Metal-Oxygen Clusters: The Surface and Catalytic Properties of Heteropoly Oxometalates (Fundamental and Applied Catalysis)

Provides an overview of the surface chemistry and catalytic properties of heteropoly oxometalates. After a brief look at the basics of heteropoly oxometalates, the book discusses the synthesis, characterization, structure, bulk properties and stability of these materials. Content: Preliminaries; CONTENTS; CHAPTER 1. A BRIEF LOOK AT THE EARLY HISTORY OF HETEROPOLY OXOMETALATES; CHAPTER 2. SYNTHESIS; CHAPTER 3. CHARACTERIZATION; CHAPTER 4. STRUCTURE AND BULK PROPERTIES; CHAPTER 5. STABILITY; CHAPTER 6. SUPPORTED HETEROPOLY ACIDS AND THEIR DERIVATIVES; CHAPTER 7. MICROPOROSITY; CHAPTER 8. THE TWO FUNCTIONS: ACIDITY AND OXIDATION-REDUCTION; CHAPTER 9. ACID-CATALYZED PROCESSES; CHAPTER 10. OXIDATION PROCESSES; CHAPTER 11. ENVIRONMENTALLY RELATED PROCESSES; INDEX; Abstract: Provides an overview of the surface chemistry and catalytic properties of heteropoly oxometalates. After a brief look at the basics of heteropoly oxometalates, the book discusses the synthesis, characterization, structure, bulk properties and stability of these materials "Metal-Oxygen Clusters is the first book providing an overview of the surface chemistry and catalytic properties of heteropoly oxometalates. After a brief look at the early knowledge of heteropoly oxometalates, the book discusses the synthesis, characterization, structure, bulk properties, and stability of these materials. The balance and largest portion of the volume is devoted to the exploration of the properties of these solids as catalysts in acid-catalyzed and oxidation processes in supported or unsupported forms.". "This book provides an up-do-date review of the methods for synthesizing heteropoly oxometalates of Keggin structure, techniques from spectroscopic through electrochemical to elemental analysis for oxometalate characterization and the current information on their structure, bulk properties, and their stabilities at high temperatures as well as under acid and alkaline conditions. The book further discusses the materials employed as supports for the title solid and the results of the examination of the supported materials. Methods for the identification of the nature and source of the two catalytic functions, the acidic and oxidative properties, of the heteropoly oxometalates are reviewed and discussed. Use of both the supported and unsupported heteropoly oxometalates as catalysts in acidity-requisite processes ranging from methanol conversion to hydrocarbons to ring-expansion and contraction processes and in oxidation processes from methane cyclohexane are described and related to the aforementioned properties."--BOOK JACKET. Metal-Oxygen Clusters is the first book, providing an overview of the surface chemistry and catalytic properties of heteropoly oxometalates. After a brief look at the early knowledge of heteropoly oxometalates, the book discusses the synthesis, characterization, structure, bulk properties and stability of these materials. The remainder and the largest portion of the book explores the properties of these solids as catalysts in acid-catalyzed and oxidation processes in supported or unsupported forms. The book provides an up-to-date review of the methods for synthesizing heteropoly oxometalates of Keggin structure, techniques from spectroscopic through electrochemical to elemental analysis for their characterization and the current information on their structure, bulk properties and their stabilities at high temperatures and under acid and alkaline conditions. The book discusses the materials employed as supports for the title solid and the results of the examination of the supported materials. Methods for the identification of the nature and source of the two catalytic functions, the acidic and oxidative properties, of the heteropoly oxometalates are reviewed and discussed. The use of both the supported and unsupported heteropoly oxometalates as catalysts in acidity-requisite processes ranging from methanol conversion to hydrocarbons to ring-expansion and contraction processes and in oxidation processes from methane cyclohexane are described and related to the aforementioned properties. Preliminaries......Page 1 CONTENTS......Page 10 CHAPTER 1. A BRIEF LOOK AT THE EARLY HISTORY OF HETEROPOLY OXOMETALATES......Page 15 CHAPTER 2. SYNTHESIS......Page 19 CHAPTER 3. CHARACTERIZATION......Page 27 CHAPTER 4. STRUCTURE AND BULK PROPERTIES......Page 43 CHAPTER 5. STABILITY......Page 55 CHAPTER 6. SUPPORTED HETEROPOLY ACIDS AND THEIR DERIVATIVES......Page 85 CHAPTER 7. MICROPOROSITY......Page 111 CHAPTER 8. THE TWO FUNCTIONS: ACIDITY AND OXIDATION-REDUCTION......Page 157 CHAPTER 9. ACID-CATALYZED PROCESSES......Page 189 CHAPTER 10. OXIDATION PROCESSES......Page 241 CHAPTER 11. ENVIRONMENTALLY RELATED PROCESSES......Page 303 INDEX......Page 321 Although some disagreement on the topic appears in the literature, the first heteropoly compound can be traced to the work of Berzelius who in 1826 prepared ammonium 12-molybdophosphate as a yellow precipitate from the addition of ammonium molybdate to phosphoric acid.