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Issue 35, 2015
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Few-layered MoSe2 nanosheets as an advanced electrode material for supercapacitors

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Abstract

We report the synthesis of few-layered MoSe2 nanosheets using a facile hydrothermal method and their electrochemical charge storage behavior. A systematic study of the structure and morphology of the as-synthesized MoSe2 nanosheets was performed. The downward peak shift in the Raman spectrum and the high-resolution transmission electron microscopy images confirmed the formation of few-layered nanosheets. The electrochemical energy-storage behavior of MoSe2 nanosheets was also investigated for supercapacitor applications in a symmetric cell configuration. The MoSe2 nanosheet electrode exhibited a maximum specific capacitance of 198.9 F g−1 and the symmetric device showed 49.7 F g−1 at a scan rate of 2 mV s−1. A capacitance retention of approximately 75% was observed even after 10 000 cycles at a high charge–discharge current density of 5 A g−1. The two-dimensional MoSe2 nanosheets exhibited a high specific capacitance and good cyclic stability, which makes it a promising electrode material for supercapacitor applications.

Graphical abstract: Few-layered MoSe2 nanosheets as an advanced electrode material for supercapacitors

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Article information


Submitted
27 May 2015
Accepted
08 Jul 2015
First published
20 Jul 2015

Dalton Trans., 2015,44, 15491-15498
Article type
Paper

Few-layered MoSe2 nanosheets as an advanced electrode material for supercapacitors

S. K. Balasingam, J. S. Lee and Y. Jun, Dalton Trans., 2015, 44, 15491
DOI: 10.1039/C5DT01985K

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