ANATASE-RUTILE TRANSFORMATION IN FE/TIO2, TH/TIO2 AND CU/TIO2 CATALYSTS AND ITS POSSIBLE ROLE IN METAL-SUPPORT INTERACTION

被引：29

作者：

SANKAR, G ^{[1
]}

KANNAN, KR ^{[1
]}

RAO, CNR ^{[1
]}

机构：

[1] INDIAN INST SCI, SOLID STATE & STRUCT CHEM UNIT, BANGALORE 560012, KARNATAKA, INDIA

来源：

CATALYSIS LETTERS | 1991年 / 8卷 / 01期

关键词：

SUPPORTED CATALYSTS; METAL-SUPPORT INTERACTION; RUTILE; ANATASE;

D O I：

10.1007/BF00764380

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：

Based on in-situ Mossbauer and X-ray diffraction studies, it is shown that in the Fe/TiO2 catalyst, the anatase-rutile transformation of the TiO2 support is facilitated by the Fe2+ ions formed during the reduction. The transformation occurs at lower temperatures in Th/TiO2 and Cu/TiO2 compared to pure TiO2. In general, the transformation of anatase to rutile seems to occur at or below the temperature (approximately 770 K) at which strong-metal-support-interaction manifests itself.

引用

页码：27 / 36

页数：10

共 20 条

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