Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide
An organic-metal hybrid film based on nitrogen-doped graphene-silver nanodendrites (Ag-NG) was fabricated on an indium tin oxide (ITO) electrode using a simple electrophoretic and electrochemical sequential deposition approach. The microwave-assisted method was utilized for the synthesis of nitrogen...
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| Format: | Article |
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Elsevier
2015
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| author | Tajabadi, M.T. Basirun, Wan Jefrey Lorestani, F. Zakaria, Rozalina Baradaran, S. Amin, Yusoff Mohd Mahmoudian, M.R. Rezayi, M. Sookhakian, M. |
| author_facet | Tajabadi, M.T. Basirun, Wan Jefrey Lorestani, F. Zakaria, Rozalina Baradaran, S. Amin, Yusoff Mohd Mahmoudian, M.R. Rezayi, M. Sookhakian, M. |
| author_sort | Tajabadi, M.T. |
| collection | UM |
| description | An organic-metal hybrid film based on nitrogen-doped graphene-silver nanodendrites (Ag-NG) was fabricated on an indium tin oxide (ITO) electrode using a simple electrophoretic and electrochemical sequential deposition approach. The microwave-assisted method was utilized for the synthesis of nitrogen-doped graphene. This method involves a three-step process consisting of graphite oxidation, exfoliation, and finally chemical reduction with the use of hydrazine as the reducing agent, which leads to the simultaneous reduction of graphene oxide and production of nitrogen-doped graphene. The morphology and structure of the as-fabricated electrode were determined by X-ray diffraction, field emission electron microscopy and transmission electron microscopy. The as-prepared Ag-NG-modified ITO electrode exhibited superior electrocatalytic activity toward hydrogen peroxide (H2O2) reduction, with a wide linear detection range of 100 μM to 80 mM (r = 0.9989) and a detection limit of 0.26 μM with a signal-to-noise ratio of 3. Furthermore, the fabricated non-enzymatic H2O2 electrochemical sensor exhibited excellent stability and reproducibility. |
| first_indexed | 2024-03-06T05:30:32Z |
| format | Article |
| id | um.eprints-12166 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:30:32Z |
| publishDate | 2015 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-121662019-01-31T07:31:09Z http://eprints.um.edu.my/12166/ Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide Tajabadi, M.T. Basirun, Wan Jefrey Lorestani, F. Zakaria, Rozalina Baradaran, S. Amin, Yusoff Mohd Mahmoudian, M.R. Rezayi, M. Sookhakian, M. Q Science (General) An organic-metal hybrid film based on nitrogen-doped graphene-silver nanodendrites (Ag-NG) was fabricated on an indium tin oxide (ITO) electrode using a simple electrophoretic and electrochemical sequential deposition approach. The microwave-assisted method was utilized for the synthesis of nitrogen-doped graphene. This method involves a three-step process consisting of graphite oxidation, exfoliation, and finally chemical reduction with the use of hydrazine as the reducing agent, which leads to the simultaneous reduction of graphene oxide and production of nitrogen-doped graphene. The morphology and structure of the as-fabricated electrode were determined by X-ray diffraction, field emission electron microscopy and transmission electron microscopy. The as-prepared Ag-NG-modified ITO electrode exhibited superior electrocatalytic activity toward hydrogen peroxide (H2O2) reduction, with a wide linear detection range of 100 μM to 80 mM (r = 0.9989) and a detection limit of 0.26 μM with a signal-to-noise ratio of 3. Furthermore, the fabricated non-enzymatic H2O2 electrochemical sensor exhibited excellent stability and reproducibility. Elsevier 2015-01-01 Article PeerReviewed Tajabadi, M.T. and Basirun, Wan Jefrey and Lorestani, F. and Zakaria, Rozalina and Baradaran, S. and Amin, Yusoff Mohd and Mahmoudian, M.R. and Rezayi, M. and Sookhakian, M. (2015) Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide. Electrochimica Acta, 151. pp. 126-133. ISSN 0013-4686, DOI https://doi.org/10.1016/j.electacta.2014.11.031 <https://doi.org/10.1016/j.electacta.2014.11.031>. http://www.sciencedirect.com/science/article/pii/S0013468614022269 http://doi.org/10.1016/j.electacta.2014.11.031 |
| spellingShingle | Q Science (General) Tajabadi, M.T. Basirun, Wan Jefrey Lorestani, F. Zakaria, Rozalina Baradaran, S. Amin, Yusoff Mohd Mahmoudian, M.R. Rezayi, M. Sookhakian, M. Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide |
| title | Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide |
| title_full | Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide |
| title_fullStr | Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide |
| title_full_unstemmed | Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide |
| title_short | Nitrogen-doped graphene-silver nanodendrites for the non-enzymatic detection of hydrogen peroxide |
| title_sort | nitrogen doped graphene silver nanodendrites for the non enzymatic detection of hydrogen peroxide |
| topic | Q Science (General) |
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