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J Am Chem Soc. 2005 Apr 6;127(13):4588-9.

Laser-induced fragmentation of transition metal nanoparticles in ionic liquids.

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  • 1Laboratory of Molecular Catalysis, Institute of Chemistry and Institute of Physics UFRGS, Av. Bento Gonçalves, 9500 Porto Alegre, 91501-970 RS Brazil.


Stable Pd(0) and Rh(0) nanoparticles with small and narrow size distribution can be prepared from relative large and agglomerated transition-metal particles dispersed in 1-n-butyl-3methylimidazolium hexafluorophosphate ionic liquid by simple laser irradiation. The laser irradiation is a complementary method for the generation of stable metal colloids in ionic liquids and also for the regeneration of small-size nanoparticles that may result from their agglomeration after different applications.

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