Efficient energy storage capabilities promoted by hierarchical MnCo 2O4 nanowire-based architectures

Saad Gomaa Mohamed, Tai Feng Hung, Chih Jung Chen, Chih Kai Chen, Shu Fen Hu*, Ru Shi Liu

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

44 引文 斯高帕斯(Scopus)

摘要

A facile, two-step hydrothermal/calcination approach to grow uniform MnCo2O4 nanowires (NWs) on a binder- and conductive-agent-free nickel foam substrate has been demonstrated. The hierarchical MnCo2O4 NW-based architectures on a conductive substrate allow for enhanced electrolyte transport and charge transfer towards/from the MnCo2O4 NWs' surfaces with large numbers of electroactive sites. In addition, the direct growth and attachment of the MnCo2O4 NWs on the supporting conductive substrates provide much reduced contact resistances and efficient charge transfer. These excellent features allow the use of MnCo2O4 NWs as a lithium-ion battery electrode, with high capacity at a current density of 200 mA h g-1, as well as a very good cycling stability. Moreover, these MnCo2O4 NWs have also demonstrated a high capacitive behavior for symmetric supercapacitor application, indicating the potential application of MnCo2O4 NW high-performance energy-storage devices.

原文英語
頁(從 - 到)17230-17235
頁數6
期刊RSC Advances
4
發行號33
DOIs
出版狀態已發佈 - 2014

ASJC Scopus subject areas

  • 化學 (全部)
  • 化學工程 (全部)

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