Overcoming the HHV–Energy Recovery Tradeoff in Hydrothermal Carbonization of Water Hyacinth via Co-Biomass Selection and Citric Acid Catalysis. - Wutisirirattanachai, Tassapak; Kohira, Yudai; Lewoyehu, Mekuanint; Fentie, Desalew; Bhatia, Pranshu; Fujiwara, Masaaki; Addisu, Solomon; Sato, Shinjiro (Energies (19961073), 2026)