Detail View

Understanding the Reconstruction of Active Sites via Catalyst Surface Engineering for Electrochemical CO2 Conversion
Citations

WEB OF SCIENCE

Citations

SCOPUS

Metadata Downloads

DC Field Value Language
dc.contributor.advisor 남대현 -
dc.contributor.author Seolha Lim -
dc.date.accessioned 2025-01-21T01:17:20Z -
dc.date.available 2025-01-21T01:17:20Z -
dc.date.issued 2024 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/57630 -
dc.identifier.uri http://dgist.dcollection.net/common/orgView/200000800915 -
dc.description Electrochemical CO2 reduction reaction, Nanocatalyst, Catalyst reconstruction, Cu active site -
dc.description.tableofcontents Ⅰ. Introduction
1.1 Electrochemical CO2 Reduction Reaction 1
1.2 Classification of Products by Metal Species 5
1.3 Nanoparticles Catalyst 9
1.4 Reconstruction of Cu-based Catalyst 9

Ⅱ. Reconstruction in Bimetallic Catalysts Utilizing Cu2O Nanoparticles
2.1 Introduction 13
2.1.1 Cu-based Bimetallic Catalyst 13
2.1.2 Catalyst Morphology Control via Surface Energy 14
2.1.3 Research Motivation and Strategy 17

2.2 Theoretical Background 18
2.2.1 Synthesis of Facet-controlled Nanoparticles 18
2.2.2 Fabrication of Bimetallic via Galvanic Replacement Reaction 19

2.3 Experimental 22
2.3.1 Synthesis of Bare Cu2O Nanoparticles 22
2.3.2 Fabrication of Au/Cu2O and Ag/Cu2O Nanoparticles 23
2.3.3 Material Characterization 25
2.3.4 Electrode Preparation 26
2.3.5 Evaluation of CO2 Reduction Performance 26

2.4 Results and Discussion 27
2.4.1 Facet-controlled Cu2O Nanoparticles 27
2.4.2 Formation of Secondary Metal Interfaces based on Surface Energy 35
2.4.3 Investigating Factors of Dissolution and Re-deposition 50
2.4.4 Evaluation of CO2 Reduction Performance 56
2.4.5 Real-time Analysis of Reaction Intermediates 59

2.5 Conclusion 62

Ⅲ. Regulation of Reconstruction via Ligand Control
3.1 Introduction 63
3.1.1 Quantum Dot with Ligand Materials 63
3.1.2 Performance Control through Reconstruction Regulation 66
3.1.3 Research Motivation and Strategy 67

3.2 Theoretical Background 69
3.2.1 Changes in Cu state by Reduction Potential 69

3.3 Experimental 71
3.3.1 Material Characterization 71
3.3.2 Electrode Preparation 71

3.4 Results and Discussion 72
3.4.1 Analysis of Catalyst Shape and Phase in Relation to Ligands 72
3.4.2 Reconstruction of Ligands in Quantum Dots 74
3.4.3 Evaluation of CO2 Reduction Performance 82

3.5 Conclusion 84

Ⅳ. Reference
4.1 Introduction 85
4.2 Reconstruction in Bimetallic Catalysts Utilizing Cu2O Nanoparticles 87
4.3 Regulation of Reconstruction via Ligand Control 90

V. Summary 92

요약문 94
-
dc.format.extent 95 -
dc.language eng -
dc.publisher DGIST -
dc.title Understanding the Reconstruction of Active Sites via Catalyst Surface Engineering for Electrochemical CO2 Conversion -
dc.title.alternative 전기화학 CO2 전환 촉매의 표면 제어를 통한 활성점의 재건현상 이해 연구 -
dc.type Thesis -
dc.identifier.doi 10.22677/THESIS.200000800915 -
dc.description.degree Master -
dc.contributor.department Department of Energy Science and Engineering -
dc.identifier.bibliographicCitation Seolha Lim. (2024). Understanding the Reconstruction of Active Sites via Catalyst Surface Engineering for Electrochemical CO2 Conversion. doi: 10.22677/THESIS.200000800915 -
dc.contributor.coadvisor Chanyeon Kim -
dc.date.awarded 2024-08-01 -
dc.publisher.location Daegu -
dc.description.database dCollection -
dc.citation XT.EM임54 202408 -
dc.date.accepted 2024-07-24 -
dc.contributor.alternativeDepartment 에너지공학과 -
dc.subject.keyword Electrochemical CO2 reduction reaction, Nanocatalyst, Catalyst reconstruction, Cu active site -
dc.contributor.affiliatedAuthor Seolha Lim -
dc.contributor.affiliatedAuthor Dae-Hyun Nam -
dc.contributor.affiliatedAuthor Chanyeon Kim -
dc.contributor.alternativeName 임설하 -
dc.contributor.alternativeName Dae-Hyun Nam -
dc.contributor.alternativeName 김찬연 -
dc.rights.embargoReleaseDate 2029-08-31 -
Show Simple Item Record

File Downloads

  • There are no files associated with this item.

공유

qrcode
공유하기

Total Views & Downloads