title: Sodium and Lithium Storage Properties of Spray-Dried Molybdenum Disulfide-Graphene Hierarchical Microspheres.
abstract: Developing nano/micro-structures which can effectively upgrade the intriguing properties of electrode materials for energy storage devices is always a key research topic. Ultrathin nanosheets were proved to be one of the potential nanostructures due to their high specific surface area, good active contact areas and porous channels. Herein, we report a unique hierarchical micro-spherical morphology of well-stacked and completely miscible molybdenum disulfide (MoS2) nanosheets and graphene sheets, were successfully synthesized via a simple and industrial scale spray-drying technique to take the advantages of both MoS2 and graphene in terms of their high practical capacity values and high electronic conductivity, respectively. Computational studies were performed to understand the interfacial behaviour of MoS2 and graphene, which proves high stability of the composite with high interfacial binding energy (-2.02 eV) among them. Further, the lithium and sodium storage properties have been tested and reveal excellent cyclic stability over 250 and 500 cycles, respectively, with the highest initial capacity values of 1300 mAh g(-1) and 640 mAh g(-1) at 0.1 A g(-1).
authors.affiliation: 1] Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2500, Australia [2] School of Mechanical, Materials and Mechatronics Engineering, University of Wollongong, NSW 2500, Australia [3].
authors.forename: Sujith
authors.initials: S
authors.lastname: Kalluri
authors.affiliation: 1] Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2500, Australia [2].
authors.forename: Kuok Hau
authors.initials: KH
authors.lastname: Seng
authors.affiliation: 1] Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2500, Australia [2] School of Mechanical, Materials and Mechatronics Engineering, University of Wollongong, NSW 2500, Australia.
authors.forename: Zaiping
authors.initials: Z
authors.lastname: Guo
authors.affiliation: School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland 4001, Australia.
authors.forename: Aijun
authors.initials: A
authors.lastname: Du
authors.affiliation: 1] Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2500, Australia [2] School of Mechanical, Materials and Mechatronics Engineering, University of Wollongong, NSW 2500, Australia.
authors.forename: Konstantin
authors.initials: K
authors.lastname: Konstantinov
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2500, Australia.
authors.forename: Hua Kun
authors.initials: HK
authors.lastname: Liu
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, NSW 2500, Australia.
authors.forename: Shi Xue
authors.initials: SX
authors.lastname: Dou