For industrial-scale electrochemical applications of renewable energy routes such as electrochemical water splitting or supercapacitors, there is a huge need for flexible, durable, and large-area electrodes. In this study, flexible and conductive poly(lactic acid)/graphite composite films, with a high mass percentage (∼64%) of conductive graphitic material, are prepared without specialized equipment and can be used as stable electrodes in aqueous solutions. These films can be used as a substrate for the hydrogen evolution reaction, which is demonstrated in this study by spray coating with molybdenum(IV) sulfide. Finally, the films are manipulated to construct a flexible solid-state supercapacitor device that can withstand a bending angle of 120° without any change in performance. The geometric characteristics of the electrodes can be manipulated to any shape and size, and as such, they are scalable to large areas.
|Number of pages||7|
|Journal||ACS Applied Energy Materials|
|Publication status||Published - 2021 Jul 26|
Bibliographical noteFunding Information:
M.P. acknowledges the financial support by the Grant Agency of the Czech Republic (GACR EXPRO: 19-26896X), and C.J. acknowledges the research facility provided by the University of Chemistry and Technology, Prague (reg. no. CZ.02.1.01/0.0/0.0/15_003/0000444 financed by the EFRR). K.G. acknowledges Marie Skłodowska-Curie Actions Individual Fellowship (H2020-MSCA-IF EU project 894457–MotionESt) for funding and CEITEC Nano Research Infrastructure supported by MEYS CR (LM2018110) for providing spectroscopy and microscopy characterization facilities.
© 2021 American Chemical Society
All Science Journal Classification (ASJC) codes
- Chemical Engineering (miscellaneous)
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
- Materials Chemistry