Synthesis of NiCo2O4 Nanostructures and Their Electrochemial Properties for Glucose Detection
| Autor: | Kyoung-Il Moon, Soo-Keun Park, Jong Cheol Kim, Sungwook Mhin, HyukSu Han, Kyu-Bong Jang, Kyoung Ryeol Park, Young Sik Song, Kang Min Kim, Jaewoong Lee, Soong-Keun Hyun, Jae Eun Jeon, Chisung Ahn, Sung-Chul Lim |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Nanostructure
Materials science General Chemical Engineering enzyme-free Spinel Nanoparticle engineering.material Electrochemistry Microstructure Chemical reaction Article nickel cobaltite Electrochemical gas sensor lcsh:Chemistry lcsh:QD1-999 Chemical engineering engineering General Materials Science Selectivity glucose sensor |
| Zdroj: | Nanomaterials Volume 11 Issue 1 Nanomaterials, Vol 11, Iss 55, p 55 (2021) |
| ISSN: | 2079-4991 |
| DOI: | 10.3390/nano11010055 |
| Popis: | In this work, we prepared spinel-type NiCo2O4 (NCO) nanopowders as a low-cost and sensitive electrochemical sensor for nonenzymatic glucose detection. A facile and simple chemical bath method to synthesize the NCO nanopowders is demonstrated. The effect of pH and annealing temperature on the formation mechanism of NCO nanoparticles was systematically investigated. Our studies show that different pHs of the precursor solution during synthesis result in different intermediate phases and relating chemical reactions for the formation of NCO nanoparticles. Different morphologies of the NCO depending on pHs are also discussed based on the mechanism of growth. Electrochemical performance of the prepared NCO was characterized towards glucose, which reveals that sensitivity and selectivity of the NCO are significantly related with the final microstructure combined with constituent species with multiple oxidation states in the spinel structure. |
| Databáze: | OpenAIRE |
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