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Development and Application of Classification Method for Electrochemical Oxidant Generating Electrodes : 전기화학적 산화제 생성 전극의 분류법 개발 및 응용
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 윤제용 | - |
| dc.contributor.author | 김지예 | - |
| dc.date.accessioned | 2018-11-12T00:55:22Z | - |
| dc.date.available | 2018-11-12T00:55:22Z | - |
| dc.date.issued | 2018-08 | - |
| dc.identifier.other | 000000152269 | - |
| dc.identifier.uri | https://hdl.handle.net/10371/143061 | - |
| dc.description | 학위논문 (박사)-- 서울대학교 대학원 : 공과대학 화학생물공학부(에너지환경 화학융합기술전공), 2018. 8. 윤제용. | - |
| dc.description.abstract | Electrochemical oxidants generation is widely used process for advanced oxidation process, wastewater treatment, chlor-alkali process, or polymerization. The oxidants such as chlorine (Cl2), hydroxyl radical (•OH), peroxodisulfate (PDS), ozone (O3), and hydrogen peroxide (H2O2) can be generated depends on the electrode materials and electrolysis conditions. Dimensionally stable anode (DSA®), boron doped diamond (BDD), and Sb-SnO2 electrodes are widely used, also self-doped TiO2 nanotube array (self-doped NTA | - |
| dc.description.tableofcontents | 1. Introduction 1
1.1. Backgrounds 1 1.2. Objectives 5 2. Literature Review 7 2.1. Electrochemical Oxidants Generation 7 2.1.1. Electrochemical Chlorine Generation 7 2.1.2. Electrochemical Hydroxyl Radical Generation 21 2.1.3. Electrochemical Persulfate Generation 24 2.2. Classification of Oxidants Generating Electrodes 26 2.2.1. Classification of Active and Inactive Electrodes 26 2.2.2. Differences in between the Inactive Electrodes 28 2.2.3. Classification Method for Surface Adsorbed •OH and Free •OH in Photocatalytic Oxidation Process 31 3. Quantitative Classification Method for Oxidant Generating Electrodes with Respect to the Oxidant Generating Pathways 36 3.1. Introduction 36 3.2. Materials and Methods 38 3.2.1. Preparation of the electrode materials 38 3.2.2. Electrolysis system and chemical analysis method 40 3.2.3. Classification method of oxidants generating electrodes 42 3.3. Results and Discussion 47 3.3.1. Effect of scavenger concentrations 47 3.3.2. Effect of current density 52 3.3.3. Chlorine generation with and without •OH scavenger 58 3.3.4. Relationship between the •OH concentration and Oxygen Evolution Reaction (OER) Overpotential with Electrode Classification 62 3.3.5. Classification and quantification of electrodes 67 3.4. Summary 69 4. Types of Hydroxyl Radical for Electrochemical Peroxodisulfate (PDS) Generation 70 4.1. Introduction 70 4.2. Materials and Methods 71 4.2.1. Reagents 71 4.2.2. Preparation of the electrodes 72 4.2.3. Electrode characterization 74 4.2.4. Electrochemical experiments and analyses 76 4.3. Results and Discussion 79 4.3.1. Electrode characterization 79 4.3.2. PDS Generation on self-doped TNAs and role of •OH 83 4.3.3. Role of •OH for PDS generation on self-doped TNAs 86 4.4. Summary 92 5. RuO2 Coated Blue TiO2 Nanotube Array (Blue TNA-RuO2) as an Effective Anode Material in Electrochemical Chlorine Generation 93 5.1. Introduction 93 5.2. Materials and Methods 96 5.2.1. Reagents 96 5.2.2. Preparation of the electrodes 97 5.2.3. Characterization of the electrodes 98 5.2.4. Electrochemical experiments and analyses 99 5.3. Results and Discussion 101 5.3.1. Electrode characterization 101 5.3.2. Chlorine generation on the blue TNA-RuO2 electrode 104 5.3.3. Direct and indirect pathways of chlorine generation on the blue TNA-RuO2 107 5.4. Summary 116 6. Conclusion 117 References 119 | - |
| dc.language.iso | en | - |
| dc.publisher | 서울대학교 대학원 | - |
| dc.subject.ddc | 660.6 | - |
| dc.title | Development and Application of Classification Method for Electrochemical Oxidant Generating Electrodes | - |
| dc.title.alternative | 전기화학적 산화제 생성 전극의 분류법 개발 및 응용 | - |
| dc.type | Thesis | - |
| dc.contributor.AlternativeAuthor | Jiye Kim | - |
| dc.description.degree | Doctor | - |
| dc.contributor.affiliation | 공과대학 화학생물공학부(에너지환경 화학융합기술전공) | - |
| dc.date.awarded | 2018-08 | - |
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