Trimetallic PdRuNi nanocomposites decorated on graphene oxide: A superior catalyst for the hydrogen evolution reaction

Sen B., Demirkan B., Savk A., Gulbay S., ŞEN F.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.43, no.38, pp.17984-17992, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 43 Issue: 38
  • Publication Date: 2018
  • Doi Number: 10.1016/j.ijhydene.2018.07.122
  • Journal Name: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.17984-17992
  • Keywords: Microwave method, Nanocomposite, Outstanding performance, Uniform distribution, AMINE-BORANE ADDUCTS, AMMONIA-BORANE, DIMETHYLAMINE-BORANE, HIGHLY EFFICIENT, ROOM-TEMPERATURE, HYDROLYTIC DEHYDROGENATION, REUSABLE CATALYST, TRANSITION-METAL, ALCOHOL OXIDATION, GENERATION SYSTEM
  • Dokuz Eylül University Affiliated: Yes

Abstract

In this work, we report an improved catalyst which is superior to known heterogeneous catalysts for dehydrocoupling Of dimethylamine-borane (DMAB). The prepared three metallic nanocomposites consist of graphene oxide supported monodisperse palladium, ruthenium and nickel nanomaterials (3.78 +/- 0.43 nm). The monodisperse PdRuNi nano particles decorated with graphene oxide (PdRuNi@GO) were synthesized according to the microwave synthesis method and characterized by TEM (Transmisson Electron Microscopy), HR-TEM (High Resolution Transmisson Electron Microscopy), XPS (X-ray photoelectron spectroscopy), XRD (X-ray diffraction) and Raman spectroscopy. The prepared trimetallic nanocomposites have shown outstanding performance and stability as a catalyst for the dehydrocoupling of dimethylamine-borane. To the best of our knowledge, the prepared monodisperse PdRuNi@GO nanoparticles have one of the best catalysts with outstanding TOF (Turnover Frequency) value (737.05 1/h) and E-a (55.47 kJ/mol) (activation energy) among all catalysts prepared for dehydrogenation of dimethylamine-borane at low temperatures. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.