DC Field | Value | Language |
---|---|---|
dc.contributor.author | 송영진 | - |
dc.date.accessioned | 2018-10-17T05:16:15Z | - |
dc.date.available | 2018-10-17T05:16:15Z | - |
dc.date.issued | 2018 | - |
dc.identifier.other | OAK-2015-07982 | - |
dc.identifier.uri | http://postech.dcollection.net/common/orgView/200000008343 | ko_KR |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/93108 | - |
dc.description | Master | - |
dc.description.abstract | Large-scale industrial application of solar-driven water splitting has called for the development of oxygen evolution reaction (OER) catalysts that deliver high catalytic ac-tivity and stability. Here we show that an efficient OER catalytic substrate can be devel-oped by roll-to-roll fabrication of electrodeposited Ni-Fe foils, followed by anodization. An amorphous oxyhydroxide layer directly formed on Ni-Fe foils exhibited high catalytic activity towards water oxidation in 1 M KOH solution, which required an overpotential of 0.251 V to reach current density of 10 mA/cm2. The developed catalytic electrode showed the best OER activity among catalysts with film structure. The catalyst also showed pro-longed stability at vigorous gas evolution condition for 36 h. To demonstrate the monolith-ic photo-assisted water splitting device, an amorphous silicon solar cell was fabricated on Ni-Fe catalytic substrate, resulting in lowering OER overpotential under light-illumination. This monolithic device is the first demonstration that the OER catalytic substrates and the solar cells are integrated, and can be easily applied for industrial scale solar-driven water electrolysis. | - |
dc.language | eng | - |
dc.publisher | 포항공과대학교 | - |
dc.title | Sunlight-driven Monolithic Water Splitting Device Using the Anodized Ni-Fe Catalytic Substrate for Oxygen Evolution Reaction | - |
dc.type | Thesis | - |
dc.contributor.college | 일반대학원 신소재공학과 | - |
dc.date.degree | 2018- 2 | - |
dc.type.docType | Thesis | - |
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