DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Park, Chan Beum | - |
dc.contributor.advisor | 박찬범 | - |
dc.contributor.author | Kim, Changhyun | - |
dc.date.accessioned | 2023-06-23T19:32:10Z | - |
dc.date.available | 2023-06-23T19:32:10Z | - |
dc.date.issued | 2023 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1033093&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/308962 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 신소재공학과, 2023.2,[ix, 64 p. :] | - |
dc.description.abstract | Solar-driven $N_2$ fixation offers a green alternative to the highly energy intensive Haber-Bosch process that releases more than 300 million metric tons of $CO_2$ annually to form $NH_3$. However, current $N_2$-reducing photoelectrochemical (PEC) studies have not elucidated how the oxidation reaction affects the $N_2$ reduction reaction (NRR) and how to the corresponding anodic half reactions. Herein, this thesis reports a bias-free PEC platform for simultaneous $N_2$ reduction to $NH_3$ and $H_2O$ oxidation to $O_2$ and/or $H_2O_2$. Mo-doped bismuth vanadate-based photoanodes extract electrons from $H_2O$ and transfer them to the photoelectrocatalytic NRR site. A silicon photovoltaic-wired hematite photocathode receives the electrons to drive the NRR, which is influenced by conditions of the $H_2O$ oxidation reaction site. Furthermore, the integration of PEC $N_2$ reduction with $H_2O_2$-dependent biocatalytic oxyfunctionalization achieves simultaneous synthesis of valuable fuels and compounds on both electrodes. This thesis presents the first example of a PEC NRR platform coupled with $H_2O$ oxidation and $H_2O_2$-dependent oxygenation for unbiased chemical synthesis using $N_2$, $H_2O$, and sunlight. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Photoelectrocatalysis▼aNitrogen fixation▼aWater oxidation▼aC-H oxyfunctionalization▼aUnspecific peroxygenase▼aBiocatalysis▼aSolar fuel | - |
dc.subject | 광전기화학▼a질소 고정▼a물 산화▼a탄화수소 관능화▼a퍼옥시기나아제 효소 | - |
dc.title | Photoelectrocatalytic $N_2$ fixation and C-H oxyfunctionalization driven by $H_2O$ oxidation | - |
dc.title.alternative | 광전기화학적 물 산화 기반 질소 고정 및 탄화수소 관능화 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :신소재공학과, | - |
dc.contributor.alternativeauthor | 김창현 | - |
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