Issue 4, 2021
From the journal:

Materials Advances

Atomic layer deposition of nano-scale molybdenum sulfide within a metal–organic framework for highly efficient hydrodesulfurization†

Lei Yu,ab   Wen-Gang Cui,ab   Qiang Zhang,ab   Zhuo-Fei Li,ab   Yan Shenab  and  Tong-Liang Hu ORCID logo *abc  

* Corresponding authors

a School of Materials Science and Engineering, Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China
E-mail: tlhu@nankai.edu.cn

b Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, Tianjin 300350, China

c State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China

Abstract

Molybdenum sulfide (MoS2) exhibits extremely encouraging performance in applications of hydrodesulfurization (HDS). However, due to its low active sites, incomplete sulfidation and accounting for more than 70% of the quality of the supported catalyst for alumina, without playing a catalytic role, the γ-Al2O3 supported catalyst has low reactivity and high cost. Here, we selectively functionalized MoS2 on the nodes of a metal–organic framework (MOF, NU-1000) through atomic layer deposition (ALD) and explored its catalytic performance in the HDS of dibenzothiophene. The AIM-60 (AIM = ALD in a metal–organic framework) catalyst obtained was characterized by X-ray diffraction (XRD), N2 adsorption–desorption, thermogravimetric analysis (TG), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), and scanning and transmission electron microscopy (SEM and TEM). The conversion rate of the AIM-60 material is 86.7% at 250 °C and 3 MPa, which is much better than that of traditional MoS2/γ-Al2O3 (8.6%) with the same loading. In addition, the AIM-60 catalyst shows a preference for the direct desulfurization (DDS) pathway, and it can directly convert dibenzothiophene to biphenyl, with excellent stability in real-life tests. The results indicate that AIM-60 with high activity and high stability represents a new class of HDS catalyst.

Graphical abstract: Atomic layer deposition of nano-scale molybdenum sulfide within a metal–organic framework for highly efficient hydrodesulfurization

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Article information

DOI
https://doi.org/10.1039/D0MA00955E
Article type
Paper
Submitted
05 Dec 2020
Accepted
12 Jan 2021
First published
13 Jan 2021
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2021,2, 1294-1301

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Atomic layer deposition of nano-scale molybdenum sulfide within a metal–organic framework for highly efficient hydrodesulfurization

L. Yu, W. Cui, Q. Zhang, Z. Li, Y. Shen and T. Hu, Mater. Adv., 2021, 2, 1294 DOI: 10.1039/D0MA00955E

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