کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6454589 | 1418817 | 2017 | 12 صفحه PDF | دانلود رایگان |
- Polymolybdate anions were transformed into gemini-surfactant linked Mo precursor.
- As-prepared NiMo/SiO2-Al2O3 had highly dispersed Ni-Mo-S with improved stacking.
- This NiMo/SiO2-Al2O3 showed excellent activity for the ultra-deep HDS of fuel.
This article proposes a novel gemini surfactant-assisted synthesis of Mo precursor for preparing NiMo/SiO2-Al2O3 ultra-deep hydrodesulfurization (HDS) catalysts. The proposed method transforms polymolybdate anions into gemini surfactant-linked Mo precursor (GSMP), which facilitates the formation of highly dispersed MoS2 phases with improved stacking and therefore produces a large number of accessible Ni-Mo-S phases after Ni incorporation. The GSMP-based NiMo/SiO2-Al2O3 catalyst presents higher catalytic activity for the HDS of 4,6-dimethyldibenzothiophene and fluid catalytic cracking (FCC) diesel than its counterparts prepared via impregnation and the cetyltrimethylammonium bromide-assisted hydrothermal method.
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Journal: Applied Catalysis B: Environmental - Volume 203, April 2017, Pages 839-850