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Facile growth of Cu2O hollow cubes on reduced graphene oxide with remarkable electrocatalytic performance for non-enzymatic glucose detection.
- Source :
-
New Journal of Chemistry . 9/7/2017, Vol. 41 Issue 17, p9223-9229. 7p. - Publication Year :
- 2017
-
Abstract
- In this work, cuprous oxide (Cu2O) hollow cubes were synthesized on reduced graphene oxide (RGO) nanosheets by a facile one-pot refluxing approach. The as-prepared Cu2O/RGO nanocomposites were characterized by X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy. It was revealed that Cu2O with a well-defined hollow cubic morphology is homogeneously dispersed on the surface of RGO nanosheets. The electrocatalytic properties of Cu2O/RGO nanocomposites for glucose oxidation were investigated by cyclic voltammetry and chronoamperometry. It was found that the constructed glucose sensor has a wide linear range of 0.01–9.0 mM (R2 = 0.996) with a high sensitivity of 813.713 μA cm−2 mM−1 and a low detection limit of 0.44 μM based on signal/noise = 3. Compared to bare Cu2O and previously reported Cu2O-based glucose sensors, the as-prepared Cu2O/RGO nanocomposite glucose sensor showed remarkably enhanced electrocatalytic activity. In addition, the electrode also exhibited an excellent anti-interference ability. The excellent electrocatalytic performance together with simple and low-cost preparation makes Cu2O/RGO nanocomposites attractive for glucose sensor application. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GRAPHENE oxide
*CUPROUS oxide
*TRANSMISSION electron microscopy
Subjects
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 41
- Issue :
- 17
- Database :
- Academic Search Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 126779479
- Full Text :
- https://doi.org/10.1039/c7nj01952a