Amine-free preparation of SnSe nanosheets with high crystallinity and their lithium storage properties

• Published in: Colloids and surfaces. A, Physicochemical and engineering aspects Vol. 406; pp. 1 - 5
• Main Authors: Kang, Shi-Zhao, Jia, Ladi, Li, Xiangqing, Yin, Yaxia, Li, Liang, Guo, Yu-Guo, Mu, Jin
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 20.07.2012
• Subjects: absorption; adsorption; amines; Anode material; colloids; crystal structure; Crystallinity; Diffraction; Discharge; electrochemistry; electrodes; energy; lithium; Lithium-ion battery; Nanocomposites; Nanomaterials; Nanosheet; Nanostructure; nitrogen; oil-water interface; Potential energy; SnSe; Solvothermal process; Surface chemistry; temperature; transmission electron microscopes; X-ray diffraction; Anode material; Lithium-ion battery; SnSe; Nanosheet; Solvothermal process
• ISSN: 0927-7757; 1873-4359
• DOI: 10.1016/j.colsurfa.2012.04.025

[Display omitted] ► SnSe nanosheets were prepared at oil–water interface in a solvothermal process. ► The process does not involve any templates and amines. ► The SnSe nanosheets exhibit a high initial discharge capacity of 1009mAhg−1. In the present work, SnSe nanosheets were prepared via a reaction at the oil–water interface in the solvothermal process at low temperature (130°C), which did not involve any templates and amines such as oleylamine. X-ray diffraction, transmission electron microscope, absorption spectrum and nitrogen adsorption were used to characterize the products. The results indicated that the SnSe nanosheets obtained adopted a square-like morphology with lateral dimensions of approximately 120nm×120nm and possessed high crystallinity. Moreover, their electrochemical performance, as an anode material, was evaluated by galvanostatic discharge–charge tests, showing that the as-prepared SnSe nanosheets exhibited a high initial discharge capacity of 1009mAhg−1 as a potential energy storage material.