Photooxidation of Methane over Au/SiO₂ catalysts under Mild Conditions
- 주제(키워드) interband transition , charge transfer , partial oxidation , gold , nanoparticle
- 주제(DDC) 621.042
- 발행기관 아주대학교 일반대학원
- 지도교수 Eun Duck Park
- 발행년도 2024
- 학위수여년월 2024. 2
- 학위명 박사
- 학과 및 전공 일반대학원 에너지시스템학과
- 실제URI http://www.dcollection.net/handler/ajou/000000033318
- 본문언어 영어
- 저작권 아주대학교 논문은 저작권에 의해 보호받습니다.
목차
CHAPTER 1. INTRODUCTION 1
1.1. Background 1
1.2. Noble metals induced photocatalysis systems. 9
1.3. Reactive oxygen species (ROS) 26
CHAPTER 2. EXPERIMENTS 29
2.1. Materials 29
2.2. Catalyst preparation procedure 29
2.3. Catalyst characterization 30
2.4. Photoreaction procedure 31
2.5. Kinetic evaluation 32
2.6. Singlet oxygen (¹O₂) detection 33
CHAPTER 3. RESUTLS AND DISCUSSION 35
3.1 Photocatalytic oxidation of CH₄ by Au NPs. 36
3.2. Plasmonic modulation of catalytic activity. 48
3.3. Determination of the time-dependent concentrations for the oxygenated products in CH₄OR 49
3.4. Dependence of CH₄OR kinetics on reactant concentrations. 51
3.5. Singlet oxygen generation induced by photoirradiation of Au NPs. 55
3.6. Metal contents dependence 62
3.7. Support dependence 71
CHAPTER 4. CONCLUSIONS 82
REFERENCES 84