Witri Wahyu Lestari, Disa Ayudia, Riandy Putra, Fauzan Ibnu Prihadiyono, Maulidan Firdaus, Venansia Avelia Rosari, Ubed SF Arrozi, Grandprix TM Kadja, Yudha P. Budiman
The objective of this research is to investigate the effect of palladium insertion into zirconium(IV)-based Metal-Organic Frameworks (MOFs) containing a benzene 1,3,5-benzenetricarboxylate organic linker [Pd/Zr6O4(OH)4(O2C2H3)6(BTC)2] or (Pd/Zr-BTC) on its structure and its ability to catalyze the hydrogenation process of citronellal. Zr-BTC was synthesized by a modulated-solvothermal method at 135 °C. Post-synthesis modification with Pd nanoparticle was conducted using the wet impregnation method with a concentration of 2.5% (w/w). Powder XRD analysis showed that the presence of Pd was identified by a new peak at 2θ = 40.0° and the decrease of Zr-BTC crystallinity. The presence of Pd also increases the irregularity of Zr-BTC morphology and contains an average particle size up to 16.58 ± 6.4 nm according to SEM and TEM analysis. Modification with Pd lead to a decrease in surface area, pore volume, and diameter of Zr-BTC up to 1095 m2/g, 0.15 cc/g, and 18.6 Å, respectively. Moreover, the addition of Pd does not affect the thermal stability of Zr-BTC. An examination of the hydrogenation of citronellal was carried out using two distinct setups. The first involved conducting reactions in a batch reactor system at a temperature of 80 °C and under a hydrogen pressure of 10 bar for a duration of 6 h. The second approach entailed performing reactions in a hydrogen-filled balloon under atmospheric pressure (1 atm) at 80 °C for a period of 6 h. The addition of Pd into Zr-BTC increases its activity up to 83.2%, and selectivity (up to 53.7%) in citronellal hydrogenation for both batch and balloon systems. Interestingly, the employment of batch reactors is found to be more effective. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023.
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36 A Kentingan, Jebres, Surakarta, 57126, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Palangka Raya, Kampus UPR Tunjung Nyaho, Palangka Raya, 73111, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of Malang, Jl. Semarang 5, East Java, Malang, 65145, Indonesia; Division of Inorganic and Physical Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung, 40132, Indonesia; Center for Catalysis and Reaction Engineering, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung, 40132, Indonesia; Research Center for Nano sciences and Nanotechnology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung, 40132, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang, 45363, Indonesia
