Mechanochemical Synthesis and Structure of New Phases in the Pb-V-O System
, E-ISSN: 1608-3172
Institute of Mechano- and Solid-State Chemistry, Siberian Division, Russian Academy of Sciences, ul. Kutateladze 18, Novosibirsk, 630128 Russia
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent’eva 5, Novosibirsk, 630090 Russia
Russian Foundation for Basic Research
The products of mechanochemical synthesis in the Pb–V–O system were characterized by x-ray diffraction and magnetic resonance spectroscopy techniques. The mechanical processing was found to yield only new crystalline compounds, Pb2.67V1.33O5.96and Pb3.5V4.5O14.75 . Structural analysis of these phases revealed a low atomic density, mixed-valent states of the constituent cations, the presence of three of four types of vanadium polyhedra, and splitting of crystallographic sites, in line with the views on the mechanisms of mechanochemical reactions developed in the model for the reaction zone.