Infrared reflection absorption spectroscopy study of smectite clay monolayers

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Infrared reflection absorption spectroscopy study of smectite clay monolayers. / Ras, Robin H A; Németh, József; Johnston, Cliff T.; Dékány, Imre; Schoonheydt, Robert A.

julkaisussa: Thin Solid Films, Vuosikerta 466, Nro 1-2, 01.11.2004, s. 291-294.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Harvard

Ras, RHA, Németh, J, Johnston, CT, Dékány, I & Schoonheydt, RA 2004, 'Infrared reflection absorption spectroscopy study of smectite clay monolayers', Thin Solid Films, Vuosikerta. 466, Nro 1-2, Sivut 291-294. https://doi.org/10.1016/j.tsf.2004.02.043

APA

Ras, R. H. A., Németh, J., Johnston, C. T., Dékány, I., & Schoonheydt, R. A. (2004). Infrared reflection absorption spectroscopy study of smectite clay monolayers. Thin Solid Films, 466(1-2), 291-294. https://doi.org/10.1016/j.tsf.2004.02.043

Vancouver

Author

Ras, Robin H A ; Németh, József ; Johnston, Cliff T. ; Dékány, Imre ; Schoonheydt, Robert A. / Infrared reflection absorption spectroscopy study of smectite clay monolayers. Julkaisussa: Thin Solid Films. 2004 ; Vuosikerta 466, Nro 1-2. Sivut 291-294.

Bibtex - Lataa

@article{5aa8cf2f2cc846aab5007e106f1f32ab,
title = "Infrared reflection absorption spectroscopy study of smectite clay monolayers",
abstract = "Infrared reflection absorption spectroscopy (IRRAS), also called infrared external reflection spectroscopy, is used for studying ultrathin hybrid clay films prepared by the Langmuir-Blodgett (LB) method. Infrared spectra of the hybrid films have been obtained at the air-water and air-solid (gold) interface. The presence of a smectite monolayer is observed when cationic surfactants are spread over the surface of a dilute aqueous smectite clay suspension. The in-plane ν(Si-O) band of saponite is observed in IRRAS spectra of saponite clay monolayers at the air-water interface. In contrast, the out-of-plane ν(Si-O) band at 1063 cm-1 is the dominant band in the p-polarized IRRAS spectra of a saponite monolayer deposited on a gold surface. These data correspond to the first-reported infrared spectra of clay minerals showing the enhancement of the out-of-plane vibrational modes and the nearly complete suppression of the in-plane vibrational modes. The results provide direct spectroscopic evidence confirming the orientation of the smectite particles parallel to the substrate.",
keywords = "Blodgett films, Clay, Infrared spectroscopy, Langmuir",
author = "Ras, {Robin H A} and J{\'o}zsef N{\'e}meth and Johnston, {Cliff T.} and Imre D{\'e}k{\'a}ny and Schoonheydt, {Robert A.}",
year = "2004",
month = "11",
day = "1",
doi = "10.1016/j.tsf.2004.02.043",
language = "English",
volume = "466",
pages = "291--294",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier Science",
number = "1-2",

}

RIS - Lataa

TY - JOUR

T1 - Infrared reflection absorption spectroscopy study of smectite clay monolayers

AU - Ras, Robin H A

AU - Németh, József

AU - Johnston, Cliff T.

AU - Dékány, Imre

AU - Schoonheydt, Robert A.

PY - 2004/11/1

Y1 - 2004/11/1

N2 - Infrared reflection absorption spectroscopy (IRRAS), also called infrared external reflection spectroscopy, is used for studying ultrathin hybrid clay films prepared by the Langmuir-Blodgett (LB) method. Infrared spectra of the hybrid films have been obtained at the air-water and air-solid (gold) interface. The presence of a smectite monolayer is observed when cationic surfactants are spread over the surface of a dilute aqueous smectite clay suspension. The in-plane ν(Si-O) band of saponite is observed in IRRAS spectra of saponite clay monolayers at the air-water interface. In contrast, the out-of-plane ν(Si-O) band at 1063 cm-1 is the dominant band in the p-polarized IRRAS spectra of a saponite monolayer deposited on a gold surface. These data correspond to the first-reported infrared spectra of clay minerals showing the enhancement of the out-of-plane vibrational modes and the nearly complete suppression of the in-plane vibrational modes. The results provide direct spectroscopic evidence confirming the orientation of the smectite particles parallel to the substrate.

AB - Infrared reflection absorption spectroscopy (IRRAS), also called infrared external reflection spectroscopy, is used for studying ultrathin hybrid clay films prepared by the Langmuir-Blodgett (LB) method. Infrared spectra of the hybrid films have been obtained at the air-water and air-solid (gold) interface. The presence of a smectite monolayer is observed when cationic surfactants are spread over the surface of a dilute aqueous smectite clay suspension. The in-plane ν(Si-O) band of saponite is observed in IRRAS spectra of saponite clay monolayers at the air-water interface. In contrast, the out-of-plane ν(Si-O) band at 1063 cm-1 is the dominant band in the p-polarized IRRAS spectra of a saponite monolayer deposited on a gold surface. These data correspond to the first-reported infrared spectra of clay minerals showing the enhancement of the out-of-plane vibrational modes and the nearly complete suppression of the in-plane vibrational modes. The results provide direct spectroscopic evidence confirming the orientation of the smectite particles parallel to the substrate.

KW - Blodgett films

KW - Clay

KW - Infrared spectroscopy

KW - Langmuir

UR - http://www.scopus.com/inward/record.url?scp=4544259075&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2004.02.043

DO - 10.1016/j.tsf.2004.02.043

M3 - Article

AN - SCOPUS:4544259075

VL - 466

SP - 291

EP - 294

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

IS - 1-2

ER -

ID: 4849075