Heterogeneous Catalysis of Mixed Oxides: Chapter 2. Chemistry and Catalysis of Mixed Oxides

Heterogeneous Catalysis of Mixed Oxides: Chapter 2. Chemistry and Catalysis of Mixed Oxides
ISBN-10
0128081090
ISBN-13
9780128081099
Category
Science
Pages
192
Language
English
Published
2013-02-28
Publisher
Elsevier Inc. Chapters
Author
Makoto Misono

Description

The chemistry of metal oxides, both single and mixed metal oxides, relevant to heterogeneous catalysis such as relationships among the composition, structure, and chemical properties of mixed oxides, is provided in perspective. The important chemical properties in heterogeneous catalysis are acid–base and reduction–oxidation (redox) properties, where ionic radii, electronegativity, valency, and tendency to form covalent bond of constituent elements are most influential. Structural factors such as lattice defects and nonstoichiometry are also relevant. Although the surface of metal oxides is different from the solid bulk and changes depending on various factors, the surface reflects more or less the solid bulk and the knowledge of bulk properties is useful to understand the catalysis of mixed oxides. In some cases, the solid bulk actually takes part in catalysis. Other fundamental features of metal oxide catalysis like synergistic effects of more than two different active sites (acid and base, acid and oxidation, etc.) are also discussed.

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