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The influence of acidity of carbon nanofibre-supported palladium catalysts in the hydrogenolysis of hydroxymatairesinol

被引：21
作者：
Markus, Heidi
Plomp, Arie J.
Maki-Arvela, Paivi
Bitter, Johannes H.
Murzin, Dmitry Yu.
机构：
[1] Abo Akad Univ, Lab Ind Chem, Proc Chem Ctr, FI-20500 Turku, Finland
[2] Univ Utrecht, Dept Inorgan Chem & Catalysis, NL-3508 TB Utrecht, Netherlands
来源：
CATALYSIS LETTERS | 2007年 / 113卷 / 3-4期
关键词：
carbon nanofibres; palladium; acidity; hydrogenolysis;
D O I：
10.1007/s10562-007-9020-1
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：
The lignan hydroxymatairesinol (HMR, extracted from Norway spruce knots) was hydrogenolysed to matairesinol (MAT) over palladium supported by carbon nanofibres (Pd/CNF) in 2-propanol at 70 degrees C under hydrogen flow. The influence of support acidity on the activity and the selectivity to MAT was studied. The acidity of the Pd/CNF catalyst was varied by heat-treatment at different temperatures in nitrogen flow. The catalysts were characterized by transmission electron microscopy (TEM), inductively coupled plasma emission mass-spectrometry (ICP-MS, metal content), H-2-chemisorption (dispersion, metal particle size), and titration using NaOH. A more acidic support material was more active and selective to the desired product MAT. The major byproduct was 7-iso-propoxymatairesinol resulting from a reaction of the solvent with HMR over the acid sites on the support. The hydrogenolysis of HMR to MAT requires both the presence of metal and acidity.
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收藏
页码：141 / 146
页数：6
相关论文
共 25 条
[1]   Phyto-oestrogens and cancer [J].
Adlercreutz, H .
LANCET ONCOLOGY, 2002, 3 (06) :364-373
[2]   Carbons as supports for industrial precious metal catalysts [J].
Auer, E ;
Freund, A ;
Pietsch, J ;
Tacke, T .
APPLIED CATALYSIS A-GENERAL, 1998, 173 (02) :259-271
[3]  
BERGERET G, 1997, HDB HETEROGENEOUS CA, V2
[4]   Synthesis of highly loaded highly dispersed nickel on carbon nanofibers by homogeneous deposition-precipitation [J].
Bitter, JH ;
van der Lee, MK ;
Slotboom, AGT ;
van Dillen, AJ ;
de Jong, KP .
CATALYSIS LETTERS, 2003, 89 (1-2) :139-142
[5]   Carbon nanofibers: Catalytic synthesis and applications [J].
De Jong, KP ;
Geus, JW .
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2000, 42 (04) :481-510
[6]   Palladium catalysts on activated carbon supports - Influence of reduction temperature, origin of the support and pretreatments of the carbon surface [J].
Gurrath, M ;
Kuretzky, T ;
Boehm, HP ;
Okhlopkova, LB ;
Lisitsyn, AS ;
Likholobov, VA .
CARBON, 2000, 38 (08) :1241-1255
[7]   The metal-support interaction in Pt/Y zeolite: evidence for a shift in energy of metal d-valence orbitals by Pt-H shape resonance and atomic XAFS spectroscopy [J].
Koningsberger, DC ;
de Graaf, J ;
Mojet, BL ;
Ramaker, DE ;
Miller, JT .
APPLIED CATALYSIS A-GENERAL, 2000, 191 (1-2) :205-220
[8]   THE EFFECT OF PRETREATMENT ON PD/C CATALYSTS .1. ADSORPTION AND ABSORPTION PROPERTIES [J].
KRISHNANKUTTY, N ;
VANNICE, MA .
JOURNAL OF CATALYSIS, 1995, 155 (02) :312-326
[9]   Reactions of hydroxymatairesinol over supported palladium catalysts [J].
Markus, H ;
Mäki-Arvela, P ;
Kumar, N ;
Heikkilä, T ;
Lehto, VP ;
Sjöholm, R ;
Holmbom, B ;
Salmi, T ;
Murzin, DY .
JOURNAL OF CATALYSIS, 2006, 238 (02) :301-308
[10]   Hydrogenolysis of hydroxymatairesinol over carbon-supported palladium catalysts [J].
Markus, H ;
Mäki-Arvela, P ;
Kumar, N ;
Kul'kova, NV ;
Eklund, P ;
Sjöholm, R ;
Holmbom, B ;
Salmi, T ;
Murzin, DY .
CATALYSIS LETTERS, 2005, 103 (1-2) :125-131
123