Zeolite confined palladium(0) nanoclusters as effective and reusable catalyst for hydrogen generation from the hydrolysis of ammonia-borane

Rakap M., ÖZKAR S.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.35, sa.3, ss.1305-1312, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 35 Sayı: 3
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.ijhydene.2009.11.056
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1305-1312
  • Anahtar Kelimeler: Zeolite, Palladium, Nanoclusters, Ammonia-borane, Hydrolysis, Hydrogen generation, STABILIZED RUTHENIUM(0), COBALT(0) NANOCLUSTERS, THERMAL-DECOMPOSITION, DEHYDROGENATION, DISSOCIATION, RELEASE, STORAGE, SYSTEM
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Zeolite confined palladium(0) nanoclusters were prepared by a two step procedure: incorporation of Pd2+ ions into the zeolite-Y by ion-exchange followed by the reduction of Pd2+ ions in the supercages of zeolite-Y with sodium borohydride at room temperature. Zeolite confined palladium(0) nanoclusters are stable enough to be isolated as solid materials and characterized by ICP-OES, XRD, HRTEM, SEM, X-ray photoelectron spectroscopy and N-2 adsorption technique. These nanoclusters are isolable, redispersible and reusable as an active catalyst in the hydrolysis of ammonia-borane solution. Zeolite confined palladium(0) nanoclusters provide 15,600 turnovers in hydrogen generation from the hydrolysis of ammonia-borane at 25.0 +/- 0.1 degrees C. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.