Ruthenium(0) nanoparticles supported on xonotlite nanowire: a long-lived catalyst for hydrolytic dehydrogenation of ammonia-borane

被引：63
作者：
Akbayrak, Serdar [1 ]
Ozkar, Saim [1 ]
机构：
[1] Middle E Tech Univ, Dept Chem, TR-06800 Ankara, Turkey
来源：
DALTON TRANSACTIONS | 2014年 / 43卷 / 04期
关键词：
METAL NANOCLUSTER FORMATION; CAPACITY HYDROGEN STORAGE; PALLADIUM(0) NANOCLUSTERS; REUSABLE CATALYST; FACILE SYNTHESIS; STABILIZED RUTHENIUM(0); ZEOLITE FRAMEWORK; ROOM-TEMPERATURE; GENERATION; EFFICIENT;
D O I：
10.1039/c3dt52701h
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Ruthenium(0) nanoparticles supported on xonotlite nanowire (Ru(0)@X-NW) were prepared by the ion exchange of Ru3+ ions with Ca2+ ions in the lattice of xonotlite nanowire followed by their reduction with sodium borohydride in aqueous solution at room temperature. Ru(0)@X-NW were characterized by a combination of advanced analytical techniques. The results show that (i) highly dispersed ruthenium(0) nanoparticles of 4.4 +/- 0.4 nm size were formed on the surface of xonotlite nanowire, (ii) Ru(0)@X-NW show high catalytic activity in hydrogen generation from the hydrolytic dehydrogenation of ammonia borane with a turnover frequency value up to 135 min(-1) at 25.0 +/- 0.1 degrees C. (iii) They provide unprecedented catalytic life time (TTO = 134,100) for hydrogen generation from the hydrolysis of ammonia borane at 25.0 +/- 0.1 degrees C. (iv) The results of a kinetic study on the hydrogen generation from the hydrolysis of ammonia borane were also reported including the activation energy of 77 +/- 2 kJ mol(-1) for this reaction.
引用
收藏
页码：1797 / 1805
页数：9
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