Issue 35, 2023

Exfoliated NbSe2 nanosheet@polypyrrole hybrid nanocomposites as a high performance anode of lithium-ion batteries

Abstract

Transition metal dichalcogenides (TMDCs), as next-generation two-dimensional materials, have gained considerable attention in energy storage applications through the incorporation of functional materials. In this work, we investigated NbSe2 TMDCs possessing metallic properties through the exfoliation of mono/few layered nanosheets and their subsequent incorporation with polypyrrole, a conducting polymer. The charge–charge interaction between the positively charged pyrrole and negatively charged NbSe2 nanosheets was facilitated through a chemical incorporation method, resulting in NbSe2@polypyrrole hybrid nanocomposites where the pyrrole molecules polymerized along the surface of NbSe2 nanosheets. The synergistic effect observed in NbSe2@polypyrrole hybrid nanocomposites demonstrated high capacity for lithium storage (955 mA h g−1) with excellent cycling stability (>100 cycles) and rate performance (4 A g−1), surpassing the performance of pristine NbSe2 or polypyrrole electrodes. In particular, the NbSe2@polypyrrole hybrid nanocomposite exhibited 361 mA h g−1 discharge capacity retention within a charge/discharge time of less than 6 minutes, which is comparable with the capacity of conventional graphite anodes. Our hybrid approach utilizing TMDCs and carbon structures could provide significant insight for the utilization of novel TMDC materials in energy storage applications.

Graphical abstract: Exfoliated NbSe2 nanosheet@polypyrrole hybrid nanocomposites as a high performance anode of lithium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
04 mar 2023
Accepted
15 avq 2023
First published
29 avq 2023

J. Mater. Chem. A, 2023,11, 19083-19090

Exfoliated NbSe2 nanosheet@polypyrrole hybrid nanocomposites as a high performance anode of lithium-ion batteries

B. Kang, S. Shin, K. Nam, J. Bae, J. Oh, S. Koo, H. Sohn, S. Park and W. H. Shin, J. Mater. Chem. A, 2023, 11, 19083 DOI: 10.1039/D3TA01335A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements