Silvester Tursiloadi, Aan Wahyuni, Lenny Marlinda, Muhammad Safaat, Latifa Hauli, Wiyanti Fransisca Manulang, Amalia Kurnia Amin, Deni Shidqi Khaerudini, Muhammad Al Muttaqii
Using hydrogen as an energy source still needs improvement, especially in storing hydrogen. Zeolite is a material with a large surface area and high porosity. When NaOH is added to natural zeolite Bogor, it breaks down into microporous (2 nm) and mesoporous (2–50 nm) zeolite. This zeolite with two different sizes of pores is called hierarchical zeolite. The wet impregnation method mixed Ni with zeolite using Ni(NO3).6H2O, which lets H2 adsorb through a spillover mechanism. The characterization of the materials was analyzed using a Particle Size Analyzer (PSA), X-ray diffraction (XRD), and a Surface Area Analyzer (SAA). Temperature-programmed desorption-H2 (TPD-H2) determined the adsorption capacity for H2 gas. The adsorption capacity of H2 for different adsorption times (30, 45, 60, 75, and 90 min) was 0.1745, 0.3620, 0.7624, 0.2333, and 0.1802wt%, respectively. The highest adsorption capacity is 0.7624 wt.% with 60 min of adsorption time. When Ni metal was added to zeolite, it blocked or clogged the pores, lowering the adsorption capacity to 0.1405 wt.% and making H2 adsorption less efficient. © 2023, Rasayan Journal of Chemistry, c/o Dr. Pratima Sharma. All rights reserved.
Research Center for Chemistry, National Research and Innovation Agency of Indonesia (BRIN), Kawasan Puspiptek, Serpong, Banten, Tangerang Selatan, 15314, Indonesia; Department of Chemistry, Faculty of Science and Technology, University of Jambi University, 36361, Indonesia; Research Center for Advanced Materials, National Research and Innovation Agency of Indonesia (BRIN), Kawasan Puspiptek, Serpong, Banten, Tangerang Selatan, 15314, Indonesia; Chemical Engineering Department, Faculty of Engineering, Widya Mandala Surabaya Catholic University, Surabaya, 60112, Indonesia