The role of MnOx in Cu-MnOx/SiO2 catalysts for the gas-phase hydrogenation of furfural

被引：5
|
作者：
Alba-Rubio, A. C. [1 ,3 ]
Cecilia, J. A. [2 ]
Jimenez-Gomez, C. P. [2 ]
Garcia-Sancho, C. [2 ]
Cassidy, A. [1 ]
Moreno-Tost, R. [2 ]
Maireles-Torres, P. [2 ]
机构：
[1] Univ Toledo, Dept Chem Engn, Toledo, OH 43606 USA
[2] Univ Malaga, Fac Ciencias, Dept Quim Inorgan Cristalog & Mineral, Unidad Asoc ICP CSIC, Malaga 29071, Spain
[3] Clemson Univ, Dept Chem & Biomol Engn, Clemson, SC 29634 USA
来源：
MOLECULAR CATALYSIS | 2023年 / 546卷
关键词：
Furfural; Hydrogenation; Copper; Manganese; Furfuryl alcohol; 2-methylfuran; SELECTIVE HYDROGENATION; BIMETALLIC CATALYSTS; PROMISING PLATFORM; ALCOHOL; 2-METHYLFURAN; CONVERSION; SURFACE; SILICA; DEHYDRATION; PERFORMANCE;
D O I：
10.1016/j.mcat.2023.113224
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：
A series of Cu-MnOx/SiO2 catalysts was synthesized using different methodologies: incipient wetness impregnation and strong electrostatic adsorption for the incorporation of Cu species, and incipient wetness impregnation and controlled surface reactions for the addition of MnOx. The materials were characterized by H2-TPR, XRD, XPS, TEM/EDX, and N2 adsorption-desorption at -196 degrees C to study the interaction between Cu and MnOx species. These catalysts were evaluated in the gas-phase hydrogenation of furfural at 190 degrees C. While a highly dispersed Cu/SiO2 catalyst promoted the hydrogenolysis of furfuryl alcohol to methylfuran, it was found that the presence of oxygen vacancies in MnOx facilitated the interaction of the catalysts with the carbonyl group of furfural, thus promoting the formation of furfuryl alcohol as the main product.
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页数：14
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