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Issue 2, 2012
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Size-controllable APTS stabilized ruthenium(0) nanoparticles catalyst for the dehydrogenation of dimethylamineborane at room temperature

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Abstract

Dimethylamineborane, (CH3)2NHBH3, has been considered as one of the attractive materials for the efficient storage of hydrogen, which is still one of the key issues in the “Hydrogen Economy”. In a recent communication we have reported the synthesis and characterization of 3-aminopropyltriethoxysilane stabilized ruthenium(0) nanoparticles with the preliminary results for their catalytic performance in the dehydrogenation of dimethylamineborane at room temperature. Herein, we report a complete work including (i) effect of initial [APTS]/[Ru] molar ratio on both the size and the catalytic activity of ruthenium(0) nanoparticles, (ii) collection of extensive kinetic data under non-MTL conditions depending on the substrate and catalyst concentrations to define the rate law of Ru(0)/APTS-catalyzed dehydrogenation of dimethylamineborane at room temperature, (iii) determination of activation parameters (Ea, ΔH# and ΔS#) for Ru(0)/APTS-catalyzed dehydrogenation of dimethylamineborane; (iv) demonstration of the catalytic lifetime of Ru(0)/APTS nanoparticles in the dehydrogenation of dimethylamineborane at room temperature, (v) testing the bottlability and reusability of Ru(0)/APTS nanocatalyst in the room-temperature dehydrogenation of dimethylamineborane, (vi) quantitative carbon disulfide (CS2) poisoning experiments to find a corrected TTO and TOF values on a per-active-ruthenium-atom basis, (vii) a summary of extensive literature review for the catalysts tested in the catalytic dehydrogenation of dimethylamineborane as part of the results and discussions.

Graphical abstract: Size-controllable APTS stabilized ruthenium(0) nanoparticles catalyst for the dehydrogenation of dimethylamine–borane at room temperature

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Publication details

The article was received on 07 Jul 2011, accepted on 27 Sep 2011 and first published on 03 Nov 2011


Article type: Paper
DOI: 10.1039/C1DT11290B
Citation: Dalton Trans., 2012,41, 590-598
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    Size-controllable APTS stabilized ruthenium(0) nanoparticles catalyst for the dehydrogenation of dimethylamineborane at room temperature

    M. Zahmakıran, K. Philippot, S. Özkar and B. Chaudret, Dalton Trans., 2012, 41, 590
    DOI: 10.1039/C1DT11290B

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