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Erschienen in: Journal of Materials Science: Materials in Electronics 14/2018

26.05.2018

Preparation of three-dimensional hollow graphene balls and simultaneous electrochemical determination of dopamine and uric acid

verfasst von: Hong Yan Yue, Shan Shan Song, Shuo Huang, Xin Gao, Bao Wang, En Hao Guan, Hong Jie Zhang, Peng Fei Wu, Xin Rui Guo

Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 14/2018

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Abstract

Nickel nanoparticles (Ni-NPs) were synthesized by the reduction reaction of NiCl2·6H2O, N2H4·H2O and NaOH, and then the graphene layers were coated on the surface of Ni-NPs by the carbide cladding method while triethylene glycol was used as carbon source. After etching Ni, the obtained 3D hollow graphene balls (HGBs) were sprayed onto the ITO coated glass to fabricate 3D HGBs/ITO electrode, which acted as a working electrode for determining dopamine and uric acid simultaneously. The results indicate that the multi-layered 3D HGBs maintain the original size of Ni-NPs (the diameter of ~ 100 nm) and have few defects. The 3D HGBs/ITO electrode exhibits a high sensitivity of 1.16 and 0.94 μA μM− 1 for detecting dopamine and uric acid, respectively. Also, it shows a low measured limit of detection, excellent selectivity, reproducibility and stability. It is potential for use in clinical research.

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Metadaten
Titel
Preparation of three-dimensional hollow graphene balls and simultaneous electrochemical determination of dopamine and uric acid
verfasst von
Hong Yan Yue
Shan Shan Song
Shuo Huang
Xin Gao
Bao Wang
En Hao Guan
Hong Jie Zhang
Peng Fei Wu
Xin Rui Guo
Publikationsdatum
26.05.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science: Materials in Electronics / Ausgabe 14/2018
Print ISSN: 0957-4522
Elektronische ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-018-9346-z

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