DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Lee, Hyunjoo | - |
dc.contributor.advisor | 이현주 | - |
dc.contributor.author | Jeon, Sun Seo | - |
dc.date.accessioned | 2022-04-21T19:31:42Z | - |
dc.date.available | 2022-04-21T19:31:42Z | - |
dc.date.issued | 2021 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=949042&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/295389 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2021.2,[iv, 45 p. :] | - |
dc.description.abstract | Among many oxygen evolution reaction catalyst candidates, NiFe layered double hydroxide (LDH) show the highest activity in alkaline medium. Unfortunately, NiFe-LDH is known to have poor electrical conductivity due to the spacings between the cationic layers, limiting its potential as an electrocatalyst. In order to improve electrical conductivity, many researches utilized carbonaceous material as support or substrate for NiFe-LDH. However, our findings point out that use of carbonaceous materials for anode can have detrimental effects on the stability of AEMWE. Instead, a facile monolayer structuring of NiFe-LDH is suggested as a strategy to overcome low conductivity of NiFe-LDH without use of carbonaceous materials. The synthesized monolayer NiFe-LDH showed higher overall water splitting performance compared to conventional bulk NiFe-LDH, achieving high energy conversion efficiency of 72.6% without carbonaceous material and an outstanding stability at current density of 1 A cm$^{-2}$ at 50°C and 80°C with 1 M KOH as electrolyte. This efficiency is one of the highest among AEMWE, suggesting monolayer structuring as an effective way to improve activity and stability at industrially relevant values. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Monolayer NiFe layered double hydroxide▼aAnion exchange membrane | - |
dc.subject | Water electrolysis▼aOxygen evolution reaction | - |
dc.subject | 단층 니켈-철 층상이중수산화물▼a음이온 교환막▼a수전해▼a산소발생반응 | - |
dc.title | Study on monolayer NiFe layered double hydroxide as oxygen evolution reaction electrocatalysts applicable to alkaline anion exchange membrane water electrolysis | - |
dc.title.alternative | 음이온 교환막 수전해에 적용 가능한 산소발생반응 전기화학촉매인 단층 니켈-철 층상이중수산화물에 대한 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :생명화학공학과, | - |
dc.contributor.alternativeauthor | 전순서 | - |
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