Facile synthesis of nanosized graphene/Nafion hybrid materials and their application in electrochemical sensing of nitric oxide
This paper presents the preparation of nanosized graphene hybridized with Nafion using a simple two step, sonication and hydrothermal process which successfully produced a new nanosized graphene-Nafion hybrid (G-Nf) with lateral dimensions as small as 18 nm based on AFM results. The novel G-Nf hybri...
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| Format: | Article |
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Royal Society of Chemistry
2015
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| _version_ | 1825721277380296704 |
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| author | Yusoff, N. Pandikumar, A. Marlinda, A.R. Huang, N.M. Lim, H.N. |
| author_facet | Yusoff, N. Pandikumar, A. Marlinda, A.R. Huang, N.M. Lim, H.N. |
| author_sort | Yusoff, N. |
| collection | UM |
| description | This paper presents the preparation of nanosized graphene hybridized with Nafion using a simple two step, sonication and hydrothermal process which successfully produced a new nanosized graphene-Nafion hybrid (G-Nf) with lateral dimensions as small as 18 nm based on AFM results. The novel G-Nf hybrids were used to modify the glassy carbon electrode (GCE) for the fabrication of nitric oxide (NO) electrochemical sensors where the optimum sensing response was achieved with a G-Nf hybrid synthesized after 16 h of hydrothermal treatment. Under the optimized experimental conditions, the GC/G-Nf (16 h) electrode showed an oxidation peak at 0.85 V in the presence of NO. It also demonstrated an excellent performance toward the detection of NO, with a limit of detection of 11.61 μM (S/N = 3) in a linear range of 0.05-0.45 mM. Moreover, this GC/G-Nf (16 h) electrode exhibited a higher sensitivity of approximately 62 μA mM-1 and had a great selectivity toward NO in the presence of interferents such as dopamine and ascorbic acid. The combination of nanosized graphene and Nafion generates a synergic effect which facilitates excellent electron-transfer processes between the electrolyte and the GCE thus improving the sensing performance of the fabricated modified electrode. |
| first_indexed | 2024-03-06T05:47:57Z |
| format | Article |
| id | um.eprints-19323 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:47:57Z |
| publishDate | 2015 |
| publisher | Royal Society of Chemistry |
| record_format | dspace |
| spelling | um.eprints-193232018-09-20T05:06:43Z http://eprints.um.edu.my/19323/ Facile synthesis of nanosized graphene/Nafion hybrid materials and their application in electrochemical sensing of nitric oxide Yusoff, N. Pandikumar, A. Marlinda, A.R. Huang, N.M. Lim, H.N. Q Science (General) QC Physics QD Chemistry This paper presents the preparation of nanosized graphene hybridized with Nafion using a simple two step, sonication and hydrothermal process which successfully produced a new nanosized graphene-Nafion hybrid (G-Nf) with lateral dimensions as small as 18 nm based on AFM results. The novel G-Nf hybrids were used to modify the glassy carbon electrode (GCE) for the fabrication of nitric oxide (NO) electrochemical sensors where the optimum sensing response was achieved with a G-Nf hybrid synthesized after 16 h of hydrothermal treatment. Under the optimized experimental conditions, the GC/G-Nf (16 h) electrode showed an oxidation peak at 0.85 V in the presence of NO. It also demonstrated an excellent performance toward the detection of NO, with a limit of detection of 11.61 μM (S/N = 3) in a linear range of 0.05-0.45 mM. Moreover, this GC/G-Nf (16 h) electrode exhibited a higher sensitivity of approximately 62 μA mM-1 and had a great selectivity toward NO in the presence of interferents such as dopamine and ascorbic acid. The combination of nanosized graphene and Nafion generates a synergic effect which facilitates excellent electron-transfer processes between the electrolyte and the GCE thus improving the sensing performance of the fabricated modified electrode. Royal Society of Chemistry 2015 Article PeerReviewed Yusoff, N. and Pandikumar, A. and Marlinda, A.R. and Huang, N.M. and Lim, H.N. (2015) Facile synthesis of nanosized graphene/Nafion hybrid materials and their application in electrochemical sensing of nitric oxide. Analytical Methods, 7 (8). pp. 3537-3544. ISSN 1759-9660, DOI https://doi.org/10.1039/c5ay00604j <https://doi.org/10.1039/c5ay00604j>. http://dx.doi.org/10.1039/c5ay00604j doi:10.1039/c5ay00604j |
| spellingShingle | Q Science (General) QC Physics QD Chemistry Yusoff, N. Pandikumar, A. Marlinda, A.R. Huang, N.M. Lim, H.N. Facile synthesis of nanosized graphene/Nafion hybrid materials and their application in electrochemical sensing of nitric oxide |
| title | Facile synthesis of nanosized graphene/Nafion hybrid materials and their application in electrochemical sensing of nitric oxide |
| title_full | Facile synthesis of nanosized graphene/Nafion hybrid materials and their application in electrochemical sensing of nitric oxide |
| title_fullStr | Facile synthesis of nanosized graphene/Nafion hybrid materials and their application in electrochemical sensing of nitric oxide |
| title_full_unstemmed | Facile synthesis of nanosized graphene/Nafion hybrid materials and their application in electrochemical sensing of nitric oxide |
| title_short | Facile synthesis of nanosized graphene/Nafion hybrid materials and their application in electrochemical sensing of nitric oxide |
| title_sort | facile synthesis of nanosized graphene nafion hybrid materials and their application in electrochemical sensing of nitric oxide |
| topic | Q Science (General) QC Physics QD Chemistry |
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