Jump to main content
Jump to site search


Polyoxometalates-coupled MXene Nanohybrid via Poly(ionic liquid) Linkers and Its Electrode for Enhanced Supercapacitive Performance

Abstract

MXene, a novel 2D transition metal carbide with metallic conductivity and hydrophilic surface, has highly active 2D surface and acts as a new type of promising electrode material. However, the low capacity and irreversible self-restacking limit their practicality and development. This paper presents a novel method to prepare a MXene-polyoxometalate (POM) nanohybrid using poly(ionic liquid) (PIL) as linkers for the first time. The electrostatic interactions, chemical structure, and morphology of this nanohybrid are systematically characterized, which have been manifested that the MXene-PIL-POM nanohybrid provides uniform distribution of POM nanoparticles on the MXene nanosheets and exhibits excellent electrochemical activity and stability due to the use of PIL as linkers and stabilizers. The prepared MXene-PIL-POM nanohybrid used as electrode displays a definite improvement on electrochemical performance with the specific capacitances of 384.6 F•g−1 at a current density of 1 A•g−1, which is about three-fold higher than that of MXene electrode. Besides, the MXene-PIL-POM electrode achieves a good rate performance (90.5 % retention at 10 A•g−1) and a long cycling life (91.7 % maintenance of specific capacitance at a constant current density of 4 A•g−1 after 2000 cycles). The proposed nanohybrid structure capitalizes on the enhancing in the redox reactions ability of POM through the PIL linkers to facilitate the charges transfer and provide efficient ion transfer channels in the nanohybrid.

Back to tab navigation

Supplementary files

Publication details

The article was received on 17 Jul 2018, accepted on 02 Oct 2018 and first published on 02 Oct 2018


Article type: Paper
DOI: 10.1039/C8NR05760E
Citation: Nanoscale, 2018, Accepted Manuscript
  •   Request permissions

    Polyoxometalates-coupled MXene Nanohybrid via Poly(ionic liquid) Linkers and Its Electrode for Enhanced Supercapacitive Performance

    S. Chen, Y. Xiang, M. K. Banks, C. Peng, W. Xu and R. Wu, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR05760E

Search articles by author

Spotlight

Advertisements