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Decoration of Ultrathin MoS 2 Nanoflakes over MWCNTs: Enhanced Supercapacitive Performance through Electrode to Symmetric All‐Solid‐State Device
Author(s) -
Karade Swapnil S.,
Dubal Deepak P.,
Sankapal Babasaheb R.
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701788
Subject(s) - materials science , supercapacitor , raman spectroscopy , carbon nanotube , thin film , electrode , scanning electron microscope , transmission electron microscopy , electrochemistry , chemical engineering , substrate (aquarium) , nanotechnology , electrolyte , capacitance , chemical vapor deposition , composite material , optics , chemistry , engineering , physics , oceanography , geology
Ultrathin nanoflakes surface architecture of MoS 2 thin film has been successfully decorated by simple and inexpensive chemical bath deposition onto dip and dry coated multiwalled carbon nanotubes (MWCNTs) to compare electrochemical performance with respect to individual MWCNTs and MoS 2 thin films on flexible stainless steel (SS) substrates. Two dimensional thin films of MWCNTs, MoS 2 and MoS 2 /MWCNTs (MCT) have been characterized through X‐ray diffraction, X‐ray photospectroscopy, Raman spectroscopy and scanning/transmission electron microscopes. The unique nanostructured morphology of well anchored nanoflakes over MWCNTs enhances the value of specific capacitance and improves the cycle stability compare to bare MoS 2 . Strikingly, all‐solid‐state (ASS) symmetric SS/MCT//MCT/SS supercapacitor device has been constructed using flexible stainless steel substrate with the aid of PVA‐LiClO 4 gel electrolyte and results are discussed herein.