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Study on Novel Approaches to the Synthesis of Au/TS-1 Catalysts for Gas-phase Propylene Epoxidation in the Presence of O2 and H2

ACKNOWLEDGEMENTS第4-6页
ABSTRACT第6-7页
摘要(CHINESE ABSTRACT)第8-9页
LIST OF ABBREVIATIONS AND ACRONYMS第9-10页
TABLE OF CONTENTS第10-13页
LIST OF FIGURES第13-15页
LIST OF TABLES第15-16页
CHAPTER 1 INTRODUCTION第16-34页
    1.0 General Introduction第16-17页
    1.1 Propylene Oxide第17-18页
    1.2 Direct Gas-Phase Catalytic Synthesis of Propylene Oxide Using O_2/H_2 Mixtures第18-20页
    1.3 Preparation of Gold Catalysts for PO Production第20-28页
        1.3.1 Co-precipitation第20-21页
        1.3.2 Impregnation第21-22页
        1.3.3 Chemical vapor deposition(CVD)第22-23页
        1.3.4 Liquid phase grafting第23-24页
        1.3.5 Deposition-precipitation(DP)第24-25页
        1.3.6 Gold sols method第25-27页
        1.3.7 Bioreduction-assisted preparation of Au/TS-1 catalyst第27页
        1.3.8 Gold(I)thiosulfate complex method第27-28页
    1.4 Mechanism of Supported Gold Catalyst-Mediated Gas-Phase Propylene Epoxidation第28-31页
    1.5 Objectives,Significance and Scope of Research第31-34页
CHAPTER 2 EXPERIMENTAL SECTION第34-46页
    2.1 Materials第34页
    2.2 Bioreduction-assisted Catalyst Preparation第34-37页
        2.2.1 Bioreduction of AuPPh_3Cl in organic and polar aprotic solvents第35页
        2.2.2 Bioreduction of gold thiosulfate complex on TS-1第35-37页
    2.3 Chemical Synthesis of Catalysts Using Au(I) Thiosulfate Complex第37页
    2.4 Characterization第37-40页
        2.4.1 Powder X-ray diffraction(XRD)measurements第37-38页
        2.4.2 UV/Vis Spectroscopy第38页
        2.4.3 UV-Vis diffuse reflectance spectroscopy(UV-Vis DRS)第38-39页
        2.4.4 Transmission electron microscopy(TEM)第39页
        2.4.5 Scanning electron microscopy(SEM)第39-40页
    2.5 Catalyst Perflormance Evaluation in Gas-Phase Propylene Epoxidation第40-46页
        2.5.1 Effect of nominal gold loading第43页
        2.5.2 Effect of kind of acid used for pH adjustment第43页
        2.5.3 Effect of Na_2S_2O_3:Au mole ratio第43-44页
        2.5.4 Effect of pH第44页
        2.5.5 Effect of post-calcination temperature第44-46页
CHAPTER 3 BIOREDUCTION-ASSISTED CATALYST PREPARATION第46-50页
    3.1 Bioreduction of AuPPh_3Cl in Organic and Polar Aprotic Solvents第46-47页
    3.2 Bioreduction-assisted Au/TS-1 Catalyst Preparation Using Gold Thiosulfate Complex as Precursor第47-50页
CHAPTER 4 CATALYST PREPARATION BY CHEMICAL SYNTHESIS USING GOLD(I)THIOSULFATE COMPLEX第50-68页
    4.1 Effect of Nominal Gold Loading第50-54页
    4.2 Effect of Kind of Acid Used for pH Adjustment第54-57页
    4.3 Effect of Na_2S_2O_3:Au Ratio第57-60页
    4.4 Effect of pH第60-63页
    4.5 Effect of Post-calcination Temperature第63-68页
CHAPTER 5 CONCLUSIONS AND SUGGESTIONS第68-72页
    5.1 Conclusions第68-69页
    5.2 Suggestions for Future Work第69-72页
APPENDICES第72-96页
    APPENDIX A第73-93页
    APPENDIX B第93-95页
    APPENDIX C第95-96页
REFERENCES第96-104页
Publication During Study第104页

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