Fabrication of iridium oxide nanoparticles supported on activated carbon powder by flashlight irradiation for oxygen evolutions
- Title
- Fabrication of iridium oxide nanoparticles supported on activated carbon powder by flashlight irradiation for oxygen evolutions
- Other Titles
- 백색광 조사를 통한 산소발생용 산화이리듐 나노입자의 제조에 관한 연구
- Author
- 김동현
- Alternative Author(s)
- 김동현
- Advisor(s)
- 김학성
- Issue Date
- 2016-08
- Publisher
- 한양대학교
- Degree
- Master
- Abstract
- In this study, iridium oxide (IrO2) nanoparticles supported on activated carbon were fabricated for oxygen evolutions using a flashlight irradiation process at room temperature under ambient conditions within a few milliseconds. The fabricated IrO₂nanoparticles were decorated on the activated carbon surface and enlarged to 3.51 nm as average diameter from an initial value of 1.54 nm. The fabricated IrO₂nanoparticles were characterized using high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) analysis, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and linear sweep voltammetry (LSV) for the oxygen evolution reaction.|본 연구에서는 백색광 조사 공정을 통해 상온 대기압 하에서 수 밀리 초 이내에 산소발생용 산화이리듐(IrO₂) 나노입자 촉매를 제조하였다. 활성탄 위에 담지된 이리듐(Ir) 나노입자는 공정 후 IrO2로 산화되며 이 때, 그 직경이 1.54 나노미터(nm)에서 3.51 nm로 증가하였다. 또한, 고분해능-전자투과현미경(high-resolution transmission electron microscopy, HRTEM)과 X-선 회절(X-ray diffraction, XRD) 분석법, X-선 광전자분광법(X-ray photoelectron spectroscopy, XPS), 라만분광법(Raman spectroscopy), 선형주사전위법(linear sweep voltammetry, LSV)의 물리화학 분석을 통해 IrO₂의 생성을 확인하였으며 그것의 어플리케이션을 위한 전기화학적 성능을 확인해보았다.; In this study, iridium oxide (IrO2) nanoparticles supported on activated carbon were fabricated for oxygen evolutions using a flashlight irradiation process at room temperature under ambient conditions within a few milliseconds. The fabricated IrO₂nanoparticles were decorated on the activated carbon surface and enlarged to 3.51 nm as average diameter from an initial value of 1.54 nm. The fabricated IrO₂nanoparticles were characterized using high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) analysis, X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and linear sweep voltammetry (LSV) for the oxygen evolution reaction.
- URI
- https://repository.hanyang.ac.kr/handle/20.500.11754/126027http://hanyang.dcollection.net/common/orgView/200000429290
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > MECHANICAL CONVERGENCE ENGINEERING(융합기계공학과) > Theses (Master)
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