| Autor: |
Dr. Chao Li, Longbo Li, Qiong Liu, Lu Liu, Dr. Ruhua Zha, Dr. Yu Zhang, Dr. Qing Li, Prof. Linxia Fang |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
ChemElectroChem, Vol 9, Iss 21, Pp n/a-n/a (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2196-0216 |
| DOI: |
10.1002/celc.202200612 |
| Popis: |
Abstract The construction of integrated electrodes has been considered as a sensible strategy to boost the electrochemical properties of supercapacitors, which feature improved electron and ion transfer kinetics. In this work, a facile and easy‐controlled synthetic methodology has been established to assemble hierarchical honeycomb‐like copper‐molybdenum sulfide nanosheets (Cu−Mo−S NSs) on a three‐dimensional (3D) porous nickel foam substrate as integrated cathodes for hybrid supercapacitors (HSCs). As expected, the Cu−Mo−S NSs deliver exceptional electrochemical properties including an areal capacity of 1.39 mAh cm−2 at 2 mA cm−2, a superb rate capability (0.86 mAh cm−2 at 20 mA cm−2), and especially, a prominent cycling lifespan with 95.3 % capacity retention after 10000 cycles. Moreover, the as‐obtained Cu−Mo−S NSs are used as integrated cathodes to pair with iron oxide particles encapsulated in reduced graphene oxide (Fe2O3@rGO) as anodes for assembling Cu−Mo−S NSs//Fe2O3@rGO HSCs, which can deliver superior energy density of 79.04 Wh kg−1 and exceptional cyclic stability with 94.9 % capacity retention after 10000 cycles. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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