SPECTROSCOPIC STUDY OF PT-MGO CATALYSTS PREPARED BY THE SOL-GEL METHOD

被引：13

作者：

LOPEZ, T

GARCIACRUZ, I

GOMEZ, R

机构：

[1] Universidad Autonoma Metropolitana-Iztapalapa, Mexico D.F. 09340

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1994年 / 36卷 / 3-4期

关键词：

D O I：

10.1016/0254-0584(94)90033-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Platinum catalysts supported in magnesia were synthesized with magnesium ethoxide and hexachloroplatinic acid by the sol-gel method at different pH. They were characterized by FTIR spectroscopy, UV-Vis (diffuse reflectance), XRD, DTA and TGA. It was observed that the largest BET area corresponded to catalysts prepared at pH 7 and the strongest metal-support interaction (MSI) was observed in catalysts prepared at pH 3. The MSI occurs through the superficial hydroxyl groups.

引用

页码：222 / 230

页数：9

共 32 条

[1] EFFECTS OF WATER VAPOUR ON SINTERING OF MGO [J].