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Sb2O3/MXene(Ti3C2Tx) hybrid anode materials with enhanced performance for sodium-ion batteries

Journal Article


Abstract


  • MXenes, a novel family of two dimensional (2D) materials with excellent electronic conductivity and hydrophilicity, have emerged as a promising material for energy storage. Based on the intercalation mechanism, MXenes have demonstrated an excellent performance for supercapacitors but low capacities for sodium-ion batteries. Herein, we developed a facile solution-phase method to fabricate the Sb2O3/MXene(Ti3C2Tx) hybrid materials for sodium storage with enhanced electrochemical performances. The as-prepared Sb2O3/Ti3C2Tx composite has a hierarchical structure with Sb2O3 nanoparticles (sub-50 nm) uniformly incorporated in the MXene Ti3C2Tx 3D networks. The Sb2O3 nanoparticles serve as a sufficient sodium ion reservoir; meanwhile, the MXene Ti3C2Tx network provides highly efficient pathways for transport of electrons and Na-ions. The volume expansion of Sb2O3 during sodiation/desodiation can be buffered and confined between the 2D Ti3C2Tx sheets. As a result, the Sb2O3/Ti3C2Tx hybrid anodes present good structural stability and superior electrochemical performance in Na-ion batteries, including an excellent rate performance with a capacity of 295 mA h g-1 at 2 A g-1, and an enhanced cycling performance with a capacity of 472 mA h g-1 after 100 cycles at 100 mA g-1. This work is expected to inspire the development of MXene materials for high performance batteries.

UOW Authors


  •   Wang, Guoxiu (external author)

Publication Date


  • 2017

Citation


  • Guo, X., Xie, X., Choi, S., Zhao, Y., Liu, H., Wang, C., . . . Wang, G. (2017). Sb2O3/MXene(Ti3C2Tx) hybrid anode materials with enhanced performance for sodium-ion batteries. Journal of Materials Chemistry A, 5(24), 12445-12452. doi:10.1039/c7ta02689g

Scopus Eid


  • 2-s2.0-85021649872

Start Page


  • 12445

End Page


  • 12452

Volume


  • 5

Issue


  • 24

Abstract


  • MXenes, a novel family of two dimensional (2D) materials with excellent electronic conductivity and hydrophilicity, have emerged as a promising material for energy storage. Based on the intercalation mechanism, MXenes have demonstrated an excellent performance for supercapacitors but low capacities for sodium-ion batteries. Herein, we developed a facile solution-phase method to fabricate the Sb2O3/MXene(Ti3C2Tx) hybrid materials for sodium storage with enhanced electrochemical performances. The as-prepared Sb2O3/Ti3C2Tx composite has a hierarchical structure with Sb2O3 nanoparticles (sub-50 nm) uniformly incorporated in the MXene Ti3C2Tx 3D networks. The Sb2O3 nanoparticles serve as a sufficient sodium ion reservoir; meanwhile, the MXene Ti3C2Tx network provides highly efficient pathways for transport of electrons and Na-ions. The volume expansion of Sb2O3 during sodiation/desodiation can be buffered and confined between the 2D Ti3C2Tx sheets. As a result, the Sb2O3/Ti3C2Tx hybrid anodes present good structural stability and superior electrochemical performance in Na-ion batteries, including an excellent rate performance with a capacity of 295 mA h g-1 at 2 A g-1, and an enhanced cycling performance with a capacity of 472 mA h g-1 after 100 cycles at 100 mA g-1. This work is expected to inspire the development of MXene materials for high performance batteries.

UOW Authors


  •   Wang, Guoxiu (external author)

Publication Date


  • 2017

Citation


  • Guo, X., Xie, X., Choi, S., Zhao, Y., Liu, H., Wang, C., . . . Wang, G. (2017). Sb2O3/MXene(Ti3C2Tx) hybrid anode materials with enhanced performance for sodium-ion batteries. Journal of Materials Chemistry A, 5(24), 12445-12452. doi:10.1039/c7ta02689g

Scopus Eid


  • 2-s2.0-85021649872

Start Page


  • 12445

End Page


  • 12452

Volume


  • 5

Issue


  • 24