Porous Cobalt Metal-Organic Frameworks as Active Elements in Battery-Supercapacitor Hybrid Devices

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

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Author(s)

  • Kuaibing Wang
  • Rong Bi
  • Menglu Huang
  • Bo Lv
  • Huijian Wang
  • Chao Li
  • Hua Wu

Detail(s)

Original languageEnglish
Pages (from-to)6808-6814
Journal / PublicationInorganic Chemistry
Volume59
Issue number10
Online published24 Apr 2020
Publication statusPublished - 18 May 2020
Externally publishedYes

Abstract

With the trigonal linker 4,4′,4″-s-triazine-2,4,6-triyltribenzoic acid as a building block, porous cobalt metal-organic frameworks (named as PCN) have been successfully prepared and directly utilized as active materials in alkaline battery-type devices. For comparison, their carbon-supported hybrids (CNFs/PCN) have also been employed as battery-type electrodes. We found that the pristine PCN displayed a better performance than the CNFs/PCN composite electrode in electrochemical cells. To further investigate their electrochemical performances, alkaline battery-supercapacitor hybrid (BSH) devices with these materials as positive electrodes and activated carbon (AC) as the negative electrode were fabricated. The results indicate that the PCN//AC BSH devices delivered a maximum energy density of 16.0 Wh kg-1 at a power density of 749 W kg-1 within the voltage range of 0-1.5 V, which are much higher than those of CNFs/PCN//AC devices (12.4 Wh kg-1 at 753 W kg-1).

Citation Format(s)

Porous Cobalt Metal-Organic Frameworks as Active Elements in Battery-Supercapacitor Hybrid Devices. / Wang, Kuaibing; Bi, Rong; Huang, Menglu; Lv, Bo; Wang, Huijian; Li, Chao; Wu, Hua; Zhang, Qichun.

In: Inorganic Chemistry, Vol. 59, No. 10, 18.05.2020, p. 6808-6814.

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