Mesoporous aluminium manganese cobalt oxide with pentahedron structures for energy storage devices

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

25 Scopus Citations
View graph of relations

Author(s)

  • Chun Wu
  • Cao Guan
  • Chuankun Jia
  • Wei Qin
  • Xianyou Wang

Detail(s)

Original languageEnglish
Pages (from-to)18417-18427
Journal / PublicationJournal of Materials Chemistry A
Volume7
Issue number31
Online published10 Jul 2019
Publication statusPublished - 21 Aug 2019

Abstract

Ternary metal oxides with unique mesoporous structures grown on nickel foam are considered as attractive candidates for high-performance supercapacitors because of their fast electron-transport access, rich accessibility of electroactive sites to the electrolyte, shortened ion diffusion path and wonderful synergetic effects of different metallic elements. Herein, a novel three-dimensional porous pentahedron structured aluminium manganese cobalt oxide (AMCO) synthesized via a facile and cost-effective hydrothermal method followed by a short post-annealing process has been reported. A high specific capacity of 923.1 C g-1 at 1 A g-1 as well as good cycling stability and 100% coulombic efficiency after 8000 cycles can be achieved when used as a supercapacitor electrode. In addition, the as-fabricated asymmetric supercapacitor based on the as-prepared AMCO positive electrode and an activated carbon negative electrode exhibits a high energy density of 88.2 W h kg-1 at a power density of 799 W kg-1, indicating its great promise for constructing high-performance energy storage devices.

Citation Format(s)

Mesoporous aluminium manganese cobalt oxide with pentahedron structures for energy storage devices. / Wu, Chun; Zhu, Ying; Guan, Cao; Jia, Chuankun; Qin, Wei; Wang, Xianyou; Zhang, Kaili.

In: Journal of Materials Chemistry A, Vol. 7, No. 31, 21.08.2019, p. 18417-18427.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review