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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 2/2020

09.06.2020 | Original Paper: Nano-structured materials (particles, fibers, colloids, composites, etc.)

Synthesis of MnO2/PPy nanocomposites by novel emulsifying device and its electrochemical performances

verfasst von: Fangnan Liang, Zhiwei Liu, Youzhi Liu

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 2/2020

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Abstract

The manganese dioxide/polypyrrole (MnO2/PPy) nanocomposites were synthesized by miniemulsion polymerization (W/O), which prepared by impinging stream-rotating packed bed (IS-RPB), a novel emulsifying equipment. The obtained MnO2/PPy nanocomposites were characterized by HRTEM, DLS, and BET. The effects of high gravity factor, impact velocity, p-toluenesulfonic acid, potassium permanganate, and reaction time on the specific capacitance of MnO2/PPy nanocomposites were studied. Moreover, we investigated herein its electrochemical performances under suitable operating conditions by cyclic voltammetry, galvanostatic charge–discharge, electrochemical impedance spectroscopy, and cycling life. The results revealed that the obtained MnO2/PPy nanocomposites were flower-like spherical with a high specific surface area of 177.1 m2/g. Besides, the specific capacitance of MnO2/PPy nanocomposites was 231.9 F/g at 0.5 A/g. The electrochemical performances of MnO2/PPy nanocomposites were superior to that prepared MnO2. It is certain that IS-RPB could be used as an effective emulsifying device due to the process intensification and has great potential in industrial applications.
Vorheriger Artikel Efficient and recyclable photocatalytic degradation of methylene blue dye in aqueous solutions using nanostructured Cd1 − xCoxS films of different doping levels
Nächster Artikel Novel transportation layers of NiO and ZnO for the fabrication of perovskite solar cell for e-monitoring of healthcare

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Metadaten
Titel
Synthesis of MnO2/PPy nanocomposites by novel emulsifying device and its electrochemical performances
verfasst von
Fangnan Liang
Zhiwei Liu
Youzhi Liu
Publikationsdatum
09.06.2020
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 2/2020
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-020-05334-8

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