%0 Journal Article
%T Ethylenediamine-Assisted High Yield Exfoliation of MoS2 for Flexible Solid-State Supercapacitor Application
%J -
%D 2019
%R https://doi.org/10.1021/acsanm.8b02002
%X A high yield synthesis technique of few-layer MoS2 by ethylenediamine (EDA)-assisted liquid phase exfoliation is reported. In the cyclic two-step process, EDA is adsorbed initially followed by sonication with propylene carbonate. The combination of organic solvents results in the exfoliation of micrometer sized few-layer two-dimensional (2D) MoS2 nanosheets within a short duration. Controlled gradual centrifugations separate 2D MoS2 of different sizes ranging from nanocrystals to micrometer sized flakes. The method differs from other sonication-induced fragmentation processes and results in larger sized nanosheets up to ¡«2.0 ¦Ìm of lateral dimension having a thickness of ¡«2¨C3 nm with high yield. Optical properties of the 2D nanosheets are studied by UV¨Cvis absorption and Raman spectroscopy. Finally, the exfoliated MoS2 is employed to fabricate flexible solid-state supercapacitors, which shows superior performance compared to bulk MoS2-based devices, indicating its potential for energy storage applications
%U https://pubs.acs.org/doi/10.1021/acsanm.8b02002