Flower-like mesoporous nano NiCo2O4 -decorated ERGO/Ni-NiO foam as electrode materials for supercapacitor
Source abstract
Abstract
Abstract A new and applicable method for the synthesis of flower-like NiCo2O4 was developed based on the electrochemical method of chronoamperometry and subsequent heat treatment. This synthesis involved electrochemical deposition of nickel and cobalt hydroxide on ERGO/Ni-NiO and heat treatment for conversion of hydroxide to oxide. The crystalline structure and electrochemical performance of flower-like 3D NiCo2O4 were manipulated by varying the potential of deposition. The optimized nanocomposite at the potential of −1.0 V vs. saturated calomel electrode (SCE) had the highest surface area (85 m2/g). The smart combination of NiCo2O4 and electrochemically reduced graphene oxide (ERGO) on nickel-nickel oxide (Ni-NiO) foam showed a remarkable synergy effect and demonstrated a high specific capacitance and cycling stability improved performance. This new material not only exhibited a specific capacitance of over 2461 F/g, but after 4000 cycles, it maintains 94% of its specific capacitance.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advancements in Battery Materials · Electrocatalysts for Energy Conversion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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