https://scholars.lib.ntu.edu.tw/handle/123456789/408686
標題: | Platinum nanoparticles decorated graphene nanoribbon with eco-friendly unzipping process for electrochemical sensors | 作者: | Lee M.-H. Wang S.-Y. Chiang W.-H. Feng H. Huang T.-Y. Yeh M.-H. Wu K.C.-W. Wu K.C.-W. |
關鍵字: | Electrochemical sensors;Graphene nanoribbons (GNRs);Hydrogen peroxide (H 2 O 2 );Longitudinal unzipping method;Platinum nanoparticles;£]-nicotinamide adenine dinucleotide (NADH) | 公開日期: | 2019 | 卷: | 96 | 起(迄)頁: | 566-574 | 來源出版物: | Journal of the Taiwan Institute of Chemical Engineers | 摘要: | In this study, an innovative large-scale synthesis of graphene nanoribbons (GNRs) with the eco-friendly unzipping process (only 0.1 mL H 2 SO 4 acid solution for 1.0 mg carbon nanotube) was proposed. Nearly 100% yields of carbon nanotube derived GNRs was achieved by the proposed procedure. Through the longitudinal unzipping method, abundant oxygen-based functional groups were formed at the edges of GNRs, thus offering tremendous advantages for material synthesis and design. Furthermore, the reduction of platinum precursor to form platinum nanoparticles (PtNPs) can be facilitated by the functional groups on GNR surface for specific sensing. In fact, PtNPs played a role in connecting nodes to synergize the synthesized composite. The composite of PtNPs/GNRs could be further utilized as non-enzymatic biosensing materials against either oxidative or reductive analyte. Two essential biomarkers, namely hydrogen peroxide (H 2 O 2 ) and £]-nicotinamide adenine dinucleotide (NADH), were chosen to prove the feasibility of the proposed biosensors. From the experimental results of the amperometric analysis, sensitivities of the modified PtNPs/GNRs electrode toward H 2 O 2 (378.5 ?A/mM/cm ¡V2 ) and NADH (724.3 ?A/mM/cm ¡V2 ) were obtained. The composite of PtNPs/GNRs has been verified to be a potential material for electrochemical biosensing with attractive sensitivity, selectivity, and stability. ? 2018 Taiwan Institute of Chemical Engineers |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/408686 | ISSN: | 18761070 | DOI: | 10.1016/j.jtice.2018.11.012 |
顯示於: | 化學工程學系 |
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