A disposable and sensitive non-enzymatic glucose sensor based on 3D graphene/Cu2O modified carbon paper electrode
| Autor: | Weixuan Wu, Jiaying Zhao, Changjun Hou, Daidi Zhong, Xicheng Wu, Huisi Yang, Yian Hu, Yanli Qi, Danqun Huo, Jing Bao |
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| Rok vydání: | 2020 |
| Předmět: |
Graphene
010401 analytical chemistry Thermal decomposition Nanoparticle 02 engineering and technology Chemical vapor deposition 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry 0104 chemical sciences Analytical Chemistry law.invention chemistry.chemical_compound Chemical engineering chemistry law Specific surface area Nafion Electrode Environmental Chemistry Fiber 0210 nano-technology Spectroscopy |
| Zdroj: | Analytica Chimica Acta. 1135:12-19 |
| ISSN: | 0003-2670 |
| Popis: | Herein, a three-dimensional graphene wall (GWs) and nano-Cu2O modified carbon fiber paper (CFP) electrode were used to develop a disposable and sensitive non-enzymatic glucose sensor. This sensing interface of GWs/Cu2O consists of an interlaced CFP on which intercrossed graphene walls (GWs) were vertically tethered in situ by radio frequency plasma enhanced chemical vapor deposition (RF-PECVD), and Cu2O nanoparticles (NPs) were evenly grew on the 3D GWs layer and skeleton through the complete thermal decomposition of copper acetate (Cu (CH3COO)2) at high temperature. The CFP/GWs/Cu2O shows a large specific surface area and rich solution diffusion channels, which can expose more catalytic active sites without Nafion fixation film, thus greatly improving the electrocatalytic performance of this glucose sensor. The CFP/GWs/Cu2O sensor shows excellent catalytic performance to glucose with a linear detection range of 0.5 μM–5166 μM, LOD of 0.21 μM, and response time |
| Databáze: | OpenAIRE |
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