This article presents novel decyltrimethylammonium bromide-dispersed Ni–Mo sulfide (DTMA-NiMo) as a precursor for preparing an efficient NiMoS/γ-Al₂O₃ hydrodesulfurization (HDS) catalyst. The as-synthesized DTMA-NiMo is a sulfide containing both long-chain quaternary ammonium and Ni–Mo–S elements. The proposed method not only significantly improves the dispersion of Mo species but also greatly promotes the incorporation of Ni into MoS₂ slabs, leading to an increase in the number of NiMoS phases. As a result, the DTMA-NiMo-based NiMoS/γ-Al₂O₃ catalyst exhibits much higher activity for the HDS of 4,6-dimethyldibenzothiophene (4,6-DMDBT) and fluid catalytic cracking (FCC) diesel than NiMoS/γ-Al₂O₃ catalysts prepared by the co-impregnation and tetrapropylammonium bromide (TPAB)-assisted methods. This novel strategy sheds a light on the facile and low-cost preparation of superior NiMoS phases without sulfidation treatment.

中文翻译：

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由新型Ni（MoS4）2（C13H30N）2前驱体构建的NiMoS优良相上的燃料超深加氢脱硫

本文介绍新癸基三甲基溴化铵分散的NiMo硫化物（DTMA-的NiMo）作为用于制备高效NiMoS /γ-Al系的前体₂ ö ₃加氢脱硫（HDS）催化剂。合成后的DTMA-NiMo是一种既含有长链季铵盐又含有Ni-Mo-S元素的硫化物。所提出的方法不仅显着改善了Mo物种的分散，而且极大地促进了Ni掺入MoS ₂平板中，从而导致NiMoS相的数量增加。其结果是，基于DTMA-的NiMo-NiMoS /γ-Al系_2个ö ₃催化剂显示出高得多的对4,6-二甲基（4,6-DMDBT）和流化催化裂化（FCC）柴油比NiMoS的HDS活性/ γ-铝₂通过共浸渍和四丙基溴化铵（TPAB）辅助方法制备的O ₃催化剂。这种新颖的策略为无需硫化处理的便捷且低成本的高级NiMoS相制备提供了启示。