Au/Mo₂N as a new catalyst formulation for the hydrogenation of p-chloronitrobenzene in both liquid and gas phases

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• 作者：Fernando Cá ; rdenas-Lizana^a ; ^{fernando.cardenaslizana@epfl.ch} ; Daniel Lamey^a ; Noé ; mie Perret^b ; Santiago Gó ; mez-Quero^c ; Lioubov Kiwi-Minsker^a ; Mark A. Keane^b ; ^{M.A.Keane@hw.ac.uk}
• 关键词：Selective hydrogenation ; p-Chloronitrobenzene ; p-Chloroaniline ; Au/Mo2N ; Batch liquid phase ; Continuous gas phase
• 刊名：Catalysis Communications
• 出版年：2012
• 期刊代码：12_15667367
• 类别：ce
• 出版时间：5 May, 2012
• 卷：21
• 期：Complete
• 页码：46-51
• 文件大小：765 K

摘要

The batch liquid phase hydrogenation of p-chloronitrobenzene over Mo₂N resulted in the sole formation of p-chloroaniline. Incorporation of Au nanoparticles (mean size = 8 nm) enhanced hydrogen uptake with a four-fold increase in rate, retention of ultraselectivity with stability over repeated reaction cycles. Reaction exclusivity to p-chloroaniline extended to continuous gas phase operation where Au/Mo₂N outperformed Au/Al₂O₃ as a benchmark. Under the same conditions, Pd/Mo₂N was non-selective, generating nitrobenzene and aniline via combined hydrodechlorination and hydrogenation. These results demonstrate the viability of Au/Mo₂N as a new catalyst formulation in selective substituted nitroarene hydrogenation.