Electrochemical Deposition of Nickel Nanoparticles on Reduced Graphene Oxide Film for Nonenzymatic Glucose Sensing

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 proc...

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Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2013-04, Vol.25 (4), p.959-966
Main Authors: Zhang, Yue, Xiao, Xianping, Sun, Yujing, Shi, Yan, Dai, Haichao, Ni, Pengjuan, Hu, Jingting, Li, Zhuang, Song, Yonghai, Wang, Li
Format: Article
Language:English
Subjects:
Detection
Electrochemical deposition
Electrodes
Glassy carbon
Glucose
Graphene
Nanoparticles
Nickel
Nickel nanoparticles
Nonenzymatic sensor
Reduced graphene oxide
Reduction
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Summary: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 µM with a wide linear range from 2 µM to 2.1 mM (R=0.996) was obtained.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201200479