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Volumn 9, Issue 3, 2009, Pages 199-209

Electrochemical oxidative formation of ordered monolayers of thiol molecules on Au(111) surface

Author keywords

Au(111); surface x ray diffraction; Electrochemical formation; Self assembled monolayer; Thiol monolayer

Indexed keywords

GOLD; THIOL DERIVATIVE;

EID: 67649406558     PISSN: 15278999     EISSN: 15280691     Source Type: Journal    
DOI: 10.1002/tcr.200900002     Document Type: Article
Times cited : (8)

References (83)
  • 9
  • 14
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    • Kondo T., Uosaki K. In: Bottom-Up Nanofabrication: Supramolecules, Self-Assemblies, and Organized Films, 4, Chapt. 19; American Scientific Publishers: California, 2009.
    • Kondo T., Uosaki K. In: Bottom-Up Nanofabrication: Supramolecules, Self-Assemblies, and Organized Films, Vol. 4, Chapt. 19; American Scientific Publishers: California, 2009.
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    • Fruböse, C.; Doblhofer, K. J. Chem. Soc.-Faraday Trans. 1995, 91, 1949.
    • Fruböse, C.; Doblhofer, K. J. Chem. Soc.-Faraday Trans. 1995, 91, 1949.
  • 67
    • 67649407921 scopus 로고    scopus 로고
    • A Au(111) facet prepared by Clavilier's method68 from a gold wire was used as a substrate for electrochemical STM (EC-STM) measurements. In situ EC-STM measurements were carried out using a Pico SPM (Molecular Imaging) controlled by a Nanoscope E (Digital Instruments, STM tips were mechanically cut Pt/Ir (80:20) wire (ø, 0.3 mm, Tanaka Precious Metal) insulated with Apiezon wax. STM observations were carried out in a homemade PCTFE cell, which was placed in an Ar filled STM chamber, at room temperature with a bias of 300-850 mV and a tunneling current of 15 pA-5 nA in a constant-current mode. Potentials of the Au(111) electrode and the STM tip were independently controlled by a bipotentiostat (PicoSTAT, Molecular Imaging, and a Ag/AgCl (saturated NaCl) electrode and a Pt wire were used as reference and counter electrodes, respectively. An ethanol solution containing 20 mM KOH, which was deaerated by bubbling Ar for 30 min, was injected into the cell while the Au11
    • 68 from a gold wire was used as a substrate for electrochemical STM (EC-STM) measurements. In situ EC-STM measurements were carried out using a Pico SPM (Molecular Imaging) controlled by a Nanoscope E (Digital Instruments). STM tips were mechanically cut Pt/Ir (80:20) wire (ø = 0.3 mm, Tanaka Precious Metal) insulated with Apiezon wax. STM observations were carried out in a homemade PCTFE cell, which was placed in an Ar filled STM chamber, at room temperature with a bias of 300-850 mV and a tunneling current of 15 pA-5 nA in a constant-current mode. Potentials of the Au(111) electrode and the STM tip were independently controlled by a bipotentiostat (PicoSTAT, Molecular Imaging), and a Ag/AgCl (saturated NaCl) electrode and a Pt wire were used as reference and counter electrodes, respectively. An ethanol solution containing 20 mM KOH, which was deaerated by bubbling Ar for 30 min, was injected into the cell while the Au(111) electrode was held at -450 mV.
  • 70
    • 67649387180 scopus 로고    scopus 로고
    • 71 was not expected.
    • 71 was not expected.
  • 71
    • 67649410741 scopus 로고    scopus 로고
    • ,
    • 72,73 and the pH of 0.1 M KOH ethanol solution is ca. 13, the thiol molecules are expected to be fully ionized and to exist as thiolate ion.
    • Since the pKa of thiol is ca , vol.10 , pp. 72-73
  • 73
    • 0003669158 scopus 로고
    • Ionisation Constants of Organic Compounds in Aqueous Solutions
    • Pergamon Press: Oxford
    • Serjeant, E. P.; Dempsey, B. Ionisation Constants of Organic Compounds in Aqueous Solutions; IUPAC Chemical Data Series, No. 23; Pergamon Press: Oxford, 1983.
    • (1983) IUPAC Chemical Data Series , vol.23
    • Serjeant, E.P.1    Dempsey, B.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.