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Materials 2015, 8(7), 4226-4238; doi:10.3390/ma8074226

Dihydrogen Phosphate Stabilized Ruthenium(0) Nanoparticles: Efficient Nanocatalyst for The Hydrolysis of Ammonia-Borane at Room Temperature

1
Department of Chemistry, Dicle University, Diyarbakir 21280, Turkey
2
Department of Chemistry, Middle East Technical University, Ankara 06800, Turkey
3
NanoMatCat Research Laboratory, Department of Chemistry, Yüzüncü Yıl University, Van 65080, Turkey
*
Author to whom correspondence should be addressed.
Academic Editor: Umit Demirci
Received: 29 May 2015 / Revised: 1 July 2015 / Accepted: 7 July 2015 / Published: 10 July 2015
(This article belongs to the Special Issue Hydrogen Storage Materials)
View Full-Text   |   Download PDF [513 KB, uploaded 10 July 2015]   |  

Abstract

Intensive efforts have been devoted to the development of new materials for safe and efficient hydrogen storage. Among them, ammonia-borane appears to be a promising candidate due to its high gravimetric hydrogen storage capacity. Ammonia-borane can release hydrogen on hydrolysis in aqueous solution under mild conditions in the presence of a suitable catalyst. Herein, we report the synthesis of ruthenium(0) nanoparticles stabilized by dihydrogenphosphate anions with an average particle size of 2.9 ± 0.9 nm acting as a water-dispersible nanocatalyst in the hydrolysis of ammonia-borane. They provide an initial turnover frequency (TOF) value of 80 min−1 in hydrogen generation from the hydrolysis of ammonia-borane at room temperature. Moreover, the high stability of these ruthenium(0) nanoparticles makes them long-lived and reusable nanocatalysts for the hydrolysis of ammonia-borane. They provide 56,800 total turnovers and retain ~80% of their initial activity even at the fifth catalytic run in the hydrolysis of ammonia-borane at room temperature. View Full-Text
Keywords: hydrogenphosphate; ammonia-borane; hydrolysis; catalyst; ruthenium nanoparticles hydrogenphosphate; ammonia-borane; hydrolysis; catalyst; ruthenium nanoparticles
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Durap, F.; Caliskan, S.; Özkar, S.; Karakas, K.; Zahmakiran, M. Dihydrogen Phosphate Stabilized Ruthenium(0) Nanoparticles: Efficient Nanocatalyst for The Hydrolysis of Ammonia-Borane at Room Temperature. Materials 2015, 8, 4226-4238.

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