Facile Fabrication of MCo2S4(M = Mn, Ni) Nanotube Arrays for High-Performance Supercapacitors
Facile Fabrication of MCo2S4(M = Mn, Ni) Nanotube Arrays for High-Performance Supercapacitors
Peng Li(Taiyuan Institute of Technology); Xiaoxiao Ma(Taiyuan Institute of Technology); Fei Liu(Taiyuan Institute of Technology); Junhua Tan(Taiyuan Institute of Technology); Yanliang Zhao(Taiyuan Institute of Technology); Liyong Wang(Hebei Normal University for Nationalities); Kaijin Zhu(Taiyuan Institute of Technology)
15권 4호, 462~470쪽
초록
MCo2S4(M = Mn, Ni) nanomaterials are attracting considerable attention because of their unique nanostructure, good redoxproperties, excellent theoretical capacitance, low cost and easy preparation. Herein, MCo2S4(M = Mn, Ni) nanotube arrayshave been fabricated by a one-pot hydrothermal method and could be used as conductive additive and binder-free electrodesfor supercapacitors. The results show that the specific capacitance of MCo2S4(M = Mn or Ni) nanotube arrays could reachas high as 2667 and 1623 F/g at the current density of 10 A/g, respectively, indicating high rate performance. Furthermore,the MnCo2S4nanotube arrays exhibited excellent cycling stability (68% of initial specific capacitance after 1800 cycles). These excellent electrochemical properties benefit from the synergistic effects of unique tubular microstructure and highconductivity of the samples.
Abstract
MCo2S4(M = Mn, Ni) nanomaterials are attracting considerable attention because of their unique nanostructure, good redoxproperties, excellent theoretical capacitance, low cost and easy preparation. Herein, MCo2S4(M = Mn, Ni) nanotube arrayshave been fabricated by a one-pot hydrothermal method and could be used as conductive additive and binder-free electrodesfor supercapacitors. The results show that the specific capacitance of MCo2S4(M = Mn or Ni) nanotube arrays could reachas high as 2667 and 1623 F/g at the current density of 10 A/g, respectively, indicating high rate performance. Furthermore,the MnCo2S4nanotube arrays exhibited excellent cycling stability (68% of initial specific capacitance after 1800 cycles). These excellent electrochemical properties benefit from the synergistic effects of unique tubular microstructure and highconductivity of the samples.
- 발행기관:
- 대한금속·재료학회
- 분류:
- 전자/정보통신공학