Open access
Oct 2026
Upcycling Coffee Waste Into AC/NiO Electrodes for Supercapacitors
The conversion of spent coffee grounds into electrochemically active materials offers a route to integrate biomass waste valorization with aqueous energy storage. In this study, activated carbon derived from coffee‐ground waste (CGW‐AC) was prepared by KOH activation and subsequently combined with nickel oxide (NiO...
E. Nursanto, Gabriella Kuswadi, Rajwinderdeep Kaur et al.
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