New Methods to Study Thin Organic Films at Electrode Surfaces

• Autorzy: Zawisza I. , Cai X. , Zamlynny V. , Burgess I. , Majewski J. , Szymański G. , Lipkowski J.
• Języki publikacji: EN

Abstrakty

EN

Chronocoulometry, scanning tunneling microscopy (STM), neutron reflectometry (NR) and in situ polarization modulation infrared reflection absorption spectroscopy (PM-IRRAS) have been employed to study the properties of a monolayer of n-octadecanol at a Au(111) electrode surface. Chronocoulometry has been used to determine the charge density at the electrode surface covered by the film of n-octadecanol. The surface pressure of this film was calculated from the charge density data. The film pressure data were used to describe the film properties at the gold solution interface. It has been found that at film pressures larger than 12 mNm-1 the monolayer is in a compressed state and at lower film pressures in a decompressed state. STM imaging, NR and PM-IRRAS have been employed to determine the nature of the two states.We have demonstrated that the properties of a monolayer of n-octadecanol at the metal-solution interface display many similarities to the properties of an equivalent film at the air-solution interface.

Słowa kluczowe

EN

polarization modulation fourier transform infrared reflection absorption spectroscopy; neutron reflectometry; scanning tunneling microscopy; n-octadecanol; Au(111) electrode; differential capacity; chronocoulometry

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2004
• Tom: Vol. 78 / nr 9
• Strony: 1165--1181
• Opis fizyczny: Bibliogr. 30 poz., rys.

Twórcy

autor

Zawisza I.

• Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
• Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw 01-224, Kasprzaka 44/52, Poland

autor

Cai X.

• Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

autor

Zamlynny V.

• Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
• Chemistry Department, Acadia University, Wolfville, Nova Scotia, B4P 2R6 Canada

autor

Burgess I.

• Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

autor

Majewski J.

• MLNSCE, LANSCE-12, Los Alamos National Laboratory, Los Alamos, NM 87545, USA

autor

Szymański G.

• Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

autor

Lipkowski J.

• Department of Chemistry and Biochemistry, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

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