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Volumn 53, Issue 23, 2008, Pages 6759-6767

Electrochemical and infrared spectroscopy studies of 4-mercaptobenzoic acid SAMs on gold surfaces

Author keywords

4 Mercaptobenzoic acid; Acetic acid; Calcium ion binding; Electrochemistry; Fourier transform infrared external reflection spectroscopy; Hydrogen bonding; Ion exchange; Polycrystalline gold; Protonation deprotonation; Self assembled monolayers; Voltammetry

Indexed keywords

ALKALI METALS; ATMOSPHERIC ELECTRICITY; BIOELECTRIC PHENOMENA; CALCIUM; CARBOXYLATION; CARBOXYLIC ACIDS; CATALYST ACTIVITY; DEPOSITS; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; ELECTROLYTES; ELECTRON ENERGY LEVELS; FOURIER TRANSFORM INFRARED SPECTROSCOPY; FOURIER TRANSFORMS; GOLD; GOLD METALLURGY; INFRARED SPECTROSCOPY; MONOLAYERS; ORGANIC ACIDS; PH; PH EFFECTS; POTASSIUM; SELF ASSEMBLED MONOLAYERS; SODIUM; SPECTROSCOPIC ANALYSIS; SULFIDE MINERALS; SULFUR COMPOUNDS; VOLTAMMETRY;

EID: 47249162072     PISSN: 00134686     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.electacta.2007.11.020     Document Type: Article
Times cited : (57)

References (68)
  • 33
    • 47249146815 scopus 로고    scopus 로고
    • The pH of deareated 50 mM NaF is about 8.2-8.5 whereas the measured pH of 1 mM NaF was roughly 1 pH unit lower. Given that the voltammetric peak is very sensitive to pH we had to adjust the pH of 1 mM NaF to 8.3 using dilute NaOH. However, the amount of NaOH added is negligible in terms of the electrolyte's total ionic strength.
    • The pH of deareated 50 mM NaF is about 8.2-8.5 whereas the measured pH of 1 mM NaF was roughly 1 pH unit lower. Given that the voltammetric peak is very sensitive to pH we had to adjust the pH of 1 mM NaF to 8.3 using dilute NaOH. However, the amount of NaOH added is negligible in terms of the electrolyte's total ionic strength.
  • 34
    • 47249116898 scopus 로고    scopus 로고
    • We chose 5 mM ionic strength buffers as a compromise between buffering capacity and minimized sodium ion concentrations. At the pH values studied, a 5 mM NaPB ionic strength buffer has a sodium ion concentration of about 10 mM. This level of cation concentration allowed us to repetitively cycle the potential long enough to obtain CVs whose peak potentials were steady before the peak heights decayed to background levels. We were reluctant to use lower concentrations due to diminished buffering capacities of such solutions.
    • We chose 5 mM ionic strength buffers as a compromise between buffering capacity and minimized sodium ion concentrations. At the pH values studied, a 5 mM NaPB ionic strength buffer has a sodium ion concentration of about 10 mM. This level of cation concentration allowed us to repetitively cycle the potential long enough to obtain CVs whose peak potentials were steady before the peak heights decayed to background levels. We were reluctant to use lower concentrations due to diminished buffering capacities of such solutions.
  • 53
    • 53949123153 scopus 로고    scopus 로고
    • Alkire R.C., Kolb D.M., Lipkowski J., and Ross P.N. (Eds), Wiley-VCH, Weinheim (Chapter 9)
    • Zamlynny V., and Lipkowski J. In: Alkire R.C., Kolb D.M., Lipkowski J., and Ross P.N. (Eds). Advances in Electrochemical Science and Engineering vol. 1 (2006), Wiley-VCH, Weinheim (Chapter 9)
    • (2006) Advances in Electrochemical Science and Engineering , vol.1
    • Zamlynny, V.1    Lipkowski, J.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.