Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110)

Wechsler D, Fernandez CC, Steinrück HP, Lytken O, Williams FJ (2018)


Publication Status: Published

Publication Type: Journal article

Publication year: 2018

Journal

Publisher: AMER CHEMICAL SOC

Book Volume: 122

Pages Range: 4480-4487

Journal Issue: 8

DOI: 10.1021/acs.jpcc.7b12717

Abstract

Adsorption of 5-monocarboxyphenyl-10,15,20-triphenylporphyrin (MCTPP) to rutile TiO2(110) at room temperature produces molecules on the surface covalently anchored through the carboxylate group, coadsorbed with hydroxyl groups. At elevated temperatures, the free-base porphyrin molecules metalate on the surface, forming what we expect to be titanyl (Ti=O) porphyrin. The reaction is strongly coverage dependent with lower coverages metalating at lower temperatures, possibly caused by flat-lying molecules at low coverages being in closer proximity to the surface. This is in contrast to the behavior when exposed to Zn2+ ions in solution, where the coverage dependency is much less pronounced.

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APA:

Wechsler, D., Fernandez, C.C., Steinrück, H.-P., Lytken, O., & Williams, F.J. (2018). Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110). Journal of Physical Chemistry C, 122(8), 4480-4487. https://dx.doi.org/10.1021/acs.jpcc.7b12717

MLA:

Wechsler, Daniel, et al. "Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110)." Journal of Physical Chemistry C 122.8 (2018): 4480-4487.

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