INFLUENCE OF HYDROGEN-SULFIDE ADSORPTION ON THE CATALYTIC PROPERTIES OF METAL-OXIDES

被引：72

作者：

ZIOLEK, M

KUJAWA, J

SAUR, O

LAVALLEY, JC

机构：

[1] UNIV CAEN,ISMRA,CATALYSE & SPECTROCHIM LAB,CNRS,URA 414,F-14050 CAEN,FRANCE

[2] ADAM MICKIEWICZ UNIV POZNAN,FAC CHEM,PL-60780 POZNAN,POLAND

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1995年 / 97卷 / 01期

关键词：

ACIDIC PROPERTIES; H2S ADSORPTION; METAL OXIDES;

D O I：

10.1016/1381-1169(94)00068-9

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 effect of sulfidation by H2S at 623 K of various metal oxides (MgO, TiO2 rutile and anatase, ZrO2, CeO2, Al2O3) on their catalytic properties towards isopropanol decomposition, cumene decomposition and methanol hydrosulfurization has been studied. The results are discussed according to the H2S adsorption modes. H2S coordination mainly occurs on TiO2 samples and generates strong acid sites. The dissociative adsorption of H2S on alumina does not significantly influence its acidity. Replacement of O2- by S2- ions as in the case of MgO, ZrO2 and CeO2 mainly affects their basic or redox properties.

引用

页码：49 / 55

页数：7

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