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One‐Pot Synthesis of Tunable Crystalline Ni3S4@Amorphous MoS2 Core/Shell Nanospheres for High‐Performance Supercapacitors

Journal Article


Abstract


  • Transition metal sulfides gain much attention as electrode materials for supercapacitors due to their rich redox chemistry and high electrical conductivity. Designing hierarchical nanostructures is an efficient approach to fully utilize merits of each component. In this work, amorphous MoS2 is firstly demonstrated to show specific capacitance 1.6 times as that of the crystalline counterpart. Then, crystalline core@amorphous shell (Ni3S4@MoS2) is prepared by a facile one‐pot process. The diameter of the core and the thickness of the shell can be independently tuned. Taking advantages of flexible protection of amorphous shell and high capacitance of the conductive core, Ni3S4@amorphous MoS2 nanospheres are tested as supercapacitor electrodes, which exhibit high specific capacitance of 1440.9 F g−1 at 2 A g−1 and a good capacitance retention of 90.7% after 3000 cycles at 10 A g−1. This design of crystalline core@amorphous shell architecture may open up new strategies for synthesizing promising electrode materials for supercapacitors.

UOW Authors


  •   Zhang, Yu (external author)
  •   Sun, Wenping
  •   Rui, Xianhong (external author)
  •   Li, Bing (external author)
  •   Tan, Hui Teng. (external author)
  •   Guo, Guilue (external author)
  •   Madhavi, Srinivasan (external author)
  •   Zong, Yun (external author)
  •   Yan, QingYu (external author)

Publication Date


  • 2015

Published In


Citation


  • Zhang, Y., Sun, W., Rui, X., Li, B., Tan, H. Teng., Guo, G., Madhavi, S., Zong, Y. & Yan, Q. (2015). One‐Pot Synthesis of Tunable Crystalline Ni3S4@Amorphous MoS2 Core/Shell Nanospheres for High‐Performance Supercapacitors. Small, 11 (30), 3694-3702.

Scopus Eid


  • 2-s2.0-84938741811

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 3694

End Page


  • 3702

Volume


  • 11

Issue


  • 30

Place Of Publication


  • Germany

Abstract


  • Transition metal sulfides gain much attention as electrode materials for supercapacitors due to their rich redox chemistry and high electrical conductivity. Designing hierarchical nanostructures is an efficient approach to fully utilize merits of each component. In this work, amorphous MoS2 is firstly demonstrated to show specific capacitance 1.6 times as that of the crystalline counterpart. Then, crystalline core@amorphous shell (Ni3S4@MoS2) is prepared by a facile one‐pot process. The diameter of the core and the thickness of the shell can be independently tuned. Taking advantages of flexible protection of amorphous shell and high capacitance of the conductive core, Ni3S4@amorphous MoS2 nanospheres are tested as supercapacitor electrodes, which exhibit high specific capacitance of 1440.9 F g−1 at 2 A g−1 and a good capacitance retention of 90.7% after 3000 cycles at 10 A g−1. This design of crystalline core@amorphous shell architecture may open up new strategies for synthesizing promising electrode materials for supercapacitors.

UOW Authors


  •   Zhang, Yu (external author)
  •   Sun, Wenping
  •   Rui, Xianhong (external author)
  •   Li, Bing (external author)
  •   Tan, Hui Teng. (external author)
  •   Guo, Guilue (external author)
  •   Madhavi, Srinivasan (external author)
  •   Zong, Yun (external author)
  •   Yan, QingYu (external author)

Publication Date


  • 2015

Published In


Citation


  • Zhang, Y., Sun, W., Rui, X., Li, B., Tan, H. Teng., Guo, G., Madhavi, S., Zong, Y. & Yan, Q. (2015). One‐Pot Synthesis of Tunable Crystalline Ni3S4@Amorphous MoS2 Core/Shell Nanospheres for High‐Performance Supercapacitors. Small, 11 (30), 3694-3702.

Scopus Eid


  • 2-s2.0-84938741811

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 3694

End Page


  • 3702

Volume


  • 11

Issue


  • 30

Place Of Publication


  • Germany