A novel method to produce hydrogen production electrode with low overpotential
- 주제어 (키워드) Alkaline water electrolysis , Hydrogen evolution reaction , Hydrogen production , Superhydrophilic electrode , Micro pillar arrays , Low overpotential; 알칼리 수전해 , 수소 발생 반응 , 수소 생산 , 초친수성 전극 , 마이크로 기둥 배열 , 낮은 과전압
- 발행기관 서강대학교 일반대학원
- 지도교수 윤경병
- 발행년도 2024
- 학위수여년월 2024. 2
- 학위명 박사
- 학과 및 전공 일반대학원 화학과
- 실제URI http://www.dcollection.net/handler/sogang/000000076790
- UCI I804:11029-000000076790
- 본문언어 영어
- 저작권 서강대학교 논문은 저작권 보호를 받습니다.
목차
1. Introduction 3
1.1 Hydrogen energy 3
1.2 Hydrogen production process 4
1.3 Expect hydrogen production route in future 6
2. Water electrolysis 8
2.1 Water electrolysis methods 8
2.2 Alkaline water electrolysis 9
2.2.1 Mechanism of water electrolysis 10
2.2.2 Overpotential of water electrolysis 12
3. Strategy for reducing the cost of hydrogen production 14
3.1 Selection of electrode materials 16
3.2 Effective electrode surface structure 19
4. Experimental 23
4.1 Chemical and materials 23
4.2 Synthesis 25
4.2.1 Preparation of Ti plateTi2Ni alloy sheet electrode on Ti plate 25
4.2.2 Preparation of HPC-Ti2Ni composite paste 25
4.2.3 Preparation of Ti2Ni alloy sheet electrode on Ti plate 25
4.2.4 Preparation of Poly (dimethyl siloxane) (PDMS) mold 26
4.2.5 Preparation of 1.5, 2.5, 3.5 μm height of Ti2Ni alloy pillar array electrode on Ti plate 26
4.2.6 Preparation of Ni-Mo co-electrodeposition of Ti2Ni alloy sheet and pillar array electrode on Ti plate 27
4.3 Characterization 28
4.3.1 Instrumentation 28
4.3.2 Electrochemical measurements 28
5. Results and Discussion 31
5.1 Characterization of Ti-Ti2Ni/Ni2Mo sheet and pillar array electrodes 31
5.2 Catalytic activity of Ti-Ti2Ni/Ni2Mo sheet and pillar array electrodes 42
5.3 ECSA analysis of sheet and pillar array electrodes 64
5.4 Measurement of hydrogen generation amount 68
5.5 Hydrophilicity analysis of surface of pillar array electrode 72
5.6 KPM potential analysis of Ti-Ti2Ni/Ni2Mo sheet and Ti-Ti2Ni/Ni2Mo pillar array electrode 76
5.7 Catalytic activity of Ti-Ti2Ni/Ni2Mo pillar array electrode under 1.0 M KOH electrolyte at room temperature 79
6. Conclusion 85
7. References 87