Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 89, Issue 1-2, Pages 104-110Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2008.12.004
Keywords
Ammonia-borane; Hydrogen generation; Hydrolysis; Zeolite; Rhodium; Nanoclusters
Funding
- Turkish Academy of Sciences
- National Boron Research Institute [2008-C0146]
- TUBITAK
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Zeolite framework stabilized rhodium(0) nanoclusters; were prepared by a two steps procedure: incorporation of Rh3+ ions into the Zeolite-Y by ion-exchange followed by in situ reduction of Rh3+ ions during the catalytic hydrolysis of ammonia-borane. They are stable enough to be isolated as solid materials and characterized by HRTEM, XPS, XRD, SEM, EDX, and N-2 adsorption. These nanoclusters are isolable, bottleable, redispersible, and reusable as an active catalyst in the hydrolysis of ammonia-borane even at low temperatures. Zeolite framework stabilized rhodium(0) nanoclusters; provide exceptional catalytic activity (TOF = 92 mol H-2/mol Rh min) and unprecedented lifetime (TTON = 47200 mol H-2/mol Rh) in the hydrolysis of ammonia-borane at 25 +/- 0.1 degrees C. (C) 2009 Elsevier B.V. All rights reserved.
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