One-step conversion of acetone to methyl isobutyl ketone over Pd-mixed oxide catalysts prepared from novel layered double hydroxides

被引：49

作者：

Hetterley, Robert D. ^{[1
]}

Mackey, Richard ^{[1
]}

Jones, James T. A. ^{[1
]}

Khimyak, Yaroslav Z. ^{[1
]}

Fogg, Andrew M. ^{[1
]}

Kozhevnikov, Ivan V. ^{[1
]}

机构：

[1] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England

来源：

JOURNAL OF CATALYSIS | 2008年 / 258卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

methyl isobutyl ketone; acetone; palladium; layered double hydroxides; catalysis;

D O I：

10.1016/j.jcat.2008.06.017

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：

Novel layered double hydroxides, [MAl4(OH)(12)](NO3)(2)center dot nH(2)O (M = (Li+)(2), Co2+, Ni2+, Cu2+, Zn2+), impregnated with palladium, have proved to be precursors to active bifunctional mixed oxide catalysts for the one-step synthesis of methyl isobutyl ketone (MIBK) from acetone and H-2 in the gas phase. High acetone conversions of up to 76% and MIBK selectivities of up to 91% were recorded at a reaction temperature of 250 degrees C and atmospheric pressure. The palladium catalysts based on Li and Zn layered double hydroxides displayed efficient catalytic performances at the low reaction temperature of 120 degrees C. Powder XRD and Al-27 MAS NMR showed that initially crystalline layered double hydroxides transformed to amorphous mixed oxide materials upon catalyst activation at 250 degrees C under H-2. (c) 2008 Elsevier Inc. All rights reserved.

引用

页码：250 / 255

页数：6

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