Synthesis and Understanding of Novel Catalysts

Stair, Peter C.

Northwestern University (Evanston, Ill.)

关键词: Catalysis;    37 Inorganic, Organic, Physical, And Analytical Chemistry Catalysis;   

DOI  :  10.2172/1087079
RP-ID  :  DOE/ER/14789-1
RP-ID  :  FG02-97ER14789
RP-ID  :  1087079

美国|英语

来源: UNT Digital Library

【 摘 要 】

The research took advantage of our capabilities to perform in-situ and operando Raman spectroscopy on complex systems along with our developing expertise in the synthesis of uniform, supported metal oxide materials to investigate relationships between the catalytically active oxide composition, atomic structure, and support and the corresponding chemical and catalytic properties. The project was organized into two efforts: 1) Synthesis of novel catalyst materials by atomic layer deposition (ALD). 2) Spectroscopic and chemical investigations of coke formation and catalyst deactivation. ALD synthesis was combined with conventional physical characterization, Raman spectroscopy, and probe molecule chemisorption to study the effect of supported metal oxide composition and atomic structure on acid-base and catalytic properties. Operando Raman spectroscopy studies of olefin polymerization leading to coke formation and catalyst deactivation clarified the mechanism of coke formation by acid catalysts.