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Vertically Aligned MoS2 on Ti3C2 (MXene) as an Improved HER Catalyst

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 an 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 hydrogen evolution and a low Tafel slope (~40 mV dec-1). The catalyst maintained a steady catalytic activity for the HER for over 20 hours.

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Publication details

The article was received on 29 May 2018, accepted on 06 Aug 2018 and first published on 08 Aug 2018


Article type: Communication
DOI: 10.1039/C8TA05033C
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Vertically Aligned MoS2 on Ti3C2 (MXene) as an Improved HER Catalyst

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

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