Related Experiment Video
Updated: Jun 29, 2026

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
Published on: August 17, 2019
Bonding mechanism and atomic geometry of an ordered hydroxyl overlayer on Pt(111)
A P Seitsonen1, Y Zhu, K Bedürftig
1Contribution from the Department of Physical Chemistry, Fritz-Haber-Institut der MPG, Faradayweg 4-6, D-14195 Berlin, Germany.
Abstract:
Exposing water to a (2 x 2)-O precovered Pt(111) surface at 100 K and subsequently annealing at 155 K led to the formation of a well-ordered (square root 3 x square root 3)R30 degrees overlayer. The structure of this overlayer is determined by DFT and full dynamical LEED calculations. There are two O containing groups per (square root 3 x square root 3)R30 degrees unit cell and both occupy near on-top positions with a Pt-O bond length of (2.11 +/- 0.04) A. DFT calculations determined the hydrogen positions of the OH species and clearly indicate hydrogen bonds between the neighboring adsorbed OH groups whose interaction is mainly of electrostatic nature. A theoretical comparison with H(2)O shows the hybridization of OH on Pt(111) to be sp(3).
Related Concept Videos
The Aufbau Principle and Hund's Rule
Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
Lattice Centering and Coordination Number
Types of Unit Cells
Imagine taking a large number of identical...
Coordination Number and Geometry
Valence Bond Theory
MO Theory and Covalent Bonding

