Formation of microcrystalline zirconia using the functionalized interface of a self-assembled monolayer of dithiol on polycrystalline gold at room temperature

Bandyopadhyay, Krisanu ; Vijayamohanan, K. (1998) Formation of microcrystalline zirconia using the functionalized interface of a self-assembled monolayer of dithiol on polycrystalline gold at room temperature Langmuir, 14 (24). pp. 6924-6929. ISSN 0743-7463

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Official URL: http://pubs.acs.org/doi/abs/10.1021/la980305f

Related URL: http://dx.doi.org/10.1021/la980305f

Abstract

A self-assembled monolayer of dithiol, namely 1,4-benzenedimethanethiol (BDT), on a polycrystalline gold surface was effectively used to carry out a two-dimensional reaction between pendent -SH and zirconium ion in solution to produce oriented monoclinic zirconia at room temperature on potentiodynamic cycling. Cyclic voltammetry (CV), X-ray diffraction (XRD), and scanning electron microscopy (SEM) were used to follow the monolayer formation, Zr-attachment on the SAM surface, and the subsequent formation of ZrO2 phase. The XRD analysis shows the growth of the crystal as monoclinic form with a size ranging from 5 to 15 μ m. A tentative reaction scheme and also a mechanism are proposed to understand the role of SAM in changing the size and habit during the crystallization of ZrO2 at room temperature.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:68875
Deposited On:07 Nov 2011 05:06
Last Modified:07 Nov 2011 05:06

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