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Nanomaterials 2018, 8(2), 78; https://doi.org/10.3390/nano8020078

Catalytic Activity of Silicon Nanowires Decorated with Gold and Copper Nanoparticles Deposited by Pulsed Laser Ablation

1
Dipartimento di Chimica, Università di Bari, Via E. Orabona, 4, 70126 Bari, Italy
2
CNR-ICCOM, UOS Bari, Via E. Orabona, 4, 70126 Bari, Italy
3
CNR IPCF, Viale Ferdinando Stagno d’Alcontres, 37, 98158 Messina, Italy
4
Dipartimento di Fisica ed Astronomia, Università di Catania and INFN Sezione di Catania, Via Santa Sofia, 68, 95125 Catania, Italy
*
Authors to whom correspondence should be addressed.
Received: 15 January 2018 / Revised: 26 January 2018 / Accepted: 28 January 2018 / Published: 30 January 2018
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Abstract

Silicon nanowires (SiNWs) decorated by pulsed laser ablation with gold or copper nanoparticles (labeled as [email protected] and [email protected]) were investigated for their catalytic properties. Results demonstrated high catalytic performances in the Caryl–N couplings and subsequent carbonylations for gold and copper catalysts, respectively, that have no precedents in the literature. The excellent activity, attested by the very high turn over number (TON) values, was due both to the uniform coverage along the NW length and to the absence of the chemical shell surrounding the metal nanoparticles (MeNPs). A high recyclability was also observed and can be ascribed to the strong covalent interaction at the Me–Si interface by virtue of metal “silicides” formation. View Full-Text
Keywords: Caryl–N coupling; reduction of nitroarenes; Si nanowires; Au nanoparticles; Cu nanoparticles Caryl–N coupling; reduction of nitroarenes; Si nanowires; Au nanoparticles; Cu nanoparticles
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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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Casiello, M.; Picca, R.A.; Fusco, C.; D’Accolti, L.; Leonardi, A.A.; Lo Faro, M.J.; Irrera, A.; Trusso, S.; Cotugno, P.; Sportelli, M.C.; Cioffi, N.; Nacci, A. Catalytic Activity of Silicon Nanowires Decorated with Gold and Copper Nanoparticles Deposited by Pulsed Laser Ablation. Nanomaterials 2018, 8, 78.

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