Molten salt synthesis and characterization of large size β-Mn2V2O7 with single crystal character

The β-Mn2V2O7 crystals with strip-like shape were successfully synthesized by molten salt method in different molten salt. The samples were investigated by XRD, SEM, TEM, HRTEM and SAED. The results show molten salt species, molten salt content and heating temperature have great effect on the crystal structure and morphology. The products were found to have a monoclinic structure and possess a uniform strip-like shape with different grain size. The XRD patterns and the SAED patterns of single strip indicate that the β-Mn2V2O7 single strip have single crystalline character. HRTEM image further substantiate that the β-Mn2V2O7 strip have anisotropy growth and crystalline integrality.