Shi Wee Yee, Fazira Ilyana Abdul Razak, Suhaila Sapari, Hadi Nur, Ghozlan Elbashir Amer, Siti Salwa Alias
Palladium-graphene oxide (Pd-GO) composites show promise as catalysts for alkene hydrogenation, but challenges such as metal particle agglomeration and limited conductivity hinder their widespread use. In this study, Pd-GO and polyvinylpyrrolidone-stabilized Pd-GO (Pd-PVP/GO) composites were synthesized and characterized using FTIR, XRD, SEM, EDX, and HRTEM. The incorporation of PVP as a stabilizing and capping agent was found to significantly improve the dispersion an reduce agglomeration of Pd nanoparticles in Pd-PVP/GO. Catalytic performance evaluation in the hydrogenation of 1-octene under an external electric field (EEF) revealed enhanced activity for both composites, with Pd-GO showing the highest conversion efficiency. Computational studies further confirmed that the improved reactivity of Pd-GO is attributed to its smaller band gap and favourable electron density distribution upon addition of Pd. The synergistic effect between Pd-GO and EEF highlights the potential of electric field-assisted catalysis in alkene hydrogenation. this work provides valuable insights into the development of high-performance, sustainable catalysts for industrial hydrogenation processes. © 2025 Elsevier B.V.
Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor, UTM Skudai, 81310, Malaysia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jawa Timur, 65145, Indonesia; Center of Advanced Materials for Renewable Energy (CAMRY), Universitas Negeri Malang, Jawa Timur, 65145, Indonesia; Department of Chemistry, College of Education in Janzour, Tripoli University, Libya; Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, Johor, UTM Skudai, 81310, Malaysia; Department of Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
