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

SANKAR, G; KANNAN, KR; RAO, CNR; (1991) ANATASE-RUTILE TRANSFORMATION IN FE/TIO2, TH/TIO2 AND CU/TIO2 CATALYSTS AND ITS POSSIBLE ROLE IN METAL-SUPPORT INTERACTION. CATAL LETT , 8 (1) 27 - 36.

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Abstract

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.

Type:Article
Title:ANATASE-RUTILE TRANSFORMATION IN FE/TIO2, TH/TIO2 AND CU/TIO2 CATALYSTS AND ITS POSSIBLE ROLE IN METAL-SUPPORT INTERACTION
Keywords:SUPPORTED CATALYSTS, METAL-SUPPORT INTERACTION, RUTILE, ANATASE, RH/TIO2, OXIDES
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry

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