Polyoxometalate-Incorporated Host-Guest Framework Derived Layered Double Hydroxide Composites for High-Performance Hybrid Supercapacitor

Yanan Zhang*, Junlei Chen, Fazal Razq, Chenyang Su, Xuehan Hou, Wenhuan Huang*, Huabin Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Metal organic frameworks have been employed as high-performance layered double hydroxide (LDH) composite supercapacitor electrode materials but have shown unsatisfactory redox ability and stability. Herein, a host-guest CuMo-based polyoxometalate-based metal organic framework (POMOF) with copious electrochemically active sites and strong electrochemical redox activities has been effectively coupled with POM-incorporated CoNi-LDH to develop a nanocomposite (NENU-5@CoNi-LDH) by a simple solvothermal method. The designed electrode shows a high specific capacity of 333.61 mAh·g–1 at 1 A·g–1. In addition, the novel hybrid symmetric supercapacitor NENU-5@CoNi-LDH/active carbon (AC) demonstrated a high energy density of 80.8 Wh·kg–1 at a power density of 750.7 W·kg–1. Interestingly, the nanocomposite of NENU-5@CoNi-LDH exhibits an outstanding capacitance retention of 79% after 5000 charge-discharge cycles at 10 A·g–1. This work provides a new strategy and will be the backbone for future energy storage research.

Original languageEnglish (US)
Pages (from-to)75-82
Number of pages8
JournalChinese Journal of Chemistry
Volume41
Issue number1
DOIs
StatePublished - Jan 1 2023

Bibliographical note

Funding Information:
This work was financially supported by the National Natural Science Foundation of China (22001156), the Youth Talent Fund of University Association for Science and Technology in Shaanxi, China (20210602), and the Science Foundation of Science and Technology Department of Shaanxi Province (2021JQ‐533).

Publisher Copyright:
© 2022 SIOC, CAS, Shanghai, & WILEY-VCH GmbH.

Keywords

  • High stability
  • Layered double hydroxide
  • Multi-electron redox
  • Polyoxometalate-based metal organic framework
  • Supercapacitor

ASJC Scopus subject areas

  • General Chemistry

Fingerprint

Dive into the research topics of 'Polyoxometalate-Incorporated Host-Guest Framework Derived Layered Double Hydroxide Composites for High-Performance Hybrid Supercapacitor'. Together they form a unique fingerprint.

Cite this