Title

Selective Ethanol Production via Local CO₂ Concentration Modulation by MOF-derived Gas Control Layer in CO₂ Electrolysis

Alternative Title

MOF 유래 가스 제어층으로 국소 CO₂ 농도를 제어하여 CO₂ 전기분해에서 선택적인 에탄올 생산

DGIST Authors

Geon-Woo Kim ; Jongmin Choi ; Dae-Hyun Nam

Advisor

최종민

Co-Advisor(s)

Dae-Hyun Nam

Issued Date

2026

Awarded Date

2026-02-01

Type

Thesis

Description

Local CO₂ concentration, CO₂ Activity, Gas Diffusion Electrode (GDE), CO₂ electrolysis

Table Of Contents

Ⅰ. Introduction 1
1.1 The Necessity of Electrochemical CO₂ Reduction Reaction 1
1.2 The Importance and Challenges of Ethanol in CO₂ Electrolysis 4
1.3 Limitation of CO₂ Mass Transport 6
1.4 Research Motivation and Strategy 8

Ⅱ. Experimental 13
2.1 Synthesis of Cu-BTC (s), Cu-HHTP, and Cu-BDC 13
2.2 Synthesis of Cu-BTC (h), Mg-BTC, Cu/Mg-BTC, and CuMg-BTC 15
2.3 Fabrication of Cu/C GCL, Mg/C GCL, CuMg₁.₇/GCL, and CuMg₂.₉/C GCL 16
2.4 Fabrication of Carbon GCL 16
2.5 Electrode Preparation 17
2.6 Material Characterization 18
2.7 Electrochemical CO₂RR Performance Analysis 19

Ⅲ. Results and Discussion 21
3.1 Introduction of GCL on Cu/PTFE to Modulate the Microenvironment 21
3.2 Tailoring organic linkers to boost CO₂RR activity of Cu/C GCLs 33
3.3 Thermodynamic Design Strategy for Microenvironment Control in CO₂RR 37
3.4 Engineering Cu-Mg Heterometallic GCLs for Enhance CO₂ Adsorption 48
3.5 Electrochemical CO₂RR GCL-incorporated Cu/PTFE Electrodes 64
3.6 In situ Analysis of GCL-incorporated Electrodes during CO₂RR 79

Ⅳ. Conclusion 83

Ⅴ. Reference 85

요약문 88

URI

https://scholar.dgist.ac.kr/handle/20.500.11750/59675
http://dgist.dcollection.net/common/orgView/200000949586

DOI

10.22677/THESIS.200000949586

Degree

Master

Department

Department of Energy Science and Engineering

Publisher

DGIST

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