Fabrication of 2D layered structure of rGO@Bi2O2CO3@NiCo-LDHs composite electrode for aqueous asymmetric supercapacitor
| العنوان: | Fabrication of 2D layered structure of rGO@Bi2O2CO3@NiCo-LDHs composite electrode for aqueous asymmetric supercapacitor |
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| المؤلفون: | Jing-Jing Zheng, Li-Na Xiao, Zhi-Qiang Hou, Xiao-Bin Zhang, Zhen-Dong Li, Zhi-Guang Yang, Luo-Xi Wang, Shu-Jing Liu |
| المصدر: | Chemical Papers. 76:277-286 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Supercapacitor, Aqueous solution, Materials science, Fabrication, General Chemical Engineering, General Chemistry, Electrolyte, Electrochemistry, Biochemistry, Capacitance, Industrial and Manufacturing Engineering, Energy storage, Chemical engineering, Electrode, Materials Chemistry |
| الوصف: | Two-dimensional layered structure of rGO@Bi2O2CO3@NiCo-LDHs as positive material of supercapacitor is fabricated using the simple hydrothermal reaction, freeze-drying technology, and heat treatment process. The corresponding electrode exhibits a maximum specific capacity of 1147 F/g at 0.5 A/g and 82.2% capacity retention after 1000 times charging and discharging at 10 A/g. Additionally, negative material of rGO film is also prepared, which has a higher specific capacity of 354 F/g than that of other carbon materials. To obtain a high performance of supercapacitor device, an asymmetric supercapacitor of rGO//rGO@Bi2O2CO3@NiCo-LDHs is assembled based on rGO@Bi2O2CO3@NiCo-LDHs, rGO film, and 2 M KOH electrolyte. The testing data show that the maximum specific capacitance and energy density of asymmetric supercapacitor are 85 F/g and 23.14 Wh/kg, respectively. Simultaneously, it also shows the good electrochemical stability, remaining 80% capacity after 3000 cycles. This means that rGO@Bi2O2CO3@NiCo-LDHs could be regarded as a promising electrode material for energy storage devices. |
| تدمد: | 2585-7290 0366-6352 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::d364efc0f41ed37da33c25a076729e51Test https://doi.org/10.1007/s11696-021-01861-yTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........d364efc0f41ed37da33c25a076729e51 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 25857290 03666352 |
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