AMAKOROMO, T. E; COOKEY, P. S. Environmentally Friendly Synthesis of Hierarchical Porous Activated Carbon From Biomass Waste for Enhanced Supercapacitor Performance and Measured by Voltage Holding Method. American Journal of Innovation in Science and Engineering , [S. l.], v. 5, n. 1, p. 120–127, 2026. DOI: 10.54536/ajise.v5i1.7264. Disponível em: https://journals.e-palli.com/home/index.php/ajise/article/view/7264. Acesso em: 20 apr. 2026.