Polyol-Based Synthesis of Praseodymium Oxide Nanoparticles

Nanomaterials and Nanotechnology

Samuel Bernard¹  Caroline Quievryn¹  Philippe Miele¹ 

关键词: Polyol;    Praseodymium Nitrate;    Praseodymium Oxide;    Nanoparticles;    Calcination;   

DOI  :  10.5772/58458

来源: InTech

【 摘 要 】

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).

【 授权许可】

Unknown