Template‐assisted Morphological Evolution of Cu2S and Cu2MoS4from Octahedral Cu2O Crystals

Various morphologies of Cu2S and Cu2MoS4were synthesized from an octahedral Cu2O template in the presence of various concentrations of sodium molybdate and thioacetamide by carrying out solvothermal reactions in an ethylene glycol solvent. The morphology varied from hollow octahedral Cu2S structures, through small pieces of P‐Cu2MoS4, and finally to thin square‐like plates of I‐Cu2MoS4, depending on the concentrations of sodium molybdate and thioacetamide. The XRD data indicated that the Cu2MoS4structural phases changed from P4¯2mto I4¯2mthe concentrations of sodium molybdate and thioacetamide increased.