Izvorni znanstveni članak

https://doi.org/10.5772/58458

Polyol-based Synthesis of Praseodymium Oxide Nanoparticles

Caroline Quievryn ; Institut Europeen des Membranes (IEM), UMR5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Montpellier, France
Samuel Bernard ; Institut Europeen des Membranes (IEM), UMR5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Montpellier, France
Philippe Miele ; Institut Europeen des Membranes (IEM), UMR5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Montpellier, France

Sažetak

A series of well-crystallized praseodymium oxide (Pr6O11) nanoparticles are synthesized via a highly scalable process from praseodymium nitrate. Praseodymium hydroxide is synthesized through a modified polyol process and subsequent calcination in air at 600°C for 2 h to transform the precursor material into Pr6O11 nanoparticles. A complete characterization of a specific sample by SEM, HRTEM, and X-ray diffraction (XRD) demonstrates that Pr6O11 nanoparticles form elementary blocks with a calculated size of 118 nm, containing slightly agglomerated nanocrystalline particles with a polycrystalline face-centred cubic phase and an individual size of around 10 nm. Particles can be easily dispersed in water through ultrasonification. Particles display a BET Specific Surface Area (SSA; 8.75 m² g-1) with a nitrogen adsorption-desorption isotherm of type II and a helium density of powders (d = 5.66 g cm-3).

Ključne riječi

polyol; praseodymium nitrate; praseodymium oxide; nanoparticles; calcination

Hrčak ID:

142598

URI

https://hrcak.srce.hr/142598

Datum izdavanja:

1.1.2014.

Posjeta: 1.556 *