Preparation and characterization of nanocrystalline cerium-based oxides as a carbon monoxide oxidation catalyst.

Ho Chun Man.Thesis (M.Phil.)--Chinese University of Hong Kong, 2005.Includes bibliographical references.Abstracts in English and Chinese.ABSTRACT --- p.ivDECLARATION --- p.viACKNOWLEDGEMENT --- p.viiTABLE OF CONTENTS --- p.viiiLIST OF TABLES --- p.xiLIST OF FIGURES --- p.xiiChapter Chapter One: --- Introduction --- p.1Chapter 1.1 --- Overview --- p.1Chapter 1.2 --- Fundamental of CeO2 --- p.2Chapter 1.3.1 --- Synthesis and Modification of Ceria-based Materials --- p.5Chapter 1.3.1 --- Synthetic Method --- p.5Chapter 1.3.2 --- "Mesoporous Structure of Ce02, CexZr1-x02" --- p.6Chapter 1.3.3 --- Doped Ce02 Materials --- p.6Chapter 1.3.4 --- Fabrication of Ceria and Cerium-based Nanoparticles --- p.7Chapter 1.4 --- Scope of work --- p.8Chapter 1.5 --- References --- p.11Chapter Chapter Two: --- Meso- and Macro-porous Pd/CexZr1-x02 as Carbon Monoxide Oxidation Catalysts --- p.16Chapter 2.1 --- Introduction --- p.16Chapter 2.2 --- Experimental Section --- p.18Chapter 2.2.1 --- Sample Preparation - Synthesis of the Catalyst Support --- p.18Chapter 2.2.2 --- Addition of Pd to the Catalyst Support --- p.19Chapter 2.2.3 --- Characterization --- p.20Chapter 2.2.4 --- Carbon monoxide oxidation measurement --- p.21Chapter 2.3 --- Results and Discussion --- p.22Chapter 2.3.1 --- XRD analysis --- p.22Chapter 2.3.2 --- SEM and TEM --- p.25Chapter 2.3.3 --- N2-Soprtion --- p.32Chapter 2.3.4 --- X-ray Photoelectron Spectroscopy --- p.40Chapter 2.3.5 --- Thermal Catalysis Study --- p.45Chapter 2.4 --- Conclusion --- p.52Chapter 2.5 --- References --- p.54Chapter Chapter Three: --- Morphology-Controllable Synthesis of Ce02 Nano and Meso-structures --- p.60Chapter 3.1 --- Introduction --- p.60Chapter 3.2 --- Experimental Section --- p.62Chapter 3.2.1 --- Materials and Experimental Conditions --- p.62Chapter 3.2.2 --- Characterization --- p.64Chapter 3.3 --- Results and Discussion --- p.67Chapter 3.3.1 --- SEM and TEM Analysis --- p.67Chapter 3.3.2 --- XRD Analysis --- p.75Chapter 3.3.3 --- N2-Soprtion --- p.78Chapter 3.3.4 --- X-ray Photoelectron Spectroscopy --- p.84Chapter 3.3.5 --- FT-IR Analysis --- p.87Chapter 3.3.6 --- GC-MS Analysis --- p.89Chapter 3.3.7 --- Proposed Formation of Ce02 nanospheres and their transformation to microrods --- p.95Chapter 3.3.8 --- UV absorption spectra and band gap energies --- p.97Chapter 3.3.9 --- Thermal Catalysis Study --- p.100Chapter 3.4 --- Conclusion --- p.103Chapter 3.5 --- References --- p.105Chapter Chapter Four: --- Conclusion --- p.110LIST OF PUBLICATIONS --- p.11