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Journal of Materials Science
Erschienen in: Journal of Materials Science 8/2018

03.01.2018 | Composites

Electrochemical properties of Mg3MnNi2-x% polymethyl methacrylate-multiwalled carbon nanotubes (PMMA-MWCNTs) (x = 25, 50, 75, 100)

verfasst von: Qiuxia Chen, Yunfeng Zhu, Yao Zhang, Yana Liu, Jiguang Zhang, Zhibing Liu, Wei Chen, Liquan Li

Erschienen in: Journal of Materials Science | Ausgabe 8/2018

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Abstract

In this work, we report a novel core–shell-like structure of uniform coating PMMA-MWCNTs composite film on the surface of the Mg3MnNi2 alloy particles prepared by hydriding combustion synthesis. The structures and electrochemical performances of Mg3MnNi2 alloy with different PMMA-MWCNTs coating content have been studied in detail. Results show that the PMMA-MWCNTs composite film has no effect on the phase composition of Mg3MnNi2 alloy and the composite film has been successfully coated on the surface of Mg3MnNi2 alloy with a thickness of about 30 nm. In addition, MWCNTs are dispersed in the PMMA layer successfully, improving the electrochemical catalytic activity and working as a conductive path and a hydrogen diffusion channel as well. It is found that the coating of proper amount of PMMA-MWCNTs film can enhance obviously the cycling stability of the alloy electrode. The Mg3MnNi2-75% PMMA-MWCNTs sample exhibits the best overall electrochemical properties, with the best cycling stability, the optimal high-rate dischargeability, the maximum exchange current density and the minimum charge-transfer resistance (Rct).
Vorheriger Artikel In situ analysis of damage evolution in an Al/ MMC under tensile load by synchrotron X-ray refraction imaging
Nächster Artikel Hollow microsphere-infused porous poly(vinylidene fluoride)/multiwall carbon nanotube composites with excellent electromagnetic shielding and low thermal transport

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Metadaten
Titel
Electrochemical properties of Mg3MnNi2-x% polymethyl methacrylate-multiwalled carbon nanotubes (PMMA-MWCNTs) (x = 25, 50, 75, 100)
verfasst von
Qiuxia Chen
Yunfeng Zhu
Yao Zhang
Yana Liu
Jiguang Zhang
Zhibing Liu
Wei Chen
Liquan Li
Publikationsdatum
03.01.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 8/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1961-1

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