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Sodium and lithium storage properties of spray-dried molybdenum disulfide-graphene hierarchical microspheres

Journal Article


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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).

Publication Date


  • 2015

Citation


  • Kalluri, S., Seng, K. Hau., Guo, Z., Du, A., Konstantinov, K., Liu, H. Kun. & Dou, S. Xue. (2015). Sodium and lithium storage properties of spray-dried molybdenum disulfide-graphene hierarchical microspheres. Scientific Reports, 5 11989-1-11989-8.

Scopus Eid


  • 2-s2.0-84954207709

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2539&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1537

Has Global Citation Frequency


Start Page


  • 11989-1

End Page


  • 11989-8

Volume


  • 5

Place Of Publication


  • United Kingdom

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).

Publication Date


  • 2015

Citation


  • Kalluri, S., Seng, K. Hau., Guo, Z., Du, A., Konstantinov, K., Liu, H. Kun. & Dou, S. Xue. (2015). Sodium and lithium storage properties of spray-dried molybdenum disulfide-graphene hierarchical microspheres. Scientific Reports, 5 11989-1-11989-8.

Scopus Eid


  • 2-s2.0-84954207709

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2539&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1537

Has Global Citation Frequency


Start Page


  • 11989-1

End Page


  • 11989-8

Volume


  • 5

Place Of Publication


  • United Kingdom