Boosting supercapacitor performance via flower-like Cu₂XSnS₄ (X = Mn, Co, Ni, Ba, Zn) chalcogenides: Solvothermal synthesis and charge storage behavior.

In the present work, a series of Cu₂XSnS₄ (X = Mn, Co, Ni, Zn, Ba) quaternary chalcogenide phases were synthesized by a simple solvothermal method and evaluated as electrode materials in symmetric two-electrode supercapacitor cells. Structural and morphological analyses demonstrated the formation of flower-like crystalline structures, with significant variations in texture and surface area depending on the substituted metal. Among the synthesized samples, the Mn-substituted CMnTS electrode exhibited the highest specific capacitance of 386.