Synergistic integration of molybdenum telluride grown on carbon nanofibers for high-performance flexible microsupercapacitors

Document Type

Article

Publication Title

Journal of Alloys and Compounds

Abstract

The growing demand for sustainable, flexible energy storage systems has intensified interest in microsupercapacitors (MSCs) due to their high-power density, long cycle life, and compatibility with wearable electronics. In this study, a high-performance, printable conductive ink was formulated using a MoTe2/carbon nanofiber (CNF) nanocomposite, combining the high conductivity and redox activity of MoTe2 with the structural integrity and electric double-layer capacitance of CNFs. The ink exhibited excellent rheological properties (viscosity ≈ 6646.4 mPa.s at 25°C) and stable dispersion, enabling uniform screen-printing on flexible polyethylene terephthalate (PET) substrates. The resulting MSCs delivered a high areal capacitance of 203.28 mFcm−2 at 5 mVs−1, with an energy density of 20.78 µWhcm−2 and a power density of 333.2 µWcm−2. The devices retained 90.9 % of their initial capacitance after 5000 charge-discharge cycles and maintained performance under repeated mechanical bending, confirming excellent flexibility and durability. This work demonstrates a scalable and eco-friendly route to fabricate flexible MSCs with enhanced electrochemical performance for next-generation portable electronics.

DOI

10.1016/j.jallcom.2025.183321

Publication Date

9-23-2025

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