83 0

Solvent Effect on the Formation of Octaneselenocyanate Self-Assembled Monolayers on Au(111)

Title
Solvent Effect on the Formation of Octaneselenocyanate Self-Assembled Monolayers on Au(111)
Author
한진욱
Keywords
Solvent Effect; Octaneselenocyanate; Self-Assembled Monolayers; Scanning Tunneling Microscopy; Cyclic Voltammetry
Issue Date
2019-08
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 19, no. 8, Page. 4795-4798
Abstract
Solvent effect on the formation and electrochemical behavior of octaneselenolate (C8Se) self-assembled monolayers (SAMs) on Au(111) derived from the adsorption of octaneselenocyanate (C8Se-CN) molecules in various solvents at 363 K for 1 h was examined by scanning tunneling microscopy (STM) and cyclic voltammetry (CV). STM imaging clearly revealed that the formation and structure of C8Se SAMs were markedly influenced by the polarity of solvent. C8Se SAMs formed in octane were composed of liquid-like disordered phase. In contrast, C8Se SAMs formed in DMF had ordered domains but not a uniform surface, whereas C8Se SAMs formed in ethanol had uniform surface and highly ordered domains with a (2 x 2 root 13) structure. It was found that the structural quality of C8Se SAMs increased with increasing solvent polarity in the order of ethanol ˃ DMF ˃ octane. CV measurements also showed that blocking efficiency of C8Se SAMs for electrode reaction increased with increasing the structural quality of SAMs.
URI
https://www.ingentaconnect.com/content/asp/jnn/2019/00000019/00000008/art00065;jsessionid=vlqur6lmhsz5.x-ic-live-02https://repository.hanyang.ac.kr/handle/20.500.11754/153618
ISSN
1533-4880; 1533-4899
DOI
10.1166/jnn.2019.16706
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE