Synthesis, Characterization and Evaluation of New Metal Oxide Materials for Energy Storage and Conversion
- Title
- Synthesis, Characterization and Evaluation of New Metal Oxide Materials for Energy Storage and Conversion
- Alternative Title
- 에너지 저장 및 변환 소재를 위한 새로운 종류의 금속 산화물 기반 소재의 합성, 물성 분석 및 평가
- Author(s)
- Tong-Hyun Kang
- DGIST Authors
- Tong-Hyun Kang ; Jong-Sung Yu ; Jae Hyun Kim
- Advisor
- 유종성
- Co-Advisor(s)
- Jae Hyun Kim
- Issued Date
- 2022
- Awarded Date
- 2022/02
- Type
- Thesis
- Description
- Conductive metal oxide, Magnesiothermic reduction, Heterostructure, Lithium-ion battery, Water electrolysis
- Table Of Contents
-
Ⅰ. INTRODUCTION 1
Ⅱ. BACKGROUND 4
2.1 Lithium-ion secondary battery (LIB) 4
2.1.1 Fundamental mechanisms of LIB 5
2.1.2 Overview of anode materials for LIB 10
2.1.3 Carbon-based anode materials for LIB 12
2.1.4 Intercalation reaction-based anode materials for LIB 13
2.2 Oxygen evolution reaction (OER) 17
2.2.1 Fundamental Mechanisms of OER 17
2.2.2 Issues with conventional carbon-based for OER 19
2.2.3 Non-precious metal-based catalysts for OER 20
2.3 References 23
Ⅲ. Electrically conductive TiO with in situ grown rutile TiO2 nanothorns for lithium-ion battery anode material 26
3.1 Introduction 26
3.2 Experimental section 29
3.2.1 Preparation of porous TiO (Tx) 29
3.2.2 Synthesis of rutile TiO2 nanothorns grown TiO 29
3.2.3 Characterization 29
3.3 Results and discussion 34
3.3.1 Structural properties of as-prepared Tx and TRy 34
3.3.2 Electrochemical properties of Tx and TRy 48
3.3.3 Density functional theory analysis of electrochemical behavior 70
3.4 Conclusions 75
3.5 References 76
Ⅳ. Novel electrically conductive TiO support for facile Ni(OH)2 growth with iron(III) ions for high active and durable anode catalyst 79
4.1 Introduction 79
4.2 Experimental section 82
4.2.1 Preparation of TiO-MgO and porous TiO 82
4.2.2 Synthesis of Ni(OH)2-TiO (NiT-x) 82
4.2.3 Synthesis of Fe-activated Ni(OH)2-TiO (Fe-y-NiT-x) 83
4.2.4 Synthesis of Fe-activated Ni(OH)2-VC (Fe-y-Ni/VC) 83
4.2.5 Synthesis of RuO2/VC 83
4.2.6 Characterization 84
4.3 Results and discussion 88
4.3.1 Synthesis and characterization of NiT-x and Fe-y-NiT-x 88
4.3.2 Electrocatalytic OER performances of NiT-x 97
4.3.3 Electrocatalytic OER performances of Fe-activated Fe-y-NiT-x 98
4.3.4 Structural changes before and after Accelerated Durability Test (ADT) 104
4.4 Conclusions 112
4.5 References 113
Ⅴ. Conclusions 117
Summary (Korean) 119
- URI
-
http://dgist.dcollection.net/common/orgView/200000595004
http://hdl.handle.net/20.500.11750/16333
- Degree
- Doctor
- Department
- Energy Science & Engineering
- Publisher
- DGIST
- Related Researcher
-
-
Yu, Jong-Sung
- Research Interests Materials chemistry; nanomaterials; electrochemistry; carbon and porous materials; fuel cell; battery; supercapacitor; sensor and photochemical catalyst
-
- Files in This Item:
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- Appears in Collections:
- Department of Energy Science and Engineering Theses Ph.D.
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