Electrochemical properties of Y doped Mn3O4/graphene composites
In: Cailiao gongcheng, Jg. 48 (2020), Heft 2, S. 53-58
Online
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Zugriff:
Mn3O4 for supercapacitors was prepared by hydrothermal method at different reaction temperature and certain reaction time. Y doped and composite graphene were realized. The morph-ology, structure and electrochemical properties of the samples were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical workstation. The standard PDF cards 89-4837 are identical and the single phase Mn3O4 belongs to tetragonal system. The space group is I41/amd (No. 141). The prepared Mn3O4 is rod like particle. The specific capacitance of Y-Mn3O4 and Y-Mn3O4/graphene composites can reach 89 F·g-1 and 267 F·g-1 when Y content is 5%. The cyclic voltammetry curves of Y-Mn3O4/graphene composites are rectangular, indicating that Y doped and graphene loading synergistically improve the electrochemical performance of Mn3O4.
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Electrochemical properties of Y doped Mn3O4/graphene composites
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Autor/in / Beteiligte Person: | Le, CHEN ; Li-min, DONG ; Xin-xin, JIN ; Hai-yang, FU ; Xiao-yue, LI |
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Zeitschrift: | Cailiao gongcheng, Jg. 48 (2020), Heft 2, S. 53-58 |
Veröffentlichung: | Journal of Materials Engineering, 2020 |
Medientyp: | academicJournal |
ISSN: | 1001-4381 (print) |
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