Electrochemical Detection of H₂O₂ Using Copper Oxide-Reduced Graphene Oxide Heterostructure.
| Autor: | Kumar JS; Surface Engineering & Tribology Division, CSIR-Central Mechanical Engineering Research Institute, Durgapur 713209, India., Ghosh S; Surface Engineering & Tribology Division, CSIR-Central Mechanical Engineering Research Institute, Durgapur 713209, India., Murmu NC; Surface Engineering & Tribology Division, CSIR-Central Mechanical Engineering Research Institute, Durgapur 713209, India., Mandal N; Academy of Scientific and Innovative Research (AcSIR), CSIR-CMERI Campus, Durgapur 713209, India., Kuila T; Surface Engineering & Tribology Division, CSIR-Central Mechanical Engineering Research Institute, Durgapur 713209, India. |
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| Jazyk: | angličtina |
| Zdroj: | Journal of nanoscience and nanotechnology [J Nanosci Nanotechnol] 2019 Aug 01; Vol. 19 (8), pp. 5295-5302. |
| DOI: | 10.1166/jnn.2019.16834 |
| Abstrakt: | Three dimensional heterostructure of CuO nanoparticle decorated reduced graphene oxide (rGO) was prepared by a facile and cost-effective technique. The structure and electrochemical properties of the CuO-rGO heterostructure composites were evaluated by various techniques. Transmission electron microscopy image analysis confirmed the presence of CuO nanoparticles onto the surface of the rGO sheets. It was also noticed that the electrochemical properties were dependent on the morphology of the heterostructure. The CuO-rGO heterostructure showed better hydrogen peroxide sensing performance as compared to the pure CuO nanoparticle. The sensitivity and limit of detection (LoD) were found to be 57.6 μ A mM -1 cm -2 and 4.3 nM. The CuO-rGO heterostructure also showed good selectivity in the presence of various interfering electrolytes like ascorbic acid, dopamine, uric acid and glucose. |
| Databáze: | MEDLINE |
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