Ag(0) nanocatalyst stabilized with networks of p(SPA-co-AMPS) for the hydrogen generation process from ethylenediamine bisborane hydrolysis


Durgut S., Özay H.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.45, pp.17649-17661, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45
  • Publication Date: 2020
  • Doi Number: 10.1016/j.ijhydene.2020.04.248
  • Title of Journal : INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Page Numbers: pp.17649-17661
  • Keywords: Ethylenediamine bisborane, Hydrogen generation, Hydrogel, Silver, Ag(0), Catalyst, CORE-SHELL NANOPARTICLES, AMMONIA-BORANE, THERMAL DEHYDROGENATION, EXPERIMENTAL INSIGHTS, CATALYTIC HYDROLYSIS, EFFICIENT CATALYST, STORAGE MATERIALS, SUPPORT MATERIAL, GRAPHENE OXIDE, SILVER

Abstract

In this study, the hydrogen generation from the catalytic hydrolysis of the ethylenediamine bisborane (EDAB) was performed. For this purpose, the p(sulfopropyl acrylate potassium salt-co-2-acrylamido-2-methylpropansulfonic acid sodium salt)@Ag(0) (p(SPA-co-AMPS)@Ag) catalyst was prepared. Later the p(SPA-co-AMPS)@Ag containing Ag(0) particles with nanodimensions was used as catalyst in EDAB hydrolysis. Our study is the first in the literature from this aspect, and investigated in detail the effect of catalyst amount, reactive concentration, temperature and dry or swollen nature of the catalyst on the EDAB hydrolysis. At the end of the reaction series, the hydrolysis reaction of EDAB with p(SPA-co-AMPS)@Ag catalyst was determined to have activation energy (E-a) of 43.24 kJmol(-1). Additionally, the turn over frequency (TOF) was 0.560 mol H-2(mol Ag(0).min)(-1) at 30 degrees C. The p(SPA-co-AMPS)@Ag catalyst had perfect reusability with 95% of initial activity after the 5th use for the hydrogen generation from EDAB. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.