Beilstein J. Nanotechnol.2018,9, 1881–1894, doi:10.3762/bjnano.9.180
([BMIm][BF4]), 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIm][NTf2]) and in propylene carbonate (PC) yield oxide-free rare-earth metal nanoparticles (RE-NPs) in [BMIm][NTf2] and PC for RE = Pr, Gd and Er or rare-earthmetal-fluoridenanoparticles (REF3-NPs) in the fluoride-donating
diameters of (1.5 ± 0.5) to (5 ± 1) nm. The characterization was completed by energy-dispersive X-ray spectroscopy (EDX).
Keywords: ionic liquids; metal amidinates; rare-earthmetal-fluoridenanoparticles; rare-earth metal nanoparticles; soft wet-chemical synthesis; Introduction
Rare-earth (RE) elements
obtained rare-earth fluoride particles were not phase-pure [8].
An alternative method for synthesizing rare-earthmetal-fluoridenanoparticles is the use of rare-earth metal amidinates as precursors [9][10][11][12]. Metal amidinates are coordination compounds [13][14] and used, for example, as catalysts in
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Scheme 1:
Synthesis of REF3-NPs or RE-NPs from the rare-earth metal amidinates RE(amd)3 and Eu(dpm)3 by micro...