dc.contributor.advisor |
Baek, Jong-Beom |
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dc.contributor.author |
Choi, Hyun-Jung |
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dc.date.accessioned |
2024-05-22T15:53:01Z |
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dc.date.available |
2024-05-22T15:53:01Z |
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dc.date.issued |
2010-08 |
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dc.description.abstract |
Multi-wall carbon nanotubes (MWNTs) were functionalized with 4-mercaptobenzoic acid (4-MBAc) in a polyphosphoric acid (PPA)/phosphorous pentoxide (P2O5). The resultant 4-mercaptobenzoyl-functionalized MWNT (MB-MWNT) was used to immobilize gold nanoparticles (GNPs) via the covalent Au-S bonds. The process involved that GNPs were in-situ synthesized in the presence of MB-MWNT and stabilized by trisodium citrate and sodium borohydride (NaBH4) to covalently deposit onto the surface of MB-MWNTs. The morphology of resultant MB-MWNT/GNP composite showed that GNPs are uniformly distributed on the surface of MB-MWNTs. HR-TEM and XPS studies revealed that GNPs showed well-defined crystal structure. Cyclic voltammetries of MB-MWNT and MB-MWNT/GNP composite showed that MB-MWNT/GNP composite displayed profoundly improved electrocatalytic activity over MB-MWNT. |
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dc.description.degree |
Master |
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dc.description |
Graduate School of UNIST (과거) Interdisciplinary School of Green Energy |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/82662 |
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dc.identifier.uri |
http://unist.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000000790357 |
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dc.language |
eng |
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dc.publisher |
Ulsan National Institute of Science and Technology (UNIST) |
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dc.rights.embargoReleaseDate |
9999-12-31 |
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dc.rights.embargoReleaseTerms |
9999-12-31 |
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dc.title |
Synthesis of Thiol Functionalized Multi-walled Carbon Nanotube/Gold Nanoparticle Composites |
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dc.type |
Thesis |
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