Optimization of Nb2O5/g-C3N4/PPy as an electrode material for prevailing electrochemical performance
The use of a ternary composite employing carbon material, polymer and metal oxide can effectively increase the performance of an electrode material used in Supercapacitors. Herein, we have facilely synthesized ternary composites of Nb2O5/g-C3N4/PPy (NGP) via in-situ polymerization reaction by system...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2025-03-01
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| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2025.1511271/full |
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| Summary: | The use of a ternary composite employing carbon material, polymer and metal oxide can effectively increase the performance of an electrode material used in Supercapacitors. Herein, we have facilely synthesized ternary composites of Nb2O5/g-C3N4/PPy (NGP) via in-situ polymerization reaction by systematically varying the amount of niobium pentoxide. The structural and morphological analysis of samples were examined through XRD, TGA, FESEM and BET, confirming a specific surface area of 68.936 m2/g for NGP composite. Nb2O5 nanoparticles prevent the restacking of g-C3N4 sheets and PPy form a spongy globular morphology around this structure resulting in enhanced electrochemical performance. Electrochemical assessments of the optimized composite, including CV, GCD, and EIS, revealed a specific capacitance of 1,290.15 F/g at 2 mV/s in 1 M H2SO4, with an energy density of 75.25 W h/kg at a power density of 450.01 W/kg, demonstrating the efficacy of the ternary composite strategy in advancing supercapacitor electrode properties. After 5000 CV cycles and 1000 GCD cycles, the electrode retained a specific capacitance of 95% and 91% of its initial value, respectively. |
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| ISSN: | 2296-598X |