Iron-Based Bimetallic Nanocatalysts for Highly Selective Hydrogenation of Acetylene in N,N-Dimethylformamide at Room Temperature

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• 作者：Binbin HuangTao Wang ; Zhan Yang ; Wentao Qian ; Jimei Long ; Guangming Zeng ; Chao Lei
• 刊名：ACS Sustainable Chemistry & Engineering
• 出版年：2017
• 出版时间：February 6, 2017
• 年：2017
• 卷：5
• 期：2
• 页码：1668-1674
• 全文大小：347K
• ISSN：2168-0485

文摘

Selective hydrogenations of alkynes are a class of essential reactions in organic synthesis chemistry. Particularly, the selective hydrogenation of acetylene to ethylene is a key step in the production of polymers. Here we have successfully performed selective hydrogenation of acetylene to ethylene in N,N-dimethylformamide by iron-based nanoparticles, especially by Pd–Fe bimetallic NPs. NaBH₄ as a hydrogen source can significantly increase the catalytic performances of nanocatalysts for acetylene hydrogenation. More importantly, the reaction is carried out at exceptionally mild temperature and under additive-free conditions with high ethylene selectivity (>90%) as well as excellent catalyst reactivity and stability. By this strategy, we could attain a catalytic activity higher by a factor of 2.2 orders of magnitude than that of the currently used industrial method. This approach may open a new way to perform selective acetylene and other alkynes hydrogenation under mild conditions, and offer another promising application for zerovalent iron reduction method.