Direct growth of MoS2 hierarchical nanoflowers on electrospun carbon nanofibers as an electrode material for high-performance supercapacitors

High intrinsic ionic conductivity and a theoretical capacity of MoS2 is well appreciated and gathered great attention for an electrode asset for energy storage applications. The MoS2 layers inter connected with one-dimensional carbon nanofibers (CNEs) are successfully prepared to give a conductive three-dimensional network for the robust charge transfer kinetics. The MoS2 nanosheets adhered together to form micro flowers accomplished by a simple hydrothermal process. Further, the nanosheets are allowed to grow over the electrospun CNEs directly. The structural, functional, and morphological characterizations unanimously revealed the nanocomposite formation. Also, the surface area has been determined by BET analysis and subjected to electrochemical studies as an electrode for supercapacitors. The nanocomposite deposited on the graphite sheet (1 x 1 cm(2)) displays the high capacitance counterparts of 903.9 Fe-1 achieved by a lower current density of 1 Ag-1 and maintained 94% efficiency even 5000 cycles after a charge-discharge process. This process was examined with the potential range of 0.8 V (-0.4 to +0.4 V) in 1 M KCl electrolyte. These results confirms the prepared nanocomposite can be used as a proficient electrode for the creation of high capacitance supercapacitors with good cyclability. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

The MoS2 nanocomposite, formed by connecting MoS2 layers with carbon nanofibers, shows high capacitance and good cycling performance, making it an effective electrode for supercapacitors. The structural, functional, and morphological characterizations confirm the formation of the nanocomposite, which maintains a high efficiency even after 5000 cycles.