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A highly dispersed Ni3P/HZSM-5 catalyst for hydrodeoxygenation of phenolic compounds to cycloalkanes
Journal of Catalysis ( IF 6.5 ) Pub Date : 2022-05-02 , DOI: 10.1016/j.jcat.2022.04.024
Zhiquan Yu 1 , Yao Wang 1, 2 , Guoqiang Zhang 1 , Zhichao Sun 1 , Ying-Ya Liu 1 , Chuan Shi 1 , Wei Wang 1, 3 , Anjie Wang 1, 2
Affiliation  

A highly dispersed Ni3P/HZSM-5 catalyst was prepared by deposition-precipitation of Ni species followed by electroless plating and thermal treatment, and characterized by means of XRD, ICP, N2 physical adsorption, TEM, XPS, NH3-TPD, and CO chemisorption. Electroless plating reaction takes place in an aqueous solution under mild conditions, facilitating the high dispersion of the formed Ni3P particles. XRD measurements illustrated the lamellar nickel phyllosilicate was produced at the first step of deposition-precipitation, amorphous Ni-P was formed in the subsequent electroless plating, and highly dispersed Ni3P crystallites were generated in thermal treatment. TEM observation demonstrated that the average particle size of Ni3P crystallites in the prepared Ni3P/HZSM-5 catalyst was 4.3 nm. Bifunctional Ni3P/HZSM-5 was investigated in hydrodeoxygenation (HDO) of phenolic compounds, including phenol, m-cresol, and guaiacol. Ni3P/HZSM-5 exhibited high catalytic performance in HDO with enhanced hydrogenation and dehydration pathway.



中文翻译:

一种高度分散的 Ni3P/HZSM-5 催化剂,用于酚类化合物加氢脱氧生成环烷烃

采用沉积-沉淀Ni物质、化学镀和热处理制备高分散Ni 3 P/HZSM-5催化剂,并通过XRD、ICP、N 2物理吸附、TEM、XPS、NH 3 -TPD等手段对其进行表征。 , 和 CO 化学吸附。化学镀反应发生在温和条件下的水溶液中,有利于形成的Ni 3 P颗粒的高度分散。XRD 测量表明,在沉积-沉淀的第一步产生了层状的页硅酸镍,在随后的化学镀中形成了非晶态 Ni-P,并且高度分散的 Ni 3P微晶在热处理中产生。TEM观察表明,制备的Ni 3 P/HZSM-5催化剂中Ni 3 P微晶的平均粒径为4.3 nm。在酚类化合物(包括苯酚、间甲酚和愈创木酚)的加氢脱氧 (HDO) 中研究了双功能 Ni 3 P/HZSM-5。Ni 3 P/HZSM-5 在 HDO 中表现出高催化性能,具有增强的加氢和脱水途径。

更新日期:2022-05-07
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