Synthesis of urchin-like NiCo2S4 electrode materials based on a two-step hydrothermal method for high-capacitance supercapacitors
This journal is © The Royal Society of Chemistry..
Transition metal sulfides have been considered as promising electrode materials for future super-capacitors due to their spinel structures and environmentally friendly properties. Among these materials, NiCo2S4 compounds exhibit high theoretical specific capacity but poor cycling performance. To address this issue, we synthesize several NiCo2S4 urchin balls. The NCS-1.5 nanospheres demonstrate a specific capacitance of 1352.2 F g-1 at a current density of 1 A g-1, and maintain high specific capacity after 10 000 charge-discharge cycles. An asymmetric capacitor assembled with the NCS-1.5 sample as the cathode and activated carbon as the anode achieve an energy density of 45.5 W h kg-1 at 2025 W kg-1. The urchin-like nanospheres also facilitate the combination with other materials, providing potential insights for the synthesis of supercapacitor electrode materials.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:14 |
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| Enthalten in: |
RSC advances - 14(2024), 14 vom: 20. März, Seite 9587-9593 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Tian, Jingyu [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 23.03.2024 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1039/d4ra00361f |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM370057325 |
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| 520 | |a Transition metal sulfides have been considered as promising electrode materials for future super-capacitors due to their spinel structures and environmentally friendly properties. Among these materials, NiCo2S4 compounds exhibit high theoretical specific capacity but poor cycling performance. To address this issue, we synthesize several NiCo2S4 urchin balls. The NCS-1.5 nanospheres demonstrate a specific capacitance of 1352.2 F g-1 at a current density of 1 A g-1, and maintain high specific capacity after 10 000 charge-discharge cycles. An asymmetric capacitor assembled with the NCS-1.5 sample as the cathode and activated carbon as the anode achieve an energy density of 45.5 W h kg-1 at 2025 W kg-1. The urchin-like nanospheres also facilitate the combination with other materials, providing potential insights for the synthesis of supercapacitor electrode materials | ||
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