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Formation and Properties of Silane Monolayers on Iron and Aluminum Surfaces

Published online by Cambridge University Press:  15 February 2011

Maxim A. Petrunin  and
Andrey P. Nazarov
Maxim A. Petrunin
Affiliation:
Institute of Physical Chemistry, Russian Academy of Sciences, 31 Leninsky prosp., Moscow 117915, Russia
Andrey P. Nazarov
Affiliation:
Institute of Physical Chemistry, Russian Academy of Sciences, 31 Leninsky prosp., Moscow 117915, Russia
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Abstract

The adsorption of ethoxysilanes RSi(OEt)3 on the Fe and Al surfaces from the vapor phase, water and toluene solutions was studied by the piezoquartz nanobalance and ellypsometry. The values of the “landing sites” and the energy of the interaction for different silanes were calculated. The self-assembling silane monolayers with good adhesion to the Al surface (due to the covalent bonds Al–O–Si) was shown to format during adsorption from dilute water solution. The influence of silane monolayers on the H2O adsorption and wetting of the surface was studied. The silane layers have considerably hydrophobic effect and prevent the growth of hydroxide film on the Al. The synthesis of charged silane nanophases was carried out by the addition of the acid (sulfo-, imididiaoetate-) and the basic (amino-) groups into the epoxysilane molecule. The effect of the charge density and the surface potential on the ion adsorption at the interface metal/electrolyte was investigated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 351: Symposium V – Molecularly Designed Ultrafine/Nanostructured Materials , 1994 , 305
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

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