The first catalytic hydrolysis of ethylenediamine bisborane with hydrogel-supported metallic nanoparticles


ENGIN M., ÖZAY Ö.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.43, no.32, pp.15083-15094, 2018 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 43 Issue: 32
  • Publication Date: 2018
  • Doi Number: 10.1016/j.ijhydene.2018.06.050
  • Journal Name: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.15083-15094
  • Keywords: Ethylene diamine bisborane, Catalytic hydrolysis, Hydrogen production, Catalyst, Hydrogel composite, SODIUM-BOROHYDRIDE HYDROLYSIS, AMMONIA-BORANE, THERMAL DEHYDROGENATION, EFFICIENT CATALYST, DIAMINE BISBORANE, REUSABLE CATALYST, HYDRAZINE BORANE, GENERATION, STORAGE, EVOLUTION

Abstract

Ethylene diamine bisborane (EDB) was synthesized in a single step as the hydrogen storage material. The synthesized compound was firstly used in the literature for the production of hydrogen gas by catalytic hydrolysis reaction. Cu, Co and Ni nanoparticles with average sizes of 75-150 nm formed in p(acrylicacid-co-vinylimidazole) hydrogel network structures were used as catalysts for the hydrolysis reaction. The effect of the parameters such as catalyst type, EDB concentration, catalyst concentration, temperature and solvent environment on the catalytic hydrolysis reaction of EDB was investigated. In the activity tests for the catalyst, it was determined that the catalyst had a loss of only 15% in activity even at the end of 5 cycles. The activation energies of hydrolysis reaction were calculated as 39.42 skJmol(-1), 44.77 kJmol(-1) and 47.48 kJmol(-1) for Cu, Co and Ni hydrogel composite catalyst, respectively. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.