Hydrogen production via copper nanocatalysts stabilized by cyclen derivative hydrogel networks from the hydrolysis of ammonia borane and ethylenediamine bisborane


ÖZAY H., ILGIN P., ÖZAY Ö.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.45, no.35, pp.17613-17624, 2020 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 35
  • Publication Date: 2020
  • Doi Number: 10.1016/j.ijhydene.2020.04.194
  • Journal Name: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Page Numbers: pp.17613-17624
  • Keywords: Ammonia borane, Ethylenediamine bisborane, Catalyst, Hydrogen production, Copper, CATALYTIC HYDROLYSIS, EFFICIENT CATALYST, RUTHENIUM NANOPARTICLES, SUPPORT MATERIAL, GENERATION, DEHYDROGENATION, METHANOLYSIS, REDUCTION, EVOLUTION, FOAM

Abstract

In this study, p(AAm-co-TACYC) hydrogels were synthesized using TACYC crosslinker. The p(AAm-co-TACYC) hydrogel was used for preparation of Cu(0) nanoparticles as support material. The p(AAm-co-TACYC)@Cu was prepared by chemical reduction of Cu2+ ions in the p(AAm-co-TACYC) networks and was structurally characterized in detail. Later the catalytic activity of p(AAm-co-TACYC)@Cu was investigated for hydrogen production from AB and EDAB hydrolysis. Detailed kinetic studies were performed for both hydrogen storage materials. The p(AAm-co-TACYC)@Cu was a more active catalyst for the EDAB hydrolysis reaction. The E-a values of p(AAm-co-TACYC)@Cu for the AB and EDAB hydrolysis reactions were determined as 68.36 kJ mol(-1) and 39.07 kJ mol(-1), respectively. In addition to the perfect catalytic activity of p(AAm-co-TACYC)@Cu, it had good reusability. After ten consecutive uses for AB and EDAB hydrolysis, the p(AAm-co-TACYC)@Cu still had 88% and 85% of initial activity, respectively. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.