Rare earth nanorods

Details Rare earth nanorods Rare earth nanorods

2011-05-17

2011-05-17

Lorengo, Jerry (Department: 1731)

Chemistry of inorganic compounds

Rare earth compound

C423S021100

Reexamination Certificate

active

07943106

ABSTRACT:
A process for the production of nanorods containing a rare earth metal is disclosed. The process comprises the steps of: (a) increasing the pH of an aqueous solution of the formula MX3, where M is a trivalent rare earth metal cation and X is a monovalent anion so as to produce a reaction product containing X anions in solution and a precipitate in the form of trivalent rare earth hydroxide nanoparticles of the formula M(OH)3, the nanoparticles having a hexagonal crystal structure; and, (b) ageing the nanoparticles of step (a) in the presence of the reaction product containing X anions in solution so as to cause rod-like anisotropic growth of the nanoparticles and form rare earth hydroxide nanorods.

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