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One-pot organometallic synthesis of alumina-embedded Pd nanoparticles

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Abstract

Herein we report a one pot organometallic strategy to access alumina-embedded Pd nanoparticles. Unexpectedly, the decomposition of the organometallic complex tris(dibenzylideneacetone)dipalladium(0), Pd2(dba)3, by dihydrogen in the presence of aluminum isopropoxide, Al(iPrO)3, and without extra stabilizers, was found to be an efficient method to generate a Pd colloidal solution. Careful characterization studies revealed that the so-obtained Pd nanoparticles were stabilized by an aluminum isopropoxide tetramer and 1,5-diphenyl-pentan-3-one, which was produced after reduction of the dba ligand from the organometallic precursor. Moreover, calcination of the obtained nanomaterial in air at 773 K for 2 h resulted in a nanocomposite material containing Pd nanoparticles embedded in Al2O3. This stabilization strategy opens new possibilities for the preparation of transition metal nanoparticles embedded in oxides.

Graphical abstract: One-pot organometallic synthesis of alumina-embedded Pd nanoparticles

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Publication details

The article was received on 31 Jul 2017, accepted on 23 Sep 2017 and first published on 25 Sep 2017


Article type: Paper
DOI: 10.1039/C7DT02792C
Citation: Dalton Trans., 2017, Advance Article
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    One-pot organometallic synthesis of alumina-embedded Pd nanoparticles

    N. J. S. Costa, L. L. R. Vono, R. Wojcieszak, É. Teixiera-Neto, K. Philippot and L. M. Rossi, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C7DT02792C

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