AN INFRARED-SPECTROSCOPY STUDY OF 1-BUTENE AND ITS ISOMERS ADSORBED ONTO 12-TUNGSTOPHOSPHORIC ACID SIO2

被引：10

作者：

GAO, S

MOFFAT, JB

机构：

[1] UNIV WATERLOO,DEPT CHEM,WATERLOO,ON N2L 3G1,CANADA

[2] UNIV WATERLOO,GUELPH WATERLOO CTR GRAD WORK CHEM,WATERLOO,ON N2L 3G1,CANADA

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1995年 / 105卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ADSORPTION; IR SPECTROSCOPY; SIO2; 12-TUNGSTOPHOSPHORIC ACID;

D O I：

10.1016/0927-7757(95)03327-9

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：

The infrared spectra of species formed from the adsorption of 1-butene, cis-2-butene and isobutene on 12-tungstophosphoric acid (H3PW12O40) show primarily saturated C-C bonds and little or no evidence of the olefinic structure. The 2960 cm(-1) band, attributed to asymmetric CH3 stretching is the most prominent band with all three of the isomers. The infrared spectra of the isomers show evidence of the polymerization of butene on the surface of the catalyst. The intensities of the 2960, 2933 and 2875 cm(-1) bands observed in the spectra of 1-butene essentially vanished on evacuation at 300 degrees C but the band at 1590 cm(-1) attributed to conventional coking remained largely intact under the same conditions.

引用

页码：133 / 142

页数：10

共 77 条

[1] ISOMERIZATION OF BUTENES AS A TEST REACTION FOR MEASUREMENT OF SOLID CATALYST ACIDITY [J].