Green Chemistry Approach to Surface Decoration: Trimesic Acid Self-Assembly on HOPG

We have investigated trimesic acid (1,3,5-benzenetricarboxylic acid, TMA) adsorption on highly oriented pyrolytic graphite (HOPG) surface from aqueous medium at room temperature. Both atomic force microscopy and scanning tunneling microscopy were utilized to follow the adsorption dynamics and molecu...

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Bibliographic Details
Published in:Journal of physical chemistry. C 2012-05, Vol.116 (21), p.11519-11525
Main Authors: Korolkov, Vladimir V, Allen, Stephanie, Roberts, Clive J, Tendler, Saul J. B
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Materials science
Physics
Solid surfaces and solid-solid interfaces
Specific materials
Structure and morphology
thickness
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Thin film structure and morphology
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Summary:We have investigated trimesic acid (1,3,5-benzenetricarboxylic acid, TMA) adsorption on highly oriented pyrolytic graphite (HOPG) surface from aqueous medium at room temperature. Both atomic force microscopy and scanning tunneling microscopy were utilized to follow the adsorption dynamics and molecular arrangements. We have proposed an optimized green chemistry approach for fabricating trimesic acid monolayer structures on HOPG. A chicken-wire arrangement for adsorbed molecules with an average pore size of 11 ± 1 Å was established and was observed using both scanning techniques. This structure was found to be stable in the ambient for at least two days.
ISSN:1932-7447
1932-7455
DOI:10.1021/jp212388c