Stable palladium oxide nanoparticles were prepared in aqueous suspension with a very simple procedure, by dissolving palladium nitrate in water at a concentration around 10-4 M. UV-visible absorption spectroscopy was adopted to follow the formation of these nanoparticles, which were characterized by TEM microscopy, along with XRD, XPS and Raman measurements. DFT calculations allowed to interpret the Raman data and to clarify the species present at the surface of the nanoparticles. The catalytic activity of the latter was evaluated by monitoring the reduction of p-nitrophenol to p-aminophenol. This investigation paves the way to the use of these colloidal nanoparticles in processes of heterogeneous catalysis, in particular those concerning the catalytic degradation of aromatic derivatives that represent a serious danger for the environment as pollutants, as in the case of p-nitrophenol.

Palladium oxide nanoparticles: Preparation, characterization and catalytic activity evaluation / Muniz Miranda, M.; Zoppi, A.; Muniz Miranda, F.; Calisi, N.. - In: COATINGS. - ISSN 2079-6412. - 10:3(2020), pp. 207-217. [10.3390/coatings10030207]

Palladium oxide nanoparticles: Preparation, characterization and catalytic activity evaluation

Muniz Miranda F.;
2020

Abstract

Stable palladium oxide nanoparticles were prepared in aqueous suspension with a very simple procedure, by dissolving palladium nitrate in water at a concentration around 10-4 M. UV-visible absorption spectroscopy was adopted to follow the formation of these nanoparticles, which were characterized by TEM microscopy, along with XRD, XPS and Raman measurements. DFT calculations allowed to interpret the Raman data and to clarify the species present at the surface of the nanoparticles. The catalytic activity of the latter was evaluated by monitoring the reduction of p-nitrophenol to p-aminophenol. This investigation paves the way to the use of these colloidal nanoparticles in processes of heterogeneous catalysis, in particular those concerning the catalytic degradation of aromatic derivatives that represent a serious danger for the environment as pollutants, as in the case of p-nitrophenol.
2020
10
3
207
217
Palladium oxide nanoparticles: Preparation, characterization and catalytic activity evaluation / Muniz Miranda, M.; Zoppi, A.; Muniz Miranda, F.; Calisi, N.. - In: COATINGS. - ISSN 2079-6412. - 10:3(2020), pp. 207-217. [10.3390/coatings10030207]
Muniz Miranda, M.; Zoppi, A.; Muniz Miranda, F.; Calisi, N.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1258618
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