Effect of soft template on NiMn-LDH grown on nickel foam for battery-type electrode materials
| Autor: | Jiabao Liu, Li Gao, Xing Tong, Enshan Han, Xu Yang, Yahong Tian, Shunpan Qiao, Yanzhen He |
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| Rok vydání: | 2021 |
| Předmět: |
Supercapacitor
Materials science Polyvinylpyrrolidone General Chemical Engineering General Engineering General Physics and Astronomy chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Polyvinyl alcohol 0104 chemical sciences chemistry.chemical_compound Nickel chemistry Chemical engineering Electrode medicine Hydroxide General Materials Science Sodium dodecyl sulfate 0210 nano-technology medicine.drug |
| Zdroj: | Ionics. 27:1451-1463 |
| ISSN: | 1862-0760 0947-7047 |
| DOI: | 10.1007/s11581-021-03930-4 |
| Popis: | Nickel-manganese layered double hydroxide (NiMn-LDH) is successfully synthesized on nickel foam by hydrothermal method, with cetyltrimethylammonium bromide (CTAB), polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), and sodium dodecyl sulfate (SDS) as template agents. The prepared NiMn-LDH materials with different morphology exhibit high capacity and cycle stability. In particular, the P-NM material fabricated by choosing PVP as template agents presents a high specific capacity of 692.8 C g−1 at 1 A g−1 and excellent durability (81.3% capacity retention after 2000 cycles). Besides, the hybrid supercapacitor (HSC) device based on P-NM and activated carbon electrode delivers an energy density of 57.71 Wh kg−1 at a power density of 798.41 W kg−1, and satisfactory cycle stability (capacity retention 70.27% after 2000 cycles). The excellent electrochemical properties of NiMn-LDH materials indicate the potential applications as electrode materials in hybrid supercapacitor. |
| Databáze: | OpenAIRE |
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