Synthesis and characterization of a new trimetallic compound (NH_4) Ni_(2.4)Co_(0.6)0(OH)(MoO_4)_2•1.5H_2O

摘要

A new trimetallic compound with formula (NH_4)Ni_(2.4)Co_(0.6)O(OH)(MoO_4)_2•1.5H_2O was obtained by hydrothermal synthesis. The solid was characterized by X-ray diffraction, thermal analysis (thermo-gravimetric analysis and differential thermal analysis), Fourier-transformed infrared spectroscopy, Laser Raman spectroscopy, and chemical analysis by atomic absorption, confirming the formation of the layered phase ø_y. Crystallographic studies showed that the compound obtained is trigonal with hexagonal unit-cell parameters, a = 6.0468 ± 0.0016 A and c = 21.8433 ± 0.0001 A, and space group R-3m.