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C. Rill, G. Kickelbick:
"Preparation of Lanthanide Oxide Nanoparticles from Microemulsions and by Controlled Precipitation";
Talk: Junior Scientist Conference, Vienna University of Technology; 2006-04-16 - 2006-04-21; in: "Junior Scientist Conference 2006", (2006), ISBN: 3-902463-05-8; 163 - 164.

Nanoparticles based on the three selected lanthanides neodymium, ytterbium, and europium were prepared by a microemulsion approach and by controlled precipitation in the presence of coordinating ligands such as phosphonic acids and their derivatives. The effects of preparation parameters including the surfactant type, counter ion, pH, and temperature on the particle size were investigated by dynamic light scattering (DLS) and transmission electron microscopy (TEM). The microemulsions were found to lead to often uncontrollable particle agglomeration making this system difficult to optimize, especially at increased temperature. The use of phosphonates as growth-limiting ligands generally yields small and redispersible nanoparticles.

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC06587515

http://publik.tuwien.ac.at/files/pub-tch_6537.pdf