Synthesis and Electrochemical Properties of Co Doped MnO 2 Framework with Nanofibrous Structure
Source abstract
Abstract
Porous MnO 2 /Co composites with regular ellipse shape were synthesized through a facile hydrothermal‐decomposition method. Coembedded manganese oxalate precursors were firstly synthesized by a hydrothermal process. Then, Mn 2 O 3 /Co composites were obtained by a following precisely controlled decomposition process. After a further oxidation reaction, nanofibrous MnO 2 /Co composites were formed with well‐retained ellipse microframework inherited from precursors. X‐ray diffractometer ( XRD ), thermogravimetry and differential thermal analysis ( TG ‐ DTA ), field‐emission scanning electron microscope ( FESEM ), and energy dispersive spectroscope ( EDS ) were used to characterize the composition, structure, and morphology of all the samples. The electrochemical properties of MnO 2 /Co were studied using cyclic voltammetry and galvanostatic charge–discharge test in 1.0 mol/L Na 2 SO 4 electrolyte. Doping of Co in an appropriate range can improve the electrochemical performance of MnO 2 .
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Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advanced battery technologies research · Advancements in Battery Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, Yuquan Campus Zhejiang University Hangzhou 310027 People's Republic of China
Center of Materials Engineering Zhejiang Sci‐Tech University Hangzhou 310018 People's Republic of China
Funding
National Science Foundation of China
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