CoMoAl2O3

CoMoAl2O3 is a mixed oxide compound that nominally contains cobalt, molybdenum, aluminum, and oxygen in a 1:1:2:3 ratio. It is not a single widely standardized mineral, but rather a composition that can arise as a phase in multicomponent oxide systems, especially when cobalt molybdate interacts with alumina or related supports under high-temperature synthesis conditions.

The exact crystal structure of CoMoAl2O3 is not universal and can vary with preparation method and composition. Reported samples may exhibit spinel-like motifs with cation disorder or other oxide frameworks in which molybdenum is incorporated into the lattice. The presence of aluminum often influences the local coordination environment and can introduce oxygen vacancies or distortions, affecting stability and properties. Precise phase identification typically requires X-ray diffraction and spectroscopic analysis.

Synthesis routes for CoMoAl2O3 commonly involve solid-state calcination of oxide precursors, as well as solution-based methods such as sol-gel, co-precipitation, or hydrothermal approaches that facilitate controlled incorporation of molybdenum and aluminum into a cobalt-containing oxide matrix. Conditions such as temperature, atmosphere, and precursor ratios strongly affect phase formation and purity.

Properties and potential applications of CoMoAl2O3 depend on the resulting phase, but such mixed oxides are of interest for catalysis (for example, oxidation or hydrodesulfurization-related processes), magnetic behavior from cobalt centers, and energy-related applications. However, due to limited and variable data, concrete performance characteristics are highly synthesis- and phase-dependent, and continued research is needed to establish reliable structure–property relationships.