Shape‐Controlled Synthesis and Self‐Assembly of Hexagonal Covellite (CuS) Nanoplatelets

Weimin Du(Shanghai Jiao Tong University), Xuefeng Qian(Shanghai Jiao Tong University), Xiaodong Ma(Shanghai Jiao Tong University), Qiang Gong(Shanghai Jiao Tong University), Hongliang Cao(Shanghai Jiao Tong University), Jie Yin(Shanghai Jiao Tong University)
Chemistry - A European Journal
January 2, 2007
10.1002/chem.200601368
Cited by 160

Abstract

Single-crystalline, hexagonal covellite (CuS) nanoplatelets were successfully synthesized through a facile, inexpensive, reproducible, and improved solvothermal process in toluene at 120 degrees C for 24 h with hexadecylamine as a capping agent and copper acetate and carbon disulfide as precursors. These nanoplatelets are about 26+/-1.5 nm in diameter and 8+/-1.2 nm thick, and have a tendency to self-assemble into pillarlike nanostructures with face-to-face stacks, raftlike nanostructures with side-by-side arrays, and stratiform nanostructures with layer-by-layer self-assembly. The crystal shape, morphology, and crystallographic orientation of the covellite obtained were investigated by means of XRD, TEM, and high-resolution TEM, and a potential self-assembly mechanism was proposed.

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