title: Green and economical synthesis of carbon-coated MoO2 nanocrystallines with highly reversible lithium storage capacity.
abstract: Carbon-coated MoO2 nanocrystallines with uniform particle size and carbon-coating morphology have been fabricated by a green and economical hydrothermal route and carbonization process. Glucose here acts as a multifunctional agent, not only as the reducing species to prepare MoO2, but also as the carbonaceous precursor and coating agent to form the carbon-coated and nanoscale MoO2 crystallines. The electrochemical tests demonstrate that the as-synthesized carbon-coated MoO2 nanocrystallines exhibit high capacity and excellent capacity retention as an anode material for lithium-ion batteries. The specific discharge capacity is as high as 790 mA h g(-1) in the first cycle and 730 mA h g(-1) over 50 cycles. The significant enhancement in the electrochemical Li storage performance is attributed to the synergistic effect of the nanocrystallines structure with small particle size and uniform carbon-coating shell, which reduces the diffusion distance for Li-ion and electron, provides high electric conductivity and relieves the volume effect during the cycling.
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Sun
authors.forename: Yifeng
authors.initials: Y
authors.lastname: Shi
authors.forename: Xiangpeng
authors.initials: X
authors.lastname: Fang
authors.forename: Huiming
authors.initials: H
authors.lastname: Ji
authors.forename: Xiaolei
authors.initials: X
authors.lastname: Li
authors.forename: Shu
authors.initials: S
authors.lastname: Cai
authors.forename: Chunming
authors.initials: C
authors.lastname: Zheng
authors.forename: Yongsheng
authors.initials: Y
authors.lastname: Hu
mesh_terms: D000327:Adsorption; D002244:Carbon / Q000737:chemistry*; D003460:Crystallization / Q000379:methods; D011211:Electric Power Supplies; D004867:Equipment Design; D019544:Equipment Failure Analysis; D055772:Green Chemistry Technology / Q000379:methods*; D008094:Lithium / Q000737:chemistry* / Q000302:isolation & purification*; D008422:Materials Testing; D008982:Molybdenum / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size
chemical_list: D010087:Oxides; C539565:molybdenum dioxide; D002244:Carbon; D008982:Molybdenum; D008094:Lithium