Synthesis and Characterization of Nickel-doped Manganese Dioxide Electrode Materials for Supercapacitors
Nickel-doped manganese dioxide (Ni-MnO2) synthesized by sol-gel method has been used as an electrode material for supercapacitors. The structure and electrochemical properties of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry (CV), g...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2019-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://doi.org/10.1051/e3sconf/20197903002 |
| _version_ | 1818846298069008384 |
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| author | Dong Jie Hou Zhenzhong Zhao Qiuli Yang Qinghao |
| author_facet | Dong Jie Hou Zhenzhong Zhao Qiuli Yang Qinghao |
| author_sort | Dong Jie |
| collection | DOAJ |
| description | Nickel-doped manganese dioxide (Ni-MnO2) synthesized by sol-gel method has been used as an electrode material for supercapacitors. The structure and electrochemical properties of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectrometry (EIS). Results showed that the nickel-doped manganese dioxide sample exhibited irregular particles with the diameter of about 500 nm. The crystallographic structure of MnO2 was the poorly crystallized γ-MnO2. The doping ratio had a great influence on the electrochemical properties of the materials. When the molar ratio of Ni/Mn was 3/100, the specific capacitance of Ni-MnO2 achieved to 252.61 F/g. After 2000 charge/discharge cycles, the specific capacitance of Ni-MnO2 was still maintained at 74.36%, which was attributed to its excellent cycling stability. |
| first_indexed | 2024-12-19T05:43:19Z |
| format | Article |
| id | doaj.art-8f0c72268aa94884b082f17413eb019a |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-19T05:43:19Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-8f0c72268aa94884b082f17413eb019a2022-12-21T20:33:57ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01790300210.1051/e3sconf/20197903002e3sconf_arfee2018_03002Synthesis and Characterization of Nickel-doped Manganese Dioxide Electrode Materials for SupercapacitorsDong JieHou ZhenzhongZhao QiuliYang QinghaoNickel-doped manganese dioxide (Ni-MnO2) synthesized by sol-gel method has been used as an electrode material for supercapacitors. The structure and electrochemical properties of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectrometry (EIS). Results showed that the nickel-doped manganese dioxide sample exhibited irregular particles with the diameter of about 500 nm. The crystallographic structure of MnO2 was the poorly crystallized γ-MnO2. The doping ratio had a great influence on the electrochemical properties of the materials. When the molar ratio of Ni/Mn was 3/100, the specific capacitance of Ni-MnO2 achieved to 252.61 F/g. After 2000 charge/discharge cycles, the specific capacitance of Ni-MnO2 was still maintained at 74.36%, which was attributed to its excellent cycling stability.https://doi.org/10.1051/e3sconf/20197903002 |
| spellingShingle | Dong Jie Hou Zhenzhong Zhao Qiuli Yang Qinghao Synthesis and Characterization of Nickel-doped Manganese Dioxide Electrode Materials for Supercapacitors E3S Web of Conferences |
| title | Synthesis and Characterization of Nickel-doped Manganese Dioxide Electrode Materials for Supercapacitors |
| title_full | Synthesis and Characterization of Nickel-doped Manganese Dioxide Electrode Materials for Supercapacitors |
| title_fullStr | Synthesis and Characterization of Nickel-doped Manganese Dioxide Electrode Materials for Supercapacitors |
| title_full_unstemmed | Synthesis and Characterization of Nickel-doped Manganese Dioxide Electrode Materials for Supercapacitors |
| title_short | Synthesis and Characterization of Nickel-doped Manganese Dioxide Electrode Materials for Supercapacitors |
| title_sort | synthesis and characterization of nickel doped manganese dioxide electrode materials for supercapacitors |
| url | https://doi.org/10.1051/e3sconf/20197903002 |
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