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NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2016, 7 (3), P. 451–458

Synthesis and study of anhydrous lanthanide orthophosphate (Ln = La, Pr, Nd, Sm) nanowhiskers

K. I. Bryukhanova – Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninsky prospect 31, Moscow, 119991, Russia; bryuhanova@igic.ras.ru
G. E. Nikiforova – Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninsky prospect 31, Moscow, 119991, Russia
K. S. Gavrichev – Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninsky prospect 31, Moscow, 119991, Russia

The effect of hydrothermal synthetic conditions on the obtaining of lanthanide orthophosphates LnPO₄ (Ln = La, Pr, Nd, Sm) with different structure, size and shape of particles was revealed. The optimum conditions for preparation of anhydrous nanoscale lanthanide orthophosphates with monoclinic structure were determined. The prepared nanowhiskers had lengths ranging from 0.4 m (for LaPO₄) to 5 m (for SmPO₄), and the diameter – from 30 nm (for LaPO₄) to 200 nm (for SmPO₄). The size of particles synthesized under similar conditions increased with decreased of lanthanide ion radius.

Keywords: nanowhisker, lanthanides, orthophosphates, hydrothermal synthesis, size factor.

PACS 61.46.-w, 81.20.-n

DOI 10.17586/2220-8054-2016-7-3-451-458

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