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- Title
A Ni–Mo Polyoxometalate Based on Octamolybdate: Self-assemble and Application in Hydrotreating Catalyst.
- Authors
Jilei, Liang; Mengmeng, Wu; Nianqing, Zhu; Xinxing, Gao; Guanxing, Zhu; Tingting, Huang; Yunqi, Liu; Chenguang, Liu
- Abstract
With the help of hydrogen bonding and π⋯π stacking, the small molecular clusters in the impregnating solution was induced to self-assemble and form a new Ni–Mo polyoxometalate based on octamolybdate with a molecular formula of [Ni(pyz)6] [Mo8O26(pyz)2]⋅10H2O (pyz = pyrazole). The polyoxometalate was structurally characterized detailed by various technologies, and its sulfide was also characterized to make a preliminary study to explore the use of it as a potential NiMoS active phase precursor. Much more NiMoS active phase and higher catalytic activity of the Ni–Mo sulfided catalyst was found, and the structure-directing effects can account for the phenomenon. The results show the Ni–Mo polyoxometalate [Ni(pyz)6] [Mo8O26(pyz)2]⋅10H2O can make a superior precursor to prepare the hydrodesulfurization catalyst, and it provides a new preparation methodology to the rational design and controllable preparation of superior hydrodesulfurization catalysts.
- Subjects
HYDROTREATING catalysts; CHEMICAL formulas; CATALYTIC activity; DESULFURIZATION; HYDROGEN bonding; KEGGIN anions; MOLECULAR clusters
- Publication
Catalysis Letters, 2023, Vol 153, Issue 2, p1
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-022-04008-0