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Research Article

Surface curvature-confined strategy to ultrasmall nickel-molybdenum sulfide nanoflakes for highly efficient deep hydrodesulfurization

Xin Kang1, Jiancong Liu1( ), Chungui Tian1, Dongxu Wang1, Yaorui Li2, Hongyan Zhang1, Xusheng Cheng1, Aiping Wu1, Honggang Fu1( )
Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China, Heilongjiang University, Harbin 150080, China
College of Nuclear Science and Technology, Harbin Engineering University, 145 Nantong Street, Harbin 150001, China
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An erratum to this article is available online at:
https://doi.org/10.1007/s12274-024-6798-8

Graphical Abstract

Abstract

Size-controlled synthesis of two-dimensional (2D) catalysts with low stacking numbers and small nanoflake lengths is crucial for promoting the catalytic performance in diverse heterogeneous catalysis. Herein, we report a facile and general "surface curvature-confined synthesis" strategy to modulate the slab lengths and stacking numbers of 2D transition metal sulfides by controlling the strain induced by different surface curvature of supports. An efficient NiMo sulfide with shorter slab length (average 3.71 nm), less stacking number (1-2 layers) and more edge active sites is synthesized onto ZSM-5 zeolites with the average size of 100 nm, which shows superior kHDS value of dibenzothiophene (14.05 × 10-7 mol/(g·s)), enhanced stability up to 80 h, and high direct desulfurization selectivity (> 95%). This design concept is also proved to be generally applicable to modulate the slab lengths and stacking numbers of other 2D catalysts such as MoS2 and WS2 nanoflakes, which shows great potentials for developing more ultrasmall 2D catalysts with controlled sizes and excellent catalytic activities.

Keywords

size-controlled synthesisultrasmall two-dimensional (2D) catalystszeolitessurface curvaturehydrodesulfurization

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Nano Research
Volume 13 Issue 3,
March 2020
Pages 882-890
DOI: 10.1007/s12274-020-2716-x
Cite this article:
Kang X, Liu J, Tian C, et al. Surface curvature-confined strategy to ultrasmall nickel-molybdenum sulfide nanoflakes for highly efficient deep hydrodesulfurization. Nano Research, 2020, 13(3): 882-890. https://doi.org/10.1007/s12274-020-2716-x
Topics:
Binary alloysCatalysis Catalyst activityLayered semiconductorsNickel compoundsSulfur compoundsTransition metalsTungsten compoundsZeolites

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Received: 19 December 2019
Revised: 12 February 2020
Accepted: 13 February 2020
Published: 09 March 2020
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020
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