Pd nanoreactors with excellent catalytic activity supported in p(SPA) hydrogel networks for hydrogen production from ethylenediamine bisborane

ÖZAY H., ILGIN P., SEZGİNTÜRK M. K., ÖZAY Ö.

RENEWABLE ENERGY, vol.155, pp.500-512, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 155
  • Publication Date: 2020
  • Doi Number: 10.1016/j.renene.2020.03.177
  • Journal Name: RENEWABLE ENERGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Communication Abstracts, Compendex, Environment Index, Geobase, Greenfile, Index Islamicus, INSPEC, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, DIALNET, Civil Engineering Abstracts
  • Page Numbers: pp.500-512
  • Keywords: Ethylenediamine bisborane, Palladium, Hydrogen production, Hydrolysis, Catalyst
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

In this study we synthesized Pd(0) nanoparticles with nearly 20 nm size using p(3-Sulfopropyl acrylate) (p(SPA)) hydrogel as support material. Pd@p(SPA) containing Pd (0) nanoparticles with nearly homogeneous distribution was characterized structurally with TEM, XRD, XPS and elemental mapping. The Pd@p(SPA) was used for the catalytic hydrolysis reaction of ethylenediamine bisborane (EDAB). A series of reactions were completed by changing parameters like the catalyst amount, EDAB concentration and temperature. The Pd@p(SPA) was determined to have turnover frequency (TOF) value of 354 mol H-2.molPd(0)(-1).h(-1) at 30 degrees C for the hydrolysis reaction of EDAB. The activation parameters for the reaction were E-a = 67.79 kJmo1(-1), Delta H-# = 65.15 kJmol(-1) and Delta S-# = -103.26 Jmol(-1) K-1. Pd@p(SPA) also had excellent reusability for the hydrolysis of EDAB. Even after ten reaction cycles, Pd@p(SPA) had 87% catalytic activity. At the same time after four months of storage in an aqueous medium, Pd@p(SPA) still had 100% catalytic activity. (C) 2020 Elsevier Ltd. All rights reserved.