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  Department of Energy Science and Engineering Theses Master

Tuning product selectivity during CO₂ hydrogenation on Ru catalyst by metal-support interaction

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dc.contributor.advisor 김찬연 -
dc.contributor.author Sungyeop Kim -
dc.date.accessioned 2026-01-23T10:55:30Z -
dc.date.available 2026-01-23T10:55:30Z -
dc.date.issued 2026 -
dc.identifier.uri https://scholar.dgist.ac.kr/handle/20.500.11750/59678 -
dc.identifier.uri http://dgist.dcollection.net/common/orgView/200000946707 -
dc.description CO2 hydrogenation, Metal-Support Interaction, Ru-based catalyst, Light-assisted -
dc.description.tableofcontents Ⅰ. Introduction 1
1.1 Necessity of CO2 Mitigation and CO2 Conversion Technologies 1
1.2 Reaction Pathways and Thermodynamics of CO2 hydrogenation 4
1.3 Factors that affect the Product Selectivity in CO2 hydrogenation 7
1.3.1 Effect of Metal Properties 7
1.3.2 Support Effect and Metal-Support Interaction 8
1.4 Limitations of Previous Approaches 9
1.5 Strategies for This Work 10
Ⅱ. Experimental 11
2.1 Materials 11
2.2 Catalyst Synthesis 11
2.3 Catalyst Characterization 12
2.4 Catalyst Performance Tests 12
Ⅲ. Results and Discussion 14
3.1 Analysis of the Support Effect on Ru-based catalysts 14
3.1.1 Catalytic Performance over Different Supports 14
3.1.2 Catalyst Characterization over Different Supports 16
3.1.3 Adsorption Strength over Different Supports 21
3.1.4 In Situ Mass Spectrometry Analysis of Product Formation 23
3.2 Modulation of Ru Oxidation State 25
3.2.1 Catalyst Characterization of Ru with Mixed Supports 25
3.2.2 Catalytic Performance with Different Ru Oxidation States 31
3.2.3 Adsorption Strength with Different Ru Oxidation States 33
3.2.4 Light Enhancement of CO2 Conversion 33
3.2.5 Distinct Adsorption Modes of CO and CO2 42
Ⅳ. Conclusion 43
4. Conclusion 43
Reference 45		 -
dc.format.extent 50 -
dc.language eng -
dc.publisher DGIST -
dc.title Tuning product selectivity during CO₂ hydrogenation on Ru catalyst by metal-support interaction -
dc.type Thesis -
dc.identifier.doi 10.22677/THESIS.200000946707 -
dc.description.degree Master -
dc.contributor.department Department of Energy Science and Engineering -
dc.contributor.coadvisor Seunghyeon Kim -
dc.date.awarded 2026-02-01 -
dc.publisher.location Daegu -
dc.description.database dCollection -
dc.citation XT.EM 김54 202602 -
dc.date.accepted 2026-01-19 -
dc.contributor.alternativeDepartment 에너지공학과 -
dc.subject.keyword CO2 hydrogenation, Metal-Support Interaction, Ru-based catalyst, Light-assisted -
dc.contributor.affiliatedAuthor Sungyeop Kim -
dc.contributor.affiliatedAuthor Chanyeon Kim -
dc.contributor.affiliatedAuthor Seunghyeon Kim -
dc.contributor.alternativeName 김성엽 -
dc.contributor.alternativeName Chanyeon Kim -
dc.contributor.alternativeName 김승현 -
dc.rights.embargoReleaseDate 2031-02-28 -
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