3D graphene foam as a monolithic and macroporous carbon electrode for electrochemical sensing
Graphene, a single-atom-thick monolayer of sp2 carbon atoms perfectly arranged in a honeycomb lattice, is an emerging sensing material because of its extraordinary properties, such as exceptionally high specific surface area, electrical conductivity, and electrochemical potential window. In this stu...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/99640 http://hdl.handle.net/10220/10264 |
| _version_ | 1811694826472603648 |
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| author | Dong, Xiaochen Wang, Xuewan Wang, Lianhui Song, Hao Zhang, Hua Huang, Wei Chen, Peng |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Dong, Xiaochen Wang, Xuewan Wang, Lianhui Song, Hao Zhang, Hua Huang, Wei Chen, Peng |
| author_sort | Dong, Xiaochen |
| collection | NTU |
| description | Graphene, a single-atom-thick monolayer of sp2 carbon atoms perfectly arranged in a honeycomb lattice, is an emerging sensing material because of its extraordinary properties, such as exceptionally high specific surface area, electrical conductivity, and electrochemical potential window. In this study, we demonstrate that three-dimensional (3D), macroporous, highly conductive, and monolithic graphene foam synthesized by chemical vapor deposition represents a novel architecture for electrochemical electrodes. Being employed as an electrochemical sensor for detection of dopamine, 3D graphene electrode exhibits remarkable sensitivity (619.6 μA mM–1 cm–2) and lower detection limit (25 nM at a signal-to-noise ratio of 5.6), with linear response up to 25 μM. And the oxidation peak of dopamine can be easily distinguished from that of uric acid – a common interferent to dopamine detection. We envision that the graphene foam provides a promising platform for the development of electrochemical sensors as well as other applications, such as energy storage and conversion. |
| first_indexed | 2024-10-01T07:13:45Z |
| format | Journal Article |
| id | ntu-10356/99640 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:13:45Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/996402020-06-01T10:01:30Z 3D graphene foam as a monolithic and macroporous carbon electrode for electrochemical sensing Dong, Xiaochen Wang, Xuewan Wang, Lianhui Song, Hao Zhang, Hua Huang, Wei Chen, Peng School of Chemical and Biomedical Engineering School of Materials Science & Engineering Graphene, a single-atom-thick monolayer of sp2 carbon atoms perfectly arranged in a honeycomb lattice, is an emerging sensing material because of its extraordinary properties, such as exceptionally high specific surface area, electrical conductivity, and electrochemical potential window. In this study, we demonstrate that three-dimensional (3D), macroporous, highly conductive, and monolithic graphene foam synthesized by chemical vapor deposition represents a novel architecture for electrochemical electrodes. Being employed as an electrochemical sensor for detection of dopamine, 3D graphene electrode exhibits remarkable sensitivity (619.6 μA mM–1 cm–2) and lower detection limit (25 nM at a signal-to-noise ratio of 5.6), with linear response up to 25 μM. And the oxidation peak of dopamine can be easily distinguished from that of uric acid – a common interferent to dopamine detection. We envision that the graphene foam provides a promising platform for the development of electrochemical sensors as well as other applications, such as energy storage and conversion. 2013-06-12T06:44:11Z 2019-12-06T20:09:46Z 2013-06-12T06:44:11Z 2019-12-06T20:09:46Z 2012 2012 Journal Article Dong, X., Wang, X., Wang, L., Song, H., Zhang, H., Huang, W., & et al. (2012). 3D Graphene Foam as a Monolithic and Macroporous Carbon Electrode for Electrochemical Sensing. ACS Applied Materials & Interfaces, 4(6), 3129-3133. 1944-8244 https://hdl.handle.net/10356/99640 http://hdl.handle.net/10220/10264 10.1021/am300459m en ACS applied materials & interfaces © 2012 American Chemical Society. |
| spellingShingle | Dong, Xiaochen Wang, Xuewan Wang, Lianhui Song, Hao Zhang, Hua Huang, Wei Chen, Peng 3D graphene foam as a monolithic and macroporous carbon electrode for electrochemical sensing |
| title | 3D graphene foam as a monolithic and macroporous carbon electrode for electrochemical sensing |
| title_full | 3D graphene foam as a monolithic and macroporous carbon electrode for electrochemical sensing |
| title_fullStr | 3D graphene foam as a monolithic and macroporous carbon electrode for electrochemical sensing |
| title_full_unstemmed | 3D graphene foam as a monolithic and macroporous carbon electrode for electrochemical sensing |
| title_short | 3D graphene foam as a monolithic and macroporous carbon electrode for electrochemical sensing |
| title_sort | 3d graphene foam as a monolithic and macroporous carbon electrode for electrochemical sensing |
| url | https://hdl.handle.net/10356/99640 http://hdl.handle.net/10220/10264 |
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