High-Porosity Hydrochar From Oil Palm Empty Fruit Bunches Via Single-Step Hydrolytic Agent-Assisted Hydrothermal Carbonization. Indonesian Journal of Science and Technology, [S. l.], v. 9, n. 3, p. 709–720, 2025. Disponível em: https://ejournal.kjpupi.id/index.php/ijost/article/view/395.. Acesso em: 15 jul. 2025.