Silver molybdate (Ag2MoO4) presents two types of electronic structure, depending on the pressure conditions to which the crystal is subjected. At room temperature, Ag2MoO4 exhibits a spinel-type cubic structure related to beta (β-Ag2MoO4) phase, which is more stable in nature. However, when exposed to high hydrostatic pressure, these crystals have a tetragonal structure associated to alpha (α-Ag2MoO4) metastable phase. Recently, the literature has reported the formation of α-Ag2MoO4 metastable phase by the solution-phase precipitation method under environment condition, and using 3-bis(2-pyridyl)pyrazine (dpp) as doping. The influence of pH at starting solution on the growth and formation processes of distinct heterostructures (brooms, flowers and rods) was investigated by Singh et al. an