초록 ▼

▷ 고순도 나노입자 촉매 제조 공정 확립
- 촉매 물질 증착 조건 및 나노입자 촉매 제조 공정 확립
- Particle size ≤ 10 nm

▷ 양성자빔 조사를 통한 촉매의 활성도 향상
- Maximum ECSA: 56.5 m2/g (1012 protons/cm2)
- Minimum ECSA: 42.3 m2/g (Non-irradiated)

▷ 양성자빔 조사를 통한 촉매의 내구성 향상
- 촉매 담지량 변화 (TGA): 22.35 wt.% for 1012 protons/cm2, 1

▷ 고순도 나노입자 촉매 제조 공정 확립
- 촉매 물질 증착 조건 및 나노입자 촉매 제조 공정 확립
- Particle size ≤ 10 nm

▷ 양성자빔 조사를 통한 촉매의 활성도 향상
- Maximum ECSA: 56.5 m2/g (1012 protons/cm2)
- Minimum ECSA: 42.3 m2/g (Non-irradiated)

▷ 양성자빔 조사를 통한 촉매의 내구성 향상
- 촉매 담지량 변화 (TGA): 22.35 wt.% for 1012 protons/cm2, 15.56 wt.% for non-irradiated

▷ 양성자빔이 나노입자 촉매의 크기 및 구조에 미치는 영향 분석
- Increment of particle size by irradiating of the proton beams
- Diffusion of Ru atoms in the catalyst to Pt-Ru nano particle surface after proton beam irradiation

▷ 양성자빔이 촉매의 화학적 결합에 미치는 영향 평가
- Ru: charge transfer to Pt + Ru-C chemical bonding
- Pt: charge transfer from Ru
(출처 : 보고서 요약서 3P)

Abstract ▼

1. Purpose
In this research, we purpose to enhance the catalyst activity and durability by proton beam irradiation to the core-shell nanoparticle catalyst grown by atomic layer deposition (ALD). we analyze the effect of electrochemical property and durability of the catalysts caused by proton bea

1. Purpose
In this research, we purpose to enhance the catalyst activity and durability by proton beam irradiation to the core-shell nanoparticle catalyst grown by atomic layer deposition (ALD). we analyze the effect of electrochemical property and durability of the catalysts caused by proton beam irradiation. By analyzing relations with proton beam irradiation and core-shell catalysts, we expected to get possibility of the nucler research facility to apply the nanotechnology.

2. Contents
1st step: Evaluation of catalyst activity of core-shell nanoparticles by proton beam irradiation Active surface of catalyst material is important because catalyst activity depends on the surface area and surface property. To improve catalyst activity, proton beam irradiation is used to core-shell catalysts formed by ALD. It controls the surface properties such as the arrangement or structure of catalyst material will be controlled.
2nd step: Characterization of durability of core-shell nanoparticles by proton beam irradiation Degradation of catalyst nanoparticles performance caused by the reduction of active surface area. According to the evaluation of loading and durability of core-shell catalysts following the variety proton beam irradiation condition, we investigate the effect of proton beam irradiation to catalysts property.
3rd step: Effect of proton beam irradiation to properties and structure of core-shell catalysts In case of core-shell catalysts, structure and properties of catalyst material could be changed by irradiation conditions. Nanoparticle catalysts activity and durability depend on the structure, crystallinity and hydrophobic/hydrophilic. By this analysis, we investigate the relations with proton beam and performance of core-shell catalysts.

3. Expected contribution
In this study, it is possible to preoccupy the original technology and patents of directly applicable to the fuel cell industry by development of proton beam irradiated core-shell catalysts. It advancing the commercialization of environmental friendly fuel cell through the solution of high cost problem of Pt catalysts replaced to non-platinum core-shell catalysts. Consequently nuclear research facility will be expected to be expanded in a variety of research applications of nanotechnology by utilizing this technique over a wide field.
(출처 : SUMMARY 8P)

목차 Contents

• 표지 ... 1
• 제 출 문 ... 2
• 보고서 요약서 ... 3
• 요 약 문 ... 5
• SUMMARY ... 8
• CONTENTS ... 10
• 목차 ... 11
• 제1장 연구개발과제의 개요 ... 12
• 제 1절. 연구개발의 목적 ... 12
• 제 2절. 연구개발대상 기술의 경제적􌝆산업적 중요성 및 연구개발의 필요성 ... 13
• 제2장 국내외 기술개발 현황 ... 15
• 제 1절. 국외 기술 현황 ... 15
• 제 2절. 국내 기술 현황 ... 15
• 제 3절. 국내외 연구수행 기관의 선행연구 내용 ... 15
• 제3장 연구개발수행 내용 및 결과 ... 20
• 제 1절. 연구 내용 및 방법 ... 20
• 제 2절. Results and Discussion ... 22
• 제4장 목표달성도 및 관련분야에의 기여도 ... 32
• 제5장 연구개발결과의 활용계획 ... 33
• 제 1절. 향후 연구 계획 ... 33
• 제 2절. 연구개발 결과의 활용 계획 ... 33
• 제6장 연구개발과정에서 수집한 해외과학기술정보 ... 34
• 7장 참고문헌 ... 35
• 끝페이지 ... 37