Gas Phase Hydrogenation of m-Dinitrobenzene over Alumina Supported Au and Au-Ni Alloy

被引：36

作者：

Cardenas-Lizana, Fernando ^{[1
]}

Gomez-Quero, Santiago ^{[1
]}

Keane, Mark A. ^{[1
]}

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

CATALYSIS LETTERS | 2009年 / 127卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

Selective hydrogenation; m-dinitrobenzene; Au/Al2O3; Au-Ni/Al2O3; Supported alloy; CATALYTIC-HYDROGENATION; SELECTIVE HYDROGENATION; NITRO-COMPOUNDS; CHEMOSELECTIVE HYDROGENATION; GOLD NANOPARTICLES; METAL; CHLORONITROBENZENE; CHLOROANILINES; SPECTROSCOPY; REACTIVITY;

D O I：

10.1007/s10562-008-9660-9

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：

We report, for the first time, 100% selectivity in the continuous gas phase hydrogenation of m-dinitrobenzene to m-nitroaniline (m-NAN) over Au/Al2O3. The synthesis and application of an alumina supported Au-Ni alloy is also described where alloy formation is demonstrated by XRD, diffuse reflectance UV-Vis and HRTEM analyses. Under the same reaction conditions, Au/Al2O3 delivered a higher (by close to an order of magnitude) hydrogenation rate compared with the alloy. Au-Ni/Al2O3 promoted the formation of both m-NAN and m-phenylenediamine, i.e. partial and complete hydrogenation: the results are consistent with a stepwise reduction mechanism.

引用

页码：25 / 32

页数：8

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