Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Department of Applied Biology and Chemical Technology | en_US |
| dc.contributor.advisor | Wong, Wai-yeung Raymond (ABCT) | en_US |
| dc.creator | Wang, Qiaolian | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/14708 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | en_US |
| dc.rights | All rights reserved | en_US |
| dc.title | Metallated graphyne-based materials : synthesis, characterization, properties and applications | en_US |
| dcterms.abstract | Graphyne-based two-dimensional (2D) carbon allotropes are attracting much attention due to their extraordinary physical and chemical properties. Among them, metallated graphyne (MGY) is a kind of organometallic material that is woven from organic multi-alkyne monomer and metal ion through the bottom-up approaches, thus achieving various frameworks via monomer or metal chromophore design and integrating the advantages of both metal center and graphyne. The highly developed π-conjugated electronic structure is an excellent feature shared by MGY and graphyne, while the combination of organic ligands and metal atoms makes MGY different from graphyne. Such chemical differences enable MGY to possess unique physical properties, including a variety of components, tunable electronic structures, and high exposure to active sites. Nevertheless, the related research on their synthesis, characterizations, properties, and applications is still in its infancy. Reliable methods and comprehensive characterizations are needed to enrich the MGY family and elucidate the underlying mechanisms between their structures and properties. | en_US |
| dcterms.abstract | To start with, a brief introduction to MGY including synthesis methodology, characterization, properties, and applications was presented in Chapter 1. | en_US |
| dcterms.abstract | In Chapter 2, four kinds of mercury graphyne materials, TEPB-Hg-GY, TEPT-Hg-GY, NH₂-Hg-GY, and F-Hg-GY were designed and synthesized. Their chemical structures, crystal structures, and electronic structures were studied in detail with comprehensive experiments and calculation characterizations, such as NMR, MAIDI-TOF, FTIR, PXRD, UV-Vis, UPS, XPS, TEM, SEM-EDS, and DFT calculations. Moreover, the performance of photocatalytic hydrogen peroxide (H₂O₂) production was studied and the influence of heteroatoms and active groups on their performance and their catalytic mechanism were explored. | en_US |
| dcterms.abstract | In Chapter 3, three kinds of platinum graphyne materials, TEPB-Pt-GY, TEPT-Pt-GY, and F-Pt-GY were reported. Similarly, the synthesis method, structural and performance characterizations were conducted to study their chemical structures, crystal structures, and electronic structures as well as the influence of heteroatoms and active groups on their related structures and properties. What's more, their resistive random access memory (RRAM) performance was investigated. | en_US |
| dcterms.abstract | In Chapter 4, four kinds of nickel graphyne materials, TEPB-Ni-GY, TEPT-Ni-GY, NH₂-Ni-GY, and F-Ni-GY were examined. The synthesis method, structural and performance characterizations were introduced and the influence of heteroatoms and active groups on their chemical structures, crystal structures, and electronic structures were analyzed. Finally, their performance in the application of photocatalytic carbon dioxide reduction was studied. | en_US |
| dcterms.extent | ix, 171 pages : color illustrations | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2024 | en_US |
| dcterms.educationalLevel | Ph.D. | en_US |
| dcterms.educationalLevel | All Doctorate | en_US |
| dcterms.accessRights | open access | en_US |
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