RESONANCE RAMAN-SPECTROSCOPIC STUDIES OF PH INDICATORS ADSORBED ON GAMMA-AL2O3

被引：10

作者：

BISSET, A ^{[1
]}

DINES, TJ ^{[1
]}

机构：

[1] UNIV DUNDEE,DEPT CHEM,DUNDEE DD1 4HN,SCOTLAND

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 1995年 / 26卷 / 8-9期

关键词：

D O I：

10.1002/jrs.1250260829

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Resonance Raman spectra were recorded from methyl red, ethyl red and alpha-naphthyl red adsorbed from toluene solutions on to gamma-alumina. The spectra shaw clear evidence for the protonation of all three indicators. Adsorption data over a wide range of equilibrium concentrations give satisfactory fits to Langmuir isotherms. Together with the spectroscopic data, the isotherms permit the determination of the densities of Breasted acidic sites on the gamma-alumina surface. The densities of acidic sites decrease after calcination at 300 degrees C.

引用

页码：791 / 798

页数：8

共 15 条

[1]

BENESI GA, 1957, J PHYS CHEM-US, V61, P570

[2] ACIDITY OF CATALYST SURFACES .1. ACID STRENGTH FROM COLORS OF ADSORBED INDICATORS [J].