Methods to form atomically thin carbon coatings on SnS and SnO2 nanostructures. Issue 66 (24th June 2016)

• Record Type: Journal Article
• Authors: Li, Shuankui; Zheng, Jiaxin; Zuo, Shiyong; Wu, Zhiguo; Yan, Pengxun; Rogach, Andrey L.; Pan, Feng
• Is Part Of: RSC advances. Volume 6:Issue 66(2016)
• Page Start: 61180
• Page End: 61184
• Publication Date: 2016-06-24
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra06166d
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : We report a citric acid-assisted solvothermal method to construct C@SnS@C sandwich nanosheets, which assemble into 3D porous microspheres. Abstract : We report a citric acid-assisted solvothermal method to construct C@SnS@C sandwich nanosheets, which assemble into 3D porous microspheres. Citric acid plays a key role in both controlling the growth of the thin (5 nm) SnS nanosheets by absorption on the (100) SnS surface, and in the formation of an amorphous atomically thin carbon (ATC) layer (0.8 nm) on the surface of SnS nanocrystals through carbonization. The C@SnS@C sandwich nanosheets are used as precursors to form porous microsphere SnO2 @ATC composites, with the SnO2 nanoparticles (10–20 nm) grown on the extended carbon framework. We demonstrate how the synergetic effect of the high theoretical lithium storage capacity of SnO2 and electrical conductivity of the atomically thin carbon framework renders this composite a promising anode material for lithium ion batteries with enhanced capacity and superior cycling performance.