Porous silicon nitride as a superbase catalyst

被引:69
作者
Kaskel, S [1 ]
Schlichte, K [1 ]
机构
[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany
关键词
D O I
10.1006/jcat.2001.3263
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 synthesis of a new mesoporous support based on high surface area silicon nitride and its use as a solid superbase is reported. The 2,3-dimethylbut-1-ene isomerization is used as a test reaction to compare the activity of individual catalysts depending on the synthesis conditions of the support. Various impregnation methods and different metal loadings are studied. In particular, potassium catalysts, obtained by impregnation from ammoniacal solution, show high catalytic activity for alkene isomerization. Heat treatments of the support at 1273 K and potassium loadings up to 30% are beneficial for high conversion at low temperature. (C) 2001 Academic Press.
引用
收藏
页码:270 / 274
页数:5
相关论文
共 25 条
[11]   Porous silicon nitride as catalyst [J].
Hullmann, D ;
Wendt, G ;
Ziegenbalg, G .
CHEMIE INGENIEUR TECHNIK, 1999, 71 (12) :1410-1414
[12]   Synthesis of mesoporous silicon imido nitride with high surface area and narrow pore size distribution [J].
Kaskel, S ;
Farrusseng, D ;
Schlichte, K .
CHEMICAL COMMUNICATIONS, 2000, (24) :2481-2482
[13]  
MARCHAND R, 1970, REV CHIM MINER, V7, P87
[14]   Nitridosilicates - A significant extension of silicate chemistry [J].
Schnick, W ;
Huppertz, H .
CHEMISTRY-A EUROPEAN JOURNAL, 1997, 3 (05) :679-683
[15]   NITRIDO-SODALITES .2. SYNTHESIS, CRYSTAL-STRUCTURE AND PROPERTIES OF M(6+(Y/2)-X)H-2X[P12N24]Z(GAMMA) WITH M=FE, CO, NI, MN, Z=CL, BR, I - 0-LESS-THAN-OR-EQUAL-TO-X LESS-THAN-OR-EQUAL-TO-4 - Y-LESS-THAN-OR-EQUAL-TO-2 [J].
SCHNICK, W ;
STOCK, N ;
LUCKE, J ;
VOLKMANN, M ;
JANSEN, M .
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1995, 621 (06) :987-992
[16]   NITRIDO SODALITES .1. SYNTHESIS, CRYSTAL-STRUCTURE, AND PROPERTIES OF ZN7-XH2X[P12N24]CL-2 WITH 0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-3 [J].
SCHNICK, W ;
LUCKE, J .
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1994, 620 (11) :2014-2019
[17]  
SCHNICK W, 1994, STUD SURF SCI CATAL, V84, P2221
[18]   ZN7[P12N24]CL2 - A SODALITE WITH A PHOSPHORUS-NITROGEN FRAMEWORK [J].
SCHNICK, W ;
LUCKE, J .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1992, 31 (02) :213-215
[19]  
Stock N, 1998, CHEM-EUR J, V4, P1822, DOI 10.1002/(SICI)1521-3765(19980904)4:9<1822::AID-CHEM1822>3.0.CO
[20]  
2-K