title: Polystyrene-Templated Aerosol Synthesis of MoS2 -Amorphous Carbon Composite with Open Macropores as Battery Electrode.
abstract: MoS2 -amorphous carbon (MoS2 -AC) composite microspheres with macroporous structure were fabricated by one-pot spray pyrolysis. Single- or few-layered MoS2 were uniformly dispersed and oriented in random directions in the amorphous carbon microsphere with macropores sizes between 50 and 90 nm. The macroporous microspheres having a high contact area with liquid electrolyte exhibited overall superior Li- and Na-ion storage properties compared with those of the dense microspheres. After 250 charge/discharge cycles at a current density of 1.5 A g(-1) , the discharge capacities of the MoS2 -AC microspheres with dense and macroporous structures for Li-ion storage were 694 and 896 mAh g(-1) , respectively. In the case of Na-ion storage, discharge capacities of 336 and 425 mAh g(-1) were achieved for the dense and macroporous microspheres, respectively, after 100 cycles at 0.3 A g(-1) .
authors.affiliation: Department of Materials Science and Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul 136-713 (Republic of Korea).
authors.forename: Seung Ho
authors.initials: SH
authors.lastname: Choi
authors.affiliation: Department of Materials Science and Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul 136-713 (Republic of Korea). yckang@korea.ac.kr.
authors.forename: Yun Chan
authors.initials: YC
authors.lastname: Kang
mesh_terms: D000336:Aerosols; D002244:Carbon / Q000737:chemistry*; D004220:Disulfides / Q000737:chemistry*; D011211:Electric Power Supplies; D004566:Electrodes; D008094:Lithium / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D008863:Microspheres; D008982:Molybdenum / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D011137:Polystyrenes / Q000737:chemistry*; D012964:Sodium / Q000737:chemistry
chemical_list: D000336:Aerosols; D004220:Disulfides; D011137:Polystyrenes; D002244:Carbon; D008982:Molybdenum; D008094:Lithium; D012964:Sodium; C082964:molybdenum disulfide
keywords: anodes; batteries; carbon; composites; metal sulfide