Ni-Coated Diamond-like Carbon-Modified TiO<sub>2</sub> Nanotube Composite Electrode for Electrocatalytic Glucose Oxidation
In this paper, a Ni and diamond-like carbon (DLC)-modified TiO<sub>2</sub> nanotube composite electrode was prepared as a glucose sensor using a combination of an anodizing process, electrodeposition, and magnetron sputtering. The composition and morphology of the electrodes were analyze...
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MDPI AG
2022-09-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/18/5815 |
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| author | Yi Kang Xuelei Ren Yejun Li Zhiming Yu |
| author_facet | Yi Kang Xuelei Ren Yejun Li Zhiming Yu |
| author_sort | Yi Kang |
| collection | DOAJ |
| description | In this paper, a Ni and diamond-like carbon (DLC)-modified TiO<sub>2</sub> nanotube composite electrode was prepared as a glucose sensor using a combination of an anodizing process, electrodeposition, and magnetron sputtering. The composition and morphology of the electrodes were analyzed by a scanning electron microscope and energy dispersive X-ray detector, and the electrochemical glucose oxidation performance of the electrodes was evaluated by cyclic voltammetry and chronoamperometry. The results show that the Ni-coated DLC-modified TiO<sub>2</sub> electrode has better electrocatalytic oxidation performance for glucose than pure TiO<sub>2</sub> and electrodeposited Ni on a TiO<sub>2</sub> electrode, which can be attributed to the synergistic effect between Ni and carbon. The glucose test results indicate a good linear correlation in a glucose concentration range of 0.99–22.97 mM, with a sensitivity of 1063.78 μA·mM<sup>−1</sup>·cm<sup>−2</sup> and a detection limit of 0.53 μM. The results suggest that the obtained Ni-DLC/TiO<sub>2</sub> electrode has great application potential in the field of non-enzymatic glucose sensors. |
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| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T23:03:12Z |
| publishDate | 2022-09-01 |
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| series | Molecules |
| spelling | doaj.art-a2d3eefed9d34013b8df3b530c86284d2023-11-23T17:59:21ZengMDPI AGMolecules1420-30492022-09-012718581510.3390/molecules27185815Ni-Coated Diamond-like Carbon-Modified TiO<sub>2</sub> Nanotube Composite Electrode for Electrocatalytic Glucose OxidationYi Kang0Xuelei Ren1Yejun Li2Zhiming Yu3School of Materials and Engineering, Central South University, Changsha 410083, ChinaSchool of Materials and Engineering, Central South University, Changsha 410083, ChinaSchool of Physics and Electronics, Central South University, Changsha 410083, ChinaSchool of Materials and Engineering, Central South University, Changsha 410083, ChinaIn this paper, a Ni and diamond-like carbon (DLC)-modified TiO<sub>2</sub> nanotube composite electrode was prepared as a glucose sensor using a combination of an anodizing process, electrodeposition, and magnetron sputtering. The composition and morphology of the electrodes were analyzed by a scanning electron microscope and energy dispersive X-ray detector, and the electrochemical glucose oxidation performance of the electrodes was evaluated by cyclic voltammetry and chronoamperometry. The results show that the Ni-coated DLC-modified TiO<sub>2</sub> electrode has better electrocatalytic oxidation performance for glucose than pure TiO<sub>2</sub> and electrodeposited Ni on a TiO<sub>2</sub> electrode, which can be attributed to the synergistic effect between Ni and carbon. The glucose test results indicate a good linear correlation in a glucose concentration range of 0.99–22.97 mM, with a sensitivity of 1063.78 μA·mM<sup>−1</sup>·cm<sup>−2</sup> and a detection limit of 0.53 μM. The results suggest that the obtained Ni-DLC/TiO<sub>2</sub> electrode has great application potential in the field of non-enzymatic glucose sensors.https://www.mdpi.com/1420-3049/27/18/5815composite electrodeDLC filmTiO<sub>2</sub> nanotubeNinon-enzymatic glucose sensor |
| spellingShingle | Yi Kang Xuelei Ren Yejun Li Zhiming Yu Ni-Coated Diamond-like Carbon-Modified TiO<sub>2</sub> Nanotube Composite Electrode for Electrocatalytic Glucose Oxidation Molecules composite electrode DLC film TiO<sub>2</sub> nanotube Ni non-enzymatic glucose sensor |
| title | Ni-Coated Diamond-like Carbon-Modified TiO<sub>2</sub> Nanotube Composite Electrode for Electrocatalytic Glucose Oxidation |
| title_full | Ni-Coated Diamond-like Carbon-Modified TiO<sub>2</sub> Nanotube Composite Electrode for Electrocatalytic Glucose Oxidation |
| title_fullStr | Ni-Coated Diamond-like Carbon-Modified TiO<sub>2</sub> Nanotube Composite Electrode for Electrocatalytic Glucose Oxidation |
| title_full_unstemmed | Ni-Coated Diamond-like Carbon-Modified TiO<sub>2</sub> Nanotube Composite Electrode for Electrocatalytic Glucose Oxidation |
| title_short | Ni-Coated Diamond-like Carbon-Modified TiO<sub>2</sub> Nanotube Composite Electrode for Electrocatalytic Glucose Oxidation |
| title_sort | ni coated diamond like carbon modified tio sub 2 sub nanotube composite electrode for electrocatalytic glucose oxidation |
| topic | composite electrode DLC film TiO<sub>2</sub> nanotube Ni non-enzymatic glucose sensor |
| url | https://www.mdpi.com/1420-3049/27/18/5815 |
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