Solvothermal synthesis of Ag@Fe3O4 nanosphere and its application as hydrazine sensor

Solvothermal synthesis of Ag@Fe3O4 nanosphere and its application as hydrazine sensor Colloids and Surfaces A 538 (2018) 371–377 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Solvothermal synthesis of Ag@Fe O nanosphere and its application as 3 4 hydrazine sensor Yuhua Dong, Ziyin Yang, Qinglin Sheng, Jianbin Zheng Institute of Analytical Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University, Xi’an, Shaanxi 710069, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: In this paper, Ag@Fe O nanospheres were prepared by a simple solvothermal approach. Scanning electron 3 4 Electrocatalysis microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and energy dispersive X-ray Core/shell nanosphere spectroscopy (EDX) were used to study the morphology and structure of Ag@Fe O .By fixing Ag@Fe O core/ 3 4 3 4 Ag@Fe O 3 4 shell nanospheres on glassy carbon electrode, a novel non-enzymatic hydrazine sensor was fabricated to catalyze Hydrazine the oxidation of hydrazine. Electrochemical investigations suggested that the sensor had a wonderful electro- catalytic activity for hydrazine oxidation. The catalytic current was linear with the concentration of hydrazine from 0.25 μM to 3.4 mM (R = 0.9984). The detection limit of the sensor was 0.06 μM with a signal-to-noise ratio −1 −2 (S/N) of 3. The http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Colloids and Surfaces A: Physicochemical and Engineering Aspects Elsevier

Solvothermal synthesis of Ag@Fe3O4 nanosphere and its application as hydrazine sensor

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0927-7757
eISSN
1873-4359
D.O.I.
10.1016/j.colsurfa.2017.11.024
Publisher site
See Article on Publisher Site

Abstract

Colloids and Surfaces A 538 (2018) 371–377 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Solvothermal synthesis of Ag@Fe O nanosphere and its application as 3 4 hydrazine sensor Yuhua Dong, Ziyin Yang, Qinglin Sheng, Jianbin Zheng Institute of Analytical Science, Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Northwest University, Xi’an, Shaanxi 710069, China GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: In this paper, Ag@Fe O nanospheres were prepared by a simple solvothermal approach. Scanning electron 3 4 Electrocatalysis microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD) and energy dispersive X-ray Core/shell nanosphere spectroscopy (EDX) were used to study the morphology and structure of Ag@Fe O .By fixing Ag@Fe O core/ 3 4 3 4 Ag@Fe O 3 4 shell nanospheres on glassy carbon electrode, a novel non-enzymatic hydrazine sensor was fabricated to catalyze Hydrazine the oxidation of hydrazine. Electrochemical investigations suggested that the sensor had a wonderful electro- catalytic activity for hydrazine oxidation. The catalytic current was linear with the concentration of hydrazine from 0.25 μM to 3.4 mM (R = 0.9984). The detection limit of the sensor was 0.06 μM with a signal-to-noise ratio −1 −2 (S/N) of 3. The

Journal

Colloids and Surfaces A: Physicochemical and Engineering AspectsElsevier

Published: Feb 5, 2018

References

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