Willy Artha Wirawan, Dewi Sartika, Muji Setiyo, R.A. Ilyas
This study evaluates the electrochemical performance of two biomass-derived catalysts, Tectona grandis (TGAC) and Banana leaves (BLAC), in the hydrogen evolution reaction (HER) during water electrolysis. Activated carbon from both biomass sources was synthesized and used to support Fe₃O₄ nanoparticles. The results show that TGAC, with a higher surface area (154.2 m2/g) compared to BLAC (50.72 m2/g), significantly enhances hydrogen production efficiency. The interaction between Fe₃O₄ and TGAC, facilitated by smaller particle sizes and improved surface properties, greatly increases water dissociation efficiency. These findings emphasize the structure-activity relationship, demonstrating TGAC's superior electrochemical performance in HER benchmarking. © 2026 Elsevier B.V.
Mechanical Engineering Department, Faculty of Vocational Studies, Universitas Negeri Surabaya, Surabaya, 60231, Indonesia; Mechanical Engineering Department, PGRI University Banyuwangi, Banyuwangi, 68416, Indonesia; Department of Mechanical Engineering, Universitas Muhammadiyah Magelang, Magelang, 56172, Indonesia; Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor, 81310, Malaysia
