In:
Journal of Materials Chemistry A, Royal Society of Chemistry (RSC), Vol. 10, No. 13 ( 2022), p. 7373-7381
Abstract:
Two-dimensional (2D) 1T-MoS 2 with high conductivity and large layer spacing is considered as a superior electrode material for supercapacitors. However, the easy agglomeration and thermodynamical metastability characteristics of 1T-MoS 2 nanosheets restrict its electrochemical performance and wide application. It is a challenge to obtain highly stable and uniformly dispersed 1T-MoS 2 nanosheets by a simple method. Herein, a high-stability 1T-MoS 2 induced by W doping is obtained, which uniformly grows in situ on the surface of a 2D Ti 3 C 2 T x MXene template, by a one-pot hydrothermal synthesis. The microstrain introduced by accurately controlling W doping (29 at%) induces the phase transformation of 1T-MoS 2 , and the appropriate amount of Ti 3 C 2 T x MXene provides an exact space for the uniform growth of 1T-MoS 2 , resulting in a well-matched 1T-Mo 0.71 W 0.29 S 2 /Ti 3 C 2 T x MXene heterostructure. The components of the above heterostructure take full advantage to their properties and help each other to achieve high structural stability and outstanding electrochemical performance as electrodes in a neutral electrolyte Na 2 SO 4 . Furthermore, the symmetrical devices fabricated with the well-matched 1T-Mo 0.71 W 0.29 S 2 /Ti 3 C 2 T x heterostructure not only show high power and energy density but also outstanding flexibility and cycle stability. This study provides a simple method to achieve anti-aggregation and high-stability 1T-MoS 2 , and moreover, a new idea of using multiple methods at once for constructing high-performance 1T-MoS 2 -based electrode materials.
Type of Medium:
Online Resource
ISSN:
2050-7488
,
2050-7496
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
2702232-8
