Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 5, Issue 24, Pages 4265-4269Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jz502249j
Keywords
-
Categories
Funding
- European Research Council Advanced Grant ENERGYSURF
- EU COST Action [CM1104]
- EPSRC (U.K.)
Ask authors/readers for more resources
As models for probing the interactions between TiO2 surfaces and the dye molecules employed in dye-sensitized solar cells, carboxylic acids are an important class of molecules. In this work, we present a scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED) study of three small carboxylic acids (formic, acetic, and benzoic) that were reacted with the TiO2(110) surface via a dipping procedure. The three molecules display quite different adsorption behavior, illustrating the different interadsorbate interactions that can occur. After exposure to a 10 mM solution, formic acid forms a rather disordered formate overlayer with two distinct binding geometries. Acetic acid forms a well-ordered (2 x 1) acetate overlayer similar to that observed following deposition from vapor. Benzoic acid forms a (2 x 2) overlayer, which is stabilized by intermolecular interactions between the phenyl groups.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available