期刊
NANOMATERIALS
卷 8, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/nano8020078
关键词
C-aryl-N coupling; reduction of nitroarenes; Si nanowires; Au nanoparticles; Cu nanoparticles
类别
资金
- CNR ICCOM
- Regione Puglia MIUR PON Ricerca e Competitivita [PONa3 00369]
Silicon nanowires (SiNWs) decorated by pulsed laser ablation with gold or copper nanoparticles (labeled as AuNPs@SiNWs and CuNPs@SiNWs) were investigated for their catalytic properties. Results demonstrated high catalytic performances in the C-aryl-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.
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