title: Controlled soft-template synthesis of ultrathin C@FeS nanosheets with high-Li-storage performance.
abstract: We report a facile approach to prepare carbon-coated troilite FeS (C@FeS) nanosheets via surfactant-assisted solution-based synthesis. 1-Dodecanethiol is used as both the sulfur source and the surfactant, which may form different-shaped micelles to direct the growth of nanostructures. Under appropriate growth conditions, the iron and sulfur atoms react to form thin layers of FeS while the hydrocarbon tails of 1-dodecanethiol separate the thin FeS layers, which turn to carbon after annealing in Ar. Such an approach can be extended to grow C@FeS nanospheres and nanoplates by modifying the synthesis parameters. The C@FeS nanosheets display excellent Li storage properties with high specific capacities and stable charge/discharge cyclability, especially at fast charge/discharge rates.
authors.affiliation: School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore.
authors.forename: Chen
authors.initials: C
authors.lastname: Xu
authors.forename: Yi
authors.initials: Y
authors.lastname: Zeng
authors.forename: Xianhong
authors.initials: X
authors.lastname: Rui
authors.forename: Ni
authors.initials: N
authors.lastname: Xiao
authors.forename: Jixin
authors.initials: J
authors.lastname: Zhu
authors.forename: Wenyu
authors.initials: W
authors.lastname: Zhang
authors.forename: Jing
authors.initials: J
authors.lastname: Chen
authors.forename: Weiling
authors.initials: W
authors.lastname: Liu
authors.forename: Huiteng
authors.initials: H
authors.lastname: Tan
authors.forename: Huey Hoon
authors.initials: HH
authors.lastname: Hng
authors.forename: Qingyu
authors.initials: Q
authors.lastname: Yan
mesh_terms: D011211:Electric Power Supplies; D004560:Electricity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005296:Ferrous Compounds / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D008422:Materials Testing; D008567:Membranes, Artificial; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry
chemical_list: D005296:Ferrous Compounds; D008567:Membranes, Artificial; D013501:Surface-Active Agents; D008094:Lithium; C022597:ferrous sulfide