Palladium nanoparticles supported on cobalt(II,III) oxide nanocatalyst: High reusability and outstanding catalytic activity in hydrolytic dehydrogenation of ammonia borane


Akbayrak S., oezkar S.

JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol.626, pp.752-758, 2022 (Peer-Reviewed Journal) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 626
  • Publication Date: 2022
  • Doi Number: 10.1016/j.jcis.2022.06.135
  • Journal Name: JOURNAL OF COLLOID AND INTERFACE SCIENCE
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, PASCAL, Applied Science & Technology Source, CAB Abstracts, Chemical Abstracts Core, Chimica, Compendex, EMBASE, INSPEC, MEDLINE, Veterinary Science Database
  • Page Numbers: pp.752-758
  • Keywords: Palladium nanoparticles, Cobalt(II,III) oxide, Magnetic nanocatalyst, Dehydrogenation, Ammonia borane, HYDROGEN GENERATION, REUSABLE CATALYST, RU NANOCLUSTERS, H-2 GENERATION, GRAPHENE, EFFICIENT, PD, EVOLUTION, SURFACE, SYSTEM

Abstract

A new palladium(0) nanocatalyst is developed to enhance the catalytic efficiency of precious metal catalysts in hydrogen generation from the hydrolytic dehydrogenation of ammonia borane. Magnetically separable Pd-0/Co3O4 nanocatalyst can readily be obtained by the reduction of palladium(II) cations impregnated on cobalt(II, III) oxide at room temperature. The obtained Pd-0/Co3O4 nanocatalyst with 0.25% wt. palladium loading has outstanding catalytic activity with a record turnover frequency of 3048 min(-1) in the releasing H-2 from the hydrolysis of ammonia borane at 25.0 degrees C. They also provide out-standing reusability even after the tenth run of the hydrolysis of ammonia borane at 25.0 degrees. The high activity and superb stability of magnetically isolable Pd-0/Co3O4 nanoparticles are attributed to the favor-able interaction of palladium with the surface of reducible cobalt oxide. (C) 2022 Elsevier Inc. All rights reserved.