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Synthesis of Three Dimensional Nickel Cobalt Oxide Nanoneedles on Nickel Foam, Their Characterization and Glucose Sensing Application
- Source :
- Sensors (Basel, Switzerland), Sensors; Volume 14; Issue 3; Pages: 5415-5425, Sensors, Vol 14, Iss 3, Pp 5415-5425 (2014)
- Publication Year :
- 2014
- Publisher :
- Linköpings universitet, Fysik och elektroteknik, 2014.
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Abstract
- In the present work, NiCo2O4 nanostructures are fabricated in three dimensions (3D) on nickel foam by the hydrothermal method. The nanomaterial was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The nanostructures exhibit nanoneedle-like morphology grown in 3D with good crystalline quality. The nanomaterial is composed of nickel, cobalt and oxygen atoms. By using the favorable porosity of the nanomaterial and the substrate itself, a sensitive glucose sensor is proposed by immobilizing glucose oxidase. The presented glucose sensor has shown linear response over a wide range of glucose concentrations from 0.005 mM to 15 mM with a sensitivity of 91.34 mV/decade and a fast response time of less than 10 s. The NiCo2O4 nanostructures-based glucose sensor has shown excellent reproducibility, repeatability and stability. The sensor showed negligible response to the normal concentrations of common interferents with glucose sensing, including uric acid, dopamine and ascorbic acid. All these favorable advantages of the fabricated glucose sensor suggest that it may have high potential for the determination of glucose in biological samples, food and other related areas.
- Subjects :
- Materials science
Time Factors
Scanning electron microscope
Inorganic chemistry
chemistry.chemical_element
Biosensing Techniques
nickel cobalt oxide nanostructures
nickel foam
glucose sensor
potentiometric method
lcsh:Chemical technology
Biochemistry
Article
Analytical Chemistry
Nanomaterials
X-ray photoelectron spectroscopy
X-Ray Diffraction
Nickel
Teknik och teknologier
lcsh:TP1-1185
Glucose oxidase
Electrical and Electronic Engineering
Instrumentation
Cobalt oxide
biology
Photoelectron Spectroscopy
Reproducibility of Results
Oxides
Cobalt
Ascorbic acid
Atomic and Molecular Physics, and Optics
Nanostructures
Glucose
chemistry
Calibration
biology.protein
Potentiometry
Engineering and Technology
Nuclear chemistry
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Sensors (Basel, Switzerland), Sensors; Volume 14; Issue 3; Pages: 5415-5425, Sensors, Vol 14, Iss 3, Pp 5415-5425 (2014)
- Accession number :
- edsair.doi.dedup.....fffa6d2b95b1a62affdc0f4a6a6b7883