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  Department of Energy Science and Engineering Theses Ph.D.

Development of Pt-Based Alloy Nanoparticles for Efficient Oxygen Reduction Electrocatalysis in Hydrogen Fuel Cells

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dc.contributor.advisor 김찬연 -
dc.contributor.author Muhammad Irfansyah Maulana -
dc.date.accessioned 2026-01-23T10:54:15Z -
dc.date.available 2026-01-23T10:54:15Z -
dc.date.issued 2026 -
dc.identifier.uri https://scholar.dgist.ac.kr/handle/20.500.11750/59624 -
dc.identifier.uri http://dgist.dcollection.net/common/orgView/200000942270 -
dc.description Electrocatalysis, nanoparticles, oxygen reduction reaction, cathode catalyst, polymer electrolyte membrane fuel cells -
dc.description.tableofcontents Abstract i
List of Contents iii
List of Figures vi
List of Tables x
1. Introduction 1
1.1. Polymer Electrolyte Membrane Fuel Cell (PEMFC) 1
1.2. Main Challenges in PEMFC 2
1.3. Current Solution for PEMFC Electrocatalyst 3
1.4. Recent Progress in PEMFC Electrocatalyst Development 4
1.5. Objective of the Thesis 7
2. Hollow PtCo Alloy Nanostructures 8
2.1. Background 8
2.2. Methods 8
2.2.1. Materials 8
2.2.2. Catalyst Synthesis 9
2.2.3. Characterizations 10
2.2.4. Electrochemical Half-Cell Test 10
2.2.5. Electrochemical Single-Cell Test 11
2.3. Results and Discussion 11
2.3.1. Controllable Composition in the Alloy Design 11
2.3.2. Structural Evolution from Solid to Hollow Alloy Core 13
2.3.3. Electrocatalytic Performance in Half-Cell Test 15
2.3.4. Electrocatalytic Performance in Single-Cell Test 17
2.3.5. Elemental Composition Analysis 19
2.3.6. Surface Electronic Structure Analysis 20
2.4. Conclusion 22
3. Cobalt Nitride-Implanted PtCo Intermetallic Nanocatalysts 23
3.1. Background 23
3.2. Methods 24
3.2.1. Materials 24
3.2.2. Catalyst Synthesis 24
3.2.3. Characterizations 24
3.2.4. Electrochemical Half-Cell Test 25
3.2.5. Electrochemical Single-Cell Test 26
3.2.6. Computational Details 26
3.3. Results and Discussion 27
3.3.1. Rational Design of Electrocatalysts 27
3.3.2. Fuel Cell Evaluation 32
3.3.3. Post-Durability Characterizations 34
3.3.4. Origin of Improved Activity 36
3.3.5. Origin of Enhanced Durability 37
3.4. Conclusion 40
4. Magnetocrystalline Anisotropic PtPdFe Ternary Intermetallic Alloys 42
4.1. Background 42
4.2. Methods 43
4.2.1. Materials 43
4.2.2. Catalyst Synthesis 43
4.2.3. Characterizations 43
4.2.4. Electrochemical Half-Cell Test 44
4.2.5. Electrochemical Single-Cell Test 45
4.2.6. Computational Details 45
4.3. Results and Discussion 46
4.3.1. Composition-Driven Ordering Transformation 46
4.3.2. Magnetic Properties and Structural Characteristics 51
4.3.3. Fuel Cell Performance 55
4.3.4. Theoretical Analysis 58
4.3.5. In Situ Spectroscopy Analysis 60
4.4. Conclusion 61
5. Summary 63
References 64
요약문 73		 -
dc.format.extent 74 -
dc.language eng -
dc.publisher DGIST -
dc.title Development of Pt-Based Alloy Nanoparticles for Efficient Oxygen Reduction Electrocatalysis in Hydrogen Fuel Cells -
dc.type Thesis -
dc.identifier.doi 10.22677/THESIS.200000942270 -
dc.description.degree Doctor -
dc.contributor.department Department of Energy Science and Engineering -
dc.contributor.coadvisor Jong-Sung Yu -
dc.date.awarded 2026-02-01 -
dc.publisher.location Daegu -
dc.description.database dCollection -
dc.citation XT.ED M449 202602 -
dc.date.accepted 2026-01-19 -
dc.contributor.alternativeDepartment 에너지공학과 -
dc.subject.keyword Electrocatalysis, nanoparticles, oxygen reduction reaction, cathode catalyst, polymer electrolyte membrane fuel cells -
dc.contributor.affiliatedAuthor Muhammad Irfansyah Maulana -
dc.contributor.affiliatedAuthor Chanyeon Kim -
dc.contributor.affiliatedAuthor Jong-Sung Yu -
dc.contributor.alternativeName Maulana Muhammad Irfansyah -
dc.contributor.alternativeName Chanyeon Kim -
dc.contributor.alternativeName 유종성 -
dc.rights.embargoReleaseDate 2031-02-28 -
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