Pumice-Supported Ruthenium nanoparticles as highly effective and recyclable catalyst in the hydrolysis of methylamine borane

Dayan O., Kilicer A., Bulut A., Ceylan E., Tayfun U., Uzun O., ...More

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.52, pp.1-10, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 52
  • Publication Date: 2024
  • Doi Number: 10.1016/j.ijhydene.2022.07.116
  • Journal Name: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Page Numbers: pp.1-10
  • Ankara University Affiliated: Yes

Abstract

Pumice-supported Ruthenium nanoparticles were prepared by the impregnation-reduction method and investigated for hydrogen production in the methylamine borane (MeAB) hydrolysis reaction. The catalytic properties of this highly active Ru/Pumice catalyst were analyzed in terms of temperature (from 298 K to 328 K), substrate ([MeAB]) amount, metal loadings ([Ru]), and recyclability. In addition, the characterization of the obtained catalyst was investigated by inductively-coupled plasma optical emission spectroscopy (ICP-OES), powder X-ray diffraction (P-XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) imaging/spectroscopic techniques. The Ru/Pumice catalyst showed a superior initial TOF value (83.15 min-1 or 4989.30 h-1) in the MeAB hy-drolysis reaction, and also the activation parameters (Ea, til#, and tiS#) from the Arrhenius and Eyring-Polonyi equations were found to be 42.4 kJ/mol, 39.8 kJ/mol, and-110.07 J/ mol.K, respectively.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.