Hydrogenation of nitrobenzene over palladium-supported catalysts-Effect of support

被引：140
|
作者：
Sangeetha, P. [1 ,3 ]
Shanthi, K. [1 ]
Rao, K. S. Rama [2 ]
Viswanathan, B. [3 ]
Selvam, P. [3 ]
机构：
[1] Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, India
[2] Indian Inst Chem Technol, Inorgan & Phys Chem Div, Hyderabad 500007, Andhra Pradesh, India
[3] Indian Inst Technol, Dept Chem, Natl Ctr Catalysis Res, Madras 600036, Tamil Nadu, India
来源：
APPLIED CATALYSIS A-GENERAL | 2009年 / 353卷 / 02期
关键词：
Hydrotalcite; MgO; gamma-Al2O3; Palladium; Hydrogenation; PHENOL HYDROGENATION; PD CATALYSTS; HYDROTALCITES;
D O I：
10.1016/j.apcata.2008.10.044
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Vapor phase hydrogenation of nitrobenzene is reported on I wt.% Pd supported on hydrotalcite, MgO and gamma-Al2O3 catalysts. The catalysts were prepared in the laboratory using a wet impregnation method and were characterized by XRD, BET surface area, TPR, TEM, XPS and CO chemisorption studies. The conversion of nitrobenzene was studied in the temperature region of 498-573 K and compared on all the catalysts. An impressive catalytic performance of nitrobenzene conversion was observed on hydrotalcite supported Pd catalyst. CO chemisorption and TEM results prove that palladium disperses better on hydrotalcite supports when compared with other conventional supports such as MgO and gamma-Al2O3, which is responsible for the high conversion of nitrobenzene. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：160 / 165
页数：6
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