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Enhanced supercapacitance performance via surface roughness optimization using acidic etching
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DOI：10.1016/j.matchemphys.2026.132361.png)
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Abstract
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• Thin films of Ni@C nanocomposites had been prepared using the drop casting technique. • Enhancement in Crystallite Size and reduction in lattice strain had been observed with enhancement in surface roughness. • Maximum enhancement in specific capacitance of about 45.81% had been observed at a scan rate of 10 mV s−1. • Maximum Specific capacitance of about 389.822 F g−1 with maximum roughness of 381.3 nm had been observed for 3-min etched Ni@C nanocomposites.
Keywords:
Ni@C nanocomposites
surface roughness
specific capacitance
acidic etching
supercapacitor
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3.6K
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