iğdır üniv. fen bil enst. der. Journal of the Institute of Science and Technology 2536-4618 Iğdır Üniversitesi 10.21597/jist.1662167 Organic Green Chemistry Organik Yeşil Kimya High Efficiency Palladium Nanoparticles Synthesized on Volcanic Ash for Hydrolytic Dehydrogenation of Sodium Borohydride https://orcid.org/0000-0003-0346-9958 Gözeten İbrahim YÜZÜNCÜ YIL ÜNİVERSİTESİ 12 01 2025 15 4 1480 1494 03 20 2025 05 05 2025 Copyright © 2011, Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi 2011 Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi

A large portion of the world's energy consumption is provided by fossil fuel sources. However, these fossil fuel resources are heading towards depletion and causing serious health problems to the environment. Accessing renewable environmentally friendly energy sources is of great importance. Recent studies highlight hydrogen energy as a very serious alternative energy source. We report the production of a new and highly active nanoparticle system consisting of palladium nanoparticles (Pd(0)NPs) impregnated on volcanic ash (VASH) for the hydrolytic dehydrogenation reaction of sodium borohydride (NaBH4). Pd(0)NPs on VASH can be reproducibly prepared by the conventional impregnation-reduction method. The catalytic performance of new Pd(0)@VASH NPs in the hydrolytic dehydrogenetin of NaBH4 was investigated. Characterization of Pd(0)@VASH nanoclusters was carried out using advanced techniques (ICP-OES, FTIR, SEM, SEM-EDX- Elemental mapping, N2 adsorption-desorption, XRD, XPS). Based on the data of the rich kinetic study, the activation parameters (Ea, ΔH≠ and ΔS≠) of the hydrolytic dehydrogenation reaction of sodium borohydride using the Pd(0)@VASH nanocatalyst were determined. The nature of the rate equation of the hydrolytic dehydrogenation reaction of sodium borohydride was elucidated.

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