Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 노재근 | - |
dc.date.accessioned | 2021-01-12T06:51:58Z | - |
dc.date.available | 2021-01-12T06:51:58Z | - |
dc.date.issued | 2019-12 | - |
dc.identifier.citation | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, v. 583, article no. 123969 | en_US |
dc.identifier.issn | 0927-7757 | - |
dc.identifier.issn | 1873-4359 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0927775719309598?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/156933 | - |
dc.description.abstract | The surface structure, binding condition, and reductive desorption behavior of self-assembled monolayers (SAMs) of dodecyl thiocyanate (DDTC, C12-SCN) on Au(111) formed via solution and ambient-pressure vapor depositions at 50 degrees C for 24 h were examined by scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV). STM imaging clearly revealed that adsorption of DDTC molecules on Au(111) in a 1 mM ethanol solution led to the formation of short-range-ordered dodecanethiolate (C12S) SAMs with a domain size ranging from several nanometers to 20 nm, whereas the SAMs formed via vapor deposition had long-range-ordered C12S SAMs of size exceeding 60 nm, which were characterized as having a (4 x V3)rect packing structure. XPS measurements showed that the DDTC SAMs formed via vapor deposition on Au (111) contained approximately one-fourth the amount of unbound sulfurs and CN species compared to solution-deposited SAMs. CV measurements also showed that vapor-deposited SAMs had a sharp reductive desorption peak at - 1.028V, whereas solution-deposited SAMs had two broad desorption peaks at - 0.671 and - 0.946 V, implying that vapor-deposited SAMs are more uniform and electrochemically stable. The present results clearly demonstrate that DDTC SAMs on Au(111) with a high degree of structural order, homogeneous interface, and high electrochemical stability can be prepared by ambient-pressure vapor deposition. | en_US |
dc.description.sponsorship | This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education (GN1 NRF-2012R1A6A1029029 GN1 and NRF-2018R1D1A1B07048063). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE BV | en_US |
dc.subject | Self-assembled monolayers | en_US |
dc.subject | Dodecyl thiocyanates | en_US |
dc.subject | Ambient-pressure vapor deposition | en_US |
dc.subject | Scanning tunneling microscopy | en_US |
dc.subject | X-ray photoelectron spectroscopy | en_US |
dc.subject | Cyclic voltammetry | en_US |
dc.title | Formation of long-range-ordered self-assembled monolayers of dodecyl thiocyanates on Au(111) via ambient-pressure vapor deposition | en_US |
dc.type | Article | en_US |
dc.relation.volume | 583 | - |
dc.identifier.doi | 10.1016/j.colsurfa.2019.123969 | - |
dc.relation.page | 1-9 | - |
dc.relation.journal | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | - |
dc.contributor.googleauthor | Choi, Youngsik | - |
dc.contributor.googleauthor | Seong, Sicheon | - |
dc.contributor.googleauthor | Son, Young Ji | - |
dc.contributor.googleauthor | Han, Seulki | - |
dc.contributor.googleauthor | Ito, Eisuke | - |
dc.contributor.googleauthor | Mondarte, Evan Angelo Quimada | - |
dc.contributor.googleauthor | Chang, Ryongsok | - |
dc.contributor.googleauthor | Hayashi, Tomohiro | - |
dc.contributor.googleauthor | Hara, Masahiko | - |
dc.contributor.googleauthor | Noh, Jaegeun | - |
dc.relation.code | 2019003439 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF CHEMISTRY | - |
dc.identifier.pid | jgnoh | - |
dc.identifier.orcid | https://orcid.org/0000-0002-6115-7971 | - |
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