| Autor: |
Vitale, Floriana, Vitaliano, Rosa, Battocchio, Chiara, Fratoddi, Ilaria, Giannini, Cinzia, Piscopiello, Emanuela, Guagliardi, Antonella, Cervellino, Antonio, Polzonetti, Giovanni, Russo, Maria, Tapfer, Leander |
| Zdroj: |
Nanoscale Research Letters; 20240101, Issue: Preprints p1-7, 7p |
| Abstrakt: |
Abstract: In this work the synthesis and characterization of gold nanoparticles functionalized by a novel thiol-organometallic complex containing Pd(II) centers is presented. Pd(II) thiol, trans, trans-[dithiolate-dibis(tributylphosphine)dipalladium(II)-4,4′-diethynylbiphenyl] was synthesized and linked to Au nanoparticles by the chemical reduction of a metal salt precursor. The new hybrid made of organometallic Pd(II) thiol-gold nanoparticles, shows through a single S bridge a direct link between Pd(II) and Au nanoparticles. The size-control of the Au nanoparticles (diameter range 2–10 nm) was achieved by choosing the suitable AuCl4−/thiol molar ratio. The size, strain, shape, and crystalline structure of these functionalized nanoparticles were determined by a full-pattern X-ray powder diffraction analysis, high-resolution TEM, and X-ray photoelectron spectroscopy. Photoluminescence spectroscopy measurements of the hybrid system show emission peaks at 418 and 440 nm. The hybrid was exposed to gaseous NO x with the aim to evaluate the suitability for applications in sensor devices; XPS measurements permitted to ascertain and investigate the hybrid –gas interaction. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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