Stabilization of Polar Step Edges on Calcite (10.4) by the Adsorption of Congo Red

Momper R, Nalbach M, Lichtenstein K, Bechstein R, Kühnle A (2015)
Langmuir 31(26): 7283-7287.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
In this work, we present the stabilization of polar step edges along the [010] direction of calcite (10.4) by the presence of a water-soluble organic molecule, namely Congo Red. While characteristic etch pits are observed on the surface in the absence of the additive, no etch pits can be found in the presence of the additive. Using atomic force microscopy, we can directly follow the restructuring of the surface. Upon addition of Congo Red, the charge-neutral step edges confining the characteristic etch pits vanish, while polar step edges along the [010] direction appear on the surface, which are entirely decorated by well-ordered molecular islands of the additive. After the restructuring has taken place, the surface exclusively exhibits these polar step edges. Our results give direct evidence of the fact that these polar step edges become thermodynamically favored when Congo Red is present.
Erscheinungsjahr
2015
Zeitschriftentitel
Langmuir
Band
31
Ausgabe
26
Seite(n)
7283-7287
ISSN
0743-7463
Page URI
https://pub.uni-bielefeld.de/record/2913788

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Momper R, Nalbach M, Lichtenstein K, Bechstein R, Kühnle A. Stabilization of Polar Step Edges on Calcite (10.4) by the Adsorption of Congo Red. Langmuir. 2015;31(26):7283-7287.
Momper, R., Nalbach, M., Lichtenstein, K., Bechstein, R., & Kühnle, A. (2015). Stabilization of Polar Step Edges on Calcite (10.4) by the Adsorption of Congo Red. Langmuir, 31(26), 7283-7287. doi:10.1021/acs.langmuir.5b01043
Momper, R., Nalbach, M., Lichtenstein, K., Bechstein, R., and Kühnle, A. (2015). Stabilization of Polar Step Edges on Calcite (10.4) by the Adsorption of Congo Red. Langmuir 31, 7283-7287.
Momper, R., et al., 2015. Stabilization of Polar Step Edges on Calcite (10.4) by the Adsorption of Congo Red. Langmuir, 31(26), p 7283-7287.
R. Momper, et al., “Stabilization of Polar Step Edges on Calcite (10.4) by the Adsorption of Congo Red”, Langmuir, vol. 31, 2015, pp. 7283-7287.
Momper, R., Nalbach, M., Lichtenstein, K., Bechstein, R., Kühnle, A.: Stabilization of Polar Step Edges on Calcite (10.4) by the Adsorption of Congo Red. Langmuir. 31, 7283-7287 (2015).
Momper, Rebecca, Nalbach, Martin, Lichtenstein, Karin, Bechstein, Ralf, and Kühnle, Angelika. “Stabilization of Polar Step Edges on Calcite (10.4) by the Adsorption of Congo Red”. Langmuir 31.26 (2015): 7283-7287.
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2019-09-06T09:18:51Z
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