Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Department of Applied Biology and Chemical Technology | en_US |
| dc.contributor.advisor | Lo, Benedict (ABCT) | en_US |
| dc.creator | Lin, Biyun | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/14420 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | en_US |
| dc.rights | All rights reserved | en_US |
| dc.title | Engineering dual active metal sites on metal-organic frameworks for photocatalytic CO2 reduction | en_US |
| dcterms.abstract | Photocatalytic CO₂ reduction (CO₂RR) presents a promising strategy for addressing the global challenges of CO₂ emissions and renewable energy utilization. Metal-organic frameworks (MOFs) have received extensive research attention for their applications in CO₂RR due to their superior CO₂ capture capabilities, photochemical properties, and structural tunability. In this thesis, we investigated the atomic-level engineering of the dual metal active sites on metal-organic frameworks to optimize photocatalytic CO₂RR performance. We systemically evaluated how dual-atom catalysts (DACs), metal loading density, and bimetallic combinations (electronic structure tuning) influence the selectivity and efficiency of CO₂ conversion, particularly towards high-value multi-carbon (C₂+) products. Combining experimental results with theoretical modeling, we established structure-activity relationships and developed rational design principles for optimizing MOF-based photocatalysts with tailored dual metal site. Advanced characterization techniques, including transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray absorption fine structure (XAFS) analysis, and photoluminescence (PL) were employed to probe the coordination environment and photoinduced charge transfer capability of catalysts. | en_US |
| dcterms.extent | vii, 241 pages : color illustrations | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2026 | en_US |
| dcterms.educationalLevel | Ph.D. | en_US |
| dcterms.educationalLevel | All Doctorate | en_US |
| dcterms.accessRights | open access | en_US |
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