Preparation and detailed characterization of zirconia nanopowder supported rhodium (0) nanoparticles for hydrogen production from the methanolysis of methylamine-borane in room conditions


KANAT M., Karataş Y., Gülcan M., ANIL B.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.43, no.50, pp.22548-22556, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 43 Issue: 50
  • Publication Date: 2018
  • Doi Number: 10.1016/j.ijhydene.2018.10.130
  • Journal Name: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.22548-22556
  • Keywords: Rhodium, Hydrogen, Zirconia nanopowder, Methylamine-borane, Methanolysis, CORE-SHELL NANOPARTICLES, IN-SITU SYNTHESIS, AMMONIA-BORANE, HYDROLYTIC DEHYDROGENATION, EFFICIENT CATALYST, AMINE-BORANES, GRAPHENE, GENERATION, TEMPERATURE, SIZE
  • Van Yüzüncü Yıl University Affiliated: Yes

Abstract

Uniformly dispersed Rh (0) nanoparticles supported on zirconia nanopowder were synthesized by a two-step and simple ex-situ method summarized by mixing rhodium (III) chloride hydrate with zirconia (nano-ZrO2) aqueous solution in ambient conditions followed by reduction with NaBH4. The ex-situ prepared nano-ZrO2 supported Rh (0) nano-particles (Rh/nano-ZrO2) were characterized by various spectroscopic methods, including TEM, TEM-EDX, HR-TEM, P-XRD, XPS and ICP-OES. The catalytic activity of Rh (0) nano-particles is 1050 h(-1) in terms of initial turnover frequency (TOF), which is the first study in the literature to produce hydrogen by catalytic methanolysis of methylamine-borane. In addition, the catalytic methanolysis of methylamine-borane by using Rh (0) nanoparticles was carried out in different catalyst/substrate concentrations and different temperatures to reveal rate equation and kinetic parameters. Consequently, Rh (0) nanoparticles are taken into account as an encouraging catalyst for the methanolysis of methylamine-borane and for providing a more fertile hydrogen storage gain in fuel cell operations. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.