Enhanced electrochemical performance of activated carbon derived from Acacia catechu bark by KOH activation for supercapacitor applicationPawan Kumar Mishra, Sabin Aryal, Hari Bhakta Oli, Timila Shrestha, Thakur Sapkota, Ram Lal Swagat Shrestha and Deval Prasad BhattaraiE3S Web Conf., 610 (2025) 01004DOI: https://doi.org/10.1051/e3sconf/202561001004