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications |
| title | Porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications |
| title_full | Porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications |
| title_fullStr | Porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications |
| title_full_unstemmed | Porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications |
| title_short | Porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications |
| title_sort | porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications |
| url | http://hdl.handle.net/20.500.11937/71180 |