Journal
ELECTROANALYSIS
Volume 25, Issue 4, Pages 959-966Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201200479
Keywords
Electrochemical deposition; Reduced graphene oxide; Nickel nanoparticles; Nonenzymatic sensor; Glucose
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Funding
- National Natural Science Foundation of China [21275135]
- National Basic Research Program of China (973 Program) [2020CB933600]
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Electrochemical reduction and electrodeposition are two effective methods for the preparation of new nanomaterials for electrochemical sensing. In this work, the reduced graphene oxide-nickel nanoparticles composite (RGO-NiNPs) was synthesized using both methods mentioned above. The fabrication process was simple and easily performed. Then, the RGO-NiNPs composite was characterized by SEM, EDS, and XRD. Furthermore, for the strong catalytic ability of the high-valent oxyhydroxide species (NiOOH) formed in alkaline media, the composite was used as the matrix for nonenzymatic detection of glucose. Comparing with NiNPs modified glassy carbon electrode (NiNPs/GCE), the RGO-NiNPs/GCE showed better sensitivity and stability. A low detection limit of 0.1 mu M with a wide linear range from 2 mu M to 2.1mM (R=0.996) was obtained.
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