Synthesis of Copper-doped MnO2 Electrode Materials by One-step Hydrothermal Method for High Performance
By adjusting the amount of Cu(NO3)2·3H2O, Cu2+-doped birnessite δ-MnO2 spherical substances were synthesized by a simple hydrothermal synthesis process without any templates and surfactants. The structure, morphology, and specific surface area were characterized by XRD, SEM, TEM and BET. Further stu...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Slovenian Chemical Society
2019-09-01
|
| Series: | Acta Chimica Slovenica |
| Subjects: | |
| Online Access: | https://journals.matheo.si/index.php/ACSi/article/view/4937 |
| _version_ | 1818573603992502272 |
|---|---|
| author | Dongxia An Yu Zhang Hong Zhang Gang Ma Cuimiao Zhang Zhiguang Ma |
| author_facet | Dongxia An Yu Zhang Hong Zhang Gang Ma Cuimiao Zhang Zhiguang Ma |
| author_sort | Dongxia An |
| collection | DOAJ |
| description | By adjusting the amount of Cu(NO3)2·3H2O, Cu2+-doped birnessite δ-MnO2 spherical substances were synthesized by a simple hydrothermal synthesis process without any templates and surfactants. The structure, morphology, and specific surface area were characterized by XRD, SEM, TEM and BET. Further study shows that the 0.25 mmol Cu-doped MnO2 sample is expected to provide higher specific capacitance (636.3 F g-1 at 1 A g-1 current density) compared with pure δ-MnO2 (335.6 F g-1 at the current density of 1 A g-1) and long-term cyclic stability (105.01 % capacitance retention after 1500 cycles at current density of 5 A g-1). Electrochemical impedance spectroscopy proved the low resistance characteristics of the prepared samples. All the results show that the copper-doped MnO2 material is not only low cost, but also of excellent electrochemical performance, thus possesses great potential in future energy development. |
| first_indexed | 2024-12-15T00:13:34Z |
| format | Article |
| id | doaj.art-a6601bdc2e244d209917025f3d1ba070 |
| institution | Directory Open Access Journal |
| issn | 1318-0207 1580-3155 |
| language | English |
| last_indexed | 2024-12-15T00:13:34Z |
| publishDate | 2019-09-01 |
| publisher | Slovenian Chemical Society |
| record_format | Article |
| series | Acta Chimica Slovenica |
| spelling | doaj.art-a6601bdc2e244d209917025f3d1ba0702022-12-21T22:42:30ZengSlovenian Chemical SocietyActa Chimica Slovenica1318-02071580-31552019-09-0166358459110.17344/acsi.2019.4937719Synthesis of Copper-doped MnO2 Electrode Materials by One-step Hydrothermal Method for High PerformanceDongxia AnYu ZhangHong ZhangGang MaCuimiao ZhangZhiguang MaBy adjusting the amount of Cu(NO3)2·3H2O, Cu2+-doped birnessite δ-MnO2 spherical substances were synthesized by a simple hydrothermal synthesis process without any templates and surfactants. The structure, morphology, and specific surface area were characterized by XRD, SEM, TEM and BET. Further study shows that the 0.25 mmol Cu-doped MnO2 sample is expected to provide higher specific capacitance (636.3 F g-1 at 1 A g-1 current density) compared with pure δ-MnO2 (335.6 F g-1 at the current density of 1 A g-1) and long-term cyclic stability (105.01 % capacitance retention after 1500 cycles at current density of 5 A g-1). Electrochemical impedance spectroscopy proved the low resistance characteristics of the prepared samples. All the results show that the copper-doped MnO2 material is not only low cost, but also of excellent electrochemical performance, thus possesses great potential in future energy development.https://journals.matheo.si/index.php/ACSi/article/view/4937Copper-doped MnO2hydrothermal methodsupercapacitor |
| spellingShingle | Dongxia An Yu Zhang Hong Zhang Gang Ma Cuimiao Zhang Zhiguang Ma Synthesis of Copper-doped MnO2 Electrode Materials by One-step Hydrothermal Method for High Performance Acta Chimica Slovenica Copper-doped MnO2 hydrothermal method supercapacitor |
| title | Synthesis of Copper-doped MnO2 Electrode Materials by One-step Hydrothermal Method for High Performance |
| title_full | Synthesis of Copper-doped MnO2 Electrode Materials by One-step Hydrothermal Method for High Performance |
| title_fullStr | Synthesis of Copper-doped MnO2 Electrode Materials by One-step Hydrothermal Method for High Performance |
| title_full_unstemmed | Synthesis of Copper-doped MnO2 Electrode Materials by One-step Hydrothermal Method for High Performance |
| title_short | Synthesis of Copper-doped MnO2 Electrode Materials by One-step Hydrothermal Method for High Performance |
| title_sort | synthesis of copper doped mno2 electrode materials by one step hydrothermal method for high performance |
| topic | Copper-doped MnO2 hydrothermal method supercapacitor |
| url | https://journals.matheo.si/index.php/ACSi/article/view/4937 |
| work_keys_str_mv | AT dongxiaan synthesisofcopperdopedmno2electrodematerialsbyonestephydrothermalmethodforhighperformance AT yuzhang synthesisofcopperdopedmno2electrodematerialsbyonestephydrothermalmethodforhighperformance AT hongzhang synthesisofcopperdopedmno2electrodematerialsbyonestephydrothermalmethodforhighperformance AT gangma synthesisofcopperdopedmno2electrodematerialsbyonestephydrothermalmethodforhighperformance AT cuimiaozhang synthesisofcopperdopedmno2electrodematerialsbyonestephydrothermalmethodforhighperformance AT zhiguangma synthesisofcopperdopedmno2electrodematerialsbyonestephydrothermalmethodforhighperformance |