Ni-Based heterogeneous catalysts for the transformation of fatty acids into higher yields of O-free hydrocarbons
Ni-Based heterogeneous catalysts for the transformation of fatty acids into higher yields of O-free hydrocarbons
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DOI：
10.1039/d0gc00853b
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发表时间：
2020-06
期刊：
影响因子：
9.8
通讯作者：
D. Valencia;Citlalli Zenteno;D. Gómora-Herrera;M. Gómez-Pérez;J. Aburto
中科院分区：
文献类型：
--
作者：
D. Valencia;Citlalli Zenteno;D. Gómora-Herrera;M. Gómez-Pérez;J. Aburto
通过改变浸渍液中的化合物，合成了一系列新型的催化材料。一种刚性、芳香和双齿分子1,10-菲罗啉（PhN）在浸渍成介孔KIT-5载体之前作为配体与Ni2+物种结合。将原位合成的配位化合物浸渍在KIT-5中，得到的材料具有较好的金属分散性，在Ni: PhN = 1:1的摩尔比下分散性最好。对材料进行了棕榈酸加氢脱氧（HDO）实验。我们发现，在浸渍液中使用PhN作为螯合剂可以获得高活性和稳定的催化剂。这些材料的选择性是显著的，因为在HDO产物中只检测到无o分子。因此，Ni-PhN配合物与介孔SiO2的结合可以进一步用于生物质原料的催化转化。
A series of novel catalytic materials were synthesized by changing the chemical compounds in the impregnation solutions. A rigid, aromatic and bidentate molecule 1,10-phenanthroline (PhN) was used as a ligand to bind Ni2+ species prior to impregnation into a mesoporous KIT-5 support. The in situ synthesized coordination compounds were impregnated into KIT-5 and the resulting materials exhibited better dispersion of metal species, being the best at a molar ratio Ni : PhN = 1 : 1. The materials were tested in the hydrodeoxygenation (HDO) of palmitic acid. We found that highly active and stable catalysts were obtained when using PhN as a chelating agent in the impregnation solution. The selectivity of these materials is remarkable since only O-free molecules were detected in the HDO products. Therefore, Ni–PhN complexes in combination with mesoporous SiO2 can be further exploited for the catalytic transformation of biomass feedstocks.