Akademik Veri Yönetim Sistemi
Biomass and Bioenergy, cilt.214, 2026 (SCI-Expanded, Scopus)
The development of efficient and stable catalysts for hydrogen generation via sodium borohydride (NaBH4) methanolysis is important for sustainable energy applications. In this study, a biomass-derived Ru/AC-ZSM composite catalyst was prepared using activated carbon obtained from poplar sawdust and ZSM as a multifunctional support. The optimized 5 wt% Ru/AC-ZSM catalyst exhibited a high hydrogen generation rate of 37.41 L/min.gcatalyst at 30 °C using 5 mg catalyst, 150 mg NaBH4, and 8 mL methanol. Kinetic analysis revealed a low activation energy of 10.6 kJ/mol, indicating efficient catalytic promotion of the methanolysis reaction. The catalyst also retained approximately 65% of its initial activity after five consecutive cycles, demonstrating acceptable operational stability. The enhanced performance is attributed to the synergistic interaction between highly dispersed Ru nanoparticles, defect-rich activated carbon, and the zeolitic framework of ZSM, which improves active-site accessibility and reactant activation. These results demonstrate that the Ru/AC-ZSM composite is a promising and sustainable catalyst for efficient hydrogen production via NaBH4 methanolysis.