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Issue 35, 2018
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Vertically aligned MoS2 on Ti3C2 (MXene) as an improved HER catalyst

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Abstract

We have demonstrated the microwave-assisted growth of vertically aligned interlayer expanded MoS2 on conductive two-dimensional Ti3C2 MXene nanosheets (MoS2⊥Ti3C2) and investigated the produced material as an electrocatalyst for the hydrogen evolution reaction (HER). MoS2⊥Ti3C2 offers a unique inorganic hybrid structure that allows increased exposure of catalytically active edge sites of MoS2, compared to pure MoS2 with a platelet-like morphology. The vertically aligned few-layer MoS2 sheets have an expanded interlayer spacing of 9.4 Å. The MoS2⊥Ti3C2 catalyst exhibited a low onset potential (−95 mV vs. RHE) for the HER and a low Tafel slope (∼40 mV dec−1). This catalyst maintained a steady catalytic activity for the HER for over 20 hours.

Graphical abstract: Vertically aligned MoS2 on Ti3C2 (MXene) as an improved HER catalyst

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Supplementary files

Article information


Submitted
29 May 2018
Accepted
06 Aug 2018
First published
08 Aug 2018

J. Mater. Chem. A, 2018,6, 16882-16889
Article type
Communication
Author version available

Vertically aligned MoS2 on Ti3C2 (MXene) as an improved HER catalyst

N. H. Attanayake, S. C. Abeyweera, A. C. Thenuwara, B. Anasori, Y. Gogotsi, Y. Sun and D. R. Strongin, J. Mater. Chem. A, 2018, 6, 16882
DOI: 10.1039/C8TA05033C

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