糠醛
还原胺化
催化作用
化学
活动站点
氢
金属
胺化
有机化学
作者
Huanjiang Wang,Yu‐Chen Zhang,Dan Luo,He Wang,Yurong He,Fei Wang,Xiaodong Wen
标识
DOI:10.1016/j.mcat.2023.112914
摘要
In addition to the main reaction, understanding the structure-activity relationship in the side reactions is another important goal for catalysis science. In this work, the catalytic activities and selectivities of various active metals were studied in the reductive amination of furfural (FAL). Compared with Co- and Ni-based catalysts, the excessive hydrogen of furfurylamine (FAM) was found over Ru-based catalysts at much higher reaction temperature (130 vs. 50 °C). Moreover, the evaluation of FAM hydrogenation undoubtedly substantiated the intimate relationship between H2 reaction pressure and catalytic activity. Combining the theoretical and experimental results, it is clearly verified that the active metal determines the excessive hydrogen of FAM by affecting the competitive adsorption of FAM and H on the active sites.
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