Synthesis of PtxSn/MWCNTs and their Application in Non‐enzymatic Glucose and Hydrogen Peroxide Sensors

PtxSn/MWCNTs (x=1, 2, 3) nanocomposites were synthesized by chemical reduction. Comparing all of the materials, the results revealed that the best material was Pt3Sn/MWCNTs. The sensor based on Pt3Sn/MWCNTs exhibited excellent catalytic activities towards glucose and hydrogen peroxide. Sensing of gl...

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Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2017-03, Vol.29 (3), p.730-738
Main Authors: Min, Hui, Wu, Wenqin, Wu, Huimin, Wang, Shengfu, Feng, Chuanqi, Ding, Yu
Format: Article
Language:English
Subjects:
Glucose
Hydrogen peroxide
Non-enzymatic sensor
PtxSn/MWCNTs nanocomposites
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Summary:PtxSn/MWCNTs (x=1, 2, 3) nanocomposites were synthesized by chemical reduction. Comparing all of the materials, the results revealed that the best material was Pt3Sn/MWCNTs. The sensor based on Pt3Sn/MWCNTs exhibited excellent catalytic activities towards glucose and hydrogen peroxide. Sensing of glucose had a double‐linear range: one was between 50 μM and 550 μM, the other was between 1.35 mM and 16.35 mM. These were due to the fact that more and more intermediate species were adsorbed onto the electrode surface with increasing concentration of glucose, which limited the following glucose oxidation. Meanwhile, the sensor also had a linear response range between 0.05 mM and 18.95 mM for hydrogen peroxide. Furthermore, the glucose and hydrogen peroxide sensors exhibited excellent selectivity, stability, and reproducibility. Thus the sensors had potential utilities in the detection of glucose and hydrogen peroxide.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201600530