Flexible freestanding MoS2 based paper-like material for energy conversion and storage

Submitting author affiliation:
University of Chemistry and Technology Prague, Prague 6, Czech Republic

Beilstein Arch. 2019, 201924. https://doi.org/10.3762/bxiv.2019.24.v1

Published 20 May 2019

cc-by Logo


Construction of flexible electrochemical devices for energy storage and generation is of utmost importance in the modern society. In this article, we report the synthesis of flexible MoS2 based composite paper by high-energy shear force milling and simple vacuum filtration. This composite material combines high flexibility, mechanical strength and good chemical stability. Chronopotentiometric charge-discharge measurements were used to determine the capacitance of our paper material. Highest capacitance of 33 mF cm-2 was achieved at current density of 1 mA cm-2 showing potential application in supercapacitors. We further used the material as a cathode for hydrogen evolution reaction (HER) with an onset potential of ca. -0.2 V vs RHE. The onset potential was even lower (ca. -0.1 V vs RHE) after treatment with n-butyllithium suggesting the introduction of new active sites. Finally, a potential use in Lithium ion batteries (LIB) was examined. Our material can be used directly without any binder, additive carbon or copper current collector and delivers specific capacity of 740 mA h g-1 at a current density of 0.1 A g-1. After 40 cycles at this current density the material still reached a capacity retention of 91%. Our findings show that this composite material could find application in electrochemical energy storage and generation devices where high flexibility and mechanical strength are desired.

Keywords: Flexible composites, batteries, supercapactors, hydrogen evolution, molybdenum disulfide

Supporting Information

Format: DOCX Size: 576.3 KB   Download

How to Cite

When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:

Zoller, F.; Luxa, J.; Bein, T.; Fattakhova-Rohlfing, D.; Bousa, D.; Sofer, Z. Beilstein Arch. 2019, 201924. doi:10.3762/bxiv.2019.24.v1

Download Citation

Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and Zotero.