Catalytic Activity of Sulfated and Phosphated Catalysts towards the Synthesis of Substituted Coumarin

Catalytic Activity of Sulfated and Phosphated Catalysts towards the Synthesis of Substituted Coumarin

New modified acidic catalysts were prepared from the treatment of silica, titania and silica prepared from hydrolyzed tetraethyl orthosilicate (TEOS) with sulfuric and phosphoric acid. The sulfated and phosphated silica synthesized from TEOS were calcined at 450 and 650 °C. These catalysts were char...

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Bibliographic Details
Main Authors: Nagi R. E. Radwan, Mohamed Hagar, Tarek H. Afifi, Fahd Al-wadaani, Rawda M. Okasha
Format: Article
Language:English
Published: MDPI AG 2018-01-01
Series:Catalysts
Subjects:
silica
titania
calcination process
surface modification
catalytic activity
coumarin derivatives
Online Access:http://www.mdpi.com/2073-4344/8/1/36

Internet

http://www.mdpi.com/2073-4344/8/1/36

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