Marigold micro-flower like NiCo 2 O 4 grown on flexible stainless-steel mesh as an electrode for supercapacitors

Nanostructured NiCo O is a promising material for energy storage systems. Herein, we report the binder-free deposition of porous marigold micro-flower like NiCo O (PNCO) on the flexible stainless-steel mesh (FSSM) as (PNCO@FSSM) electrode by simple chemical bath deposition. The SEM and EDS analysis...

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Veröffentlicht in:RSC advances 2021-01, Vol.11 (6), p.3666-3672
Hauptverfasser: Kamble, Gokul P, Kashale, Anil A, Rasal, Akash S, Mane, Seema A, Chavan, Rutuja A, Chang, Jia-Yaw, Ling, Yong-Chien, Kolekar, Sanjay S, Ghule, Anil V
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container_issue 6
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container_title RSC advances
container_volume 11
creator Kamble, Gokul P
Kashale, Anil A
Rasal, Akash S
Mane, Seema A
Chavan, Rutuja A
Chang, Jia-Yaw
Ling, Yong-Chien
Kolekar, Sanjay S
Ghule, Anil V
description Nanostructured NiCo O is a promising material for energy storage systems. Herein, we report the binder-free deposition of porous marigold micro-flower like NiCo O (PNCO) on the flexible stainless-steel mesh (FSSM) as (PNCO@FSSM) electrode by simple chemical bath deposition. The SEM and EDS analysis revealed the marigold micro-flowers like morphology of NiCo O and its elemental composition. The porous nature of the electrode is supported by the BET surface area (100.47 m g ) and BJH pore size diameter (∼1.8 nm) analysis. This PNCO@FSSM electrode demonstrated a specific capacitance of 530 F g at a high current density of 6 mA cm and revealed 90.5% retention of specific capacitance after 3000 cycles. The asymmetric supercapacitor device NiCo O //rGO within a voltage window of 1.4 V delivered a maximum energy density of 41.66 W h kg at a power density of 3000 W kg . The cyclic stability study of this device revealed 73.33% capacitance retention after 2000 cycles. These results indicate that the porous NiCo O micro-flowers electrode is a promising functional material for the energy storage device.
doi_str_mv 10.1039/D0RA09524A
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title Marigold micro-flower like NiCo 2 O 4 grown on flexible stainless-steel mesh as an electrode for supercapacitors
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