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IJC-A Vol.48A(10) [October 2009] >


Title: Liquid phase hydrogenation of chloronitrobenzene to chloroaniline with PtM/CNTs (M=La, Ce, Pr, Nd and Sm) catalysts
Authors: Yang, Juhong
Xiong, Chunhua
Han, Xiaoxiang
Zhou, Lingxiao
Keywords: Catalysts
Hydrogenation
Liquid phase hydrogenation
Haloamines
Platinum
Carbon nanotubes
Issue Date: Oct-2009
Publisher: CSIR
IPC CodeInt. Cl.9: B01J21/18C; B01J23/42; C07B35/02, C07C5/02, C07C17/354
Abstract: Hydrogenation properties of chloronitrobenzene with Pt/CNT and PtM/CNT catalysts (M = La, Ce, Pr, Nd and Sm) have been studied in ethanol at 303 K and normal pressure. The results show that the hydrogenation of chloronitrobenzene can be carried out with PtM/CNT catalysts. The conversion of chloronitrobenzene is above 99% and chloroaniline is the main product in hydrogenation with PtM/CNT catalysts. Electron deficient species of the second element promote the specific rate constant turnover frequency expressed as per surface Pt atom by activating the nitrogen-oxygen bond. PtCe/CNT catalyst exhibits the best catalytic activity (TOF = 0.47 s-1) and the highest yield of p-CAN (97.5 mol%). PtSm/CNT catalyst shows the best yields for m-CAN (98.0 mol%) and o-CAN (96.9 mol%). PtCe/CNT (1.0 wt%) catalyst exhibits good stability for hydrogenation of p chloronitrobenzene
Page(s): 1358-1363
ISSN: 0975-0975 (Online); 0376-4710 (Print)
Source:IJC-A Vol.48A(10) [October 2009]

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