Personal tools
You are here: Home Highlights Donadio2011 Proton Wires on Metallic Steps
Log in


Forgot your password?
 

Proton Wires on Metallic Steps

— filed under:

Proton Wires via One-Dimensional Water Chains Adsorbed on Metallic Steps

Surface 1

 

R. Scipioni, D. Donadio, L. M. Ghiringhelli and L. Delle Site, J. Chem. Theory Comput., 2011, 7 (9), pp 2681-2684

 

Abstract

 

The process of proton transfer is here analyzed for one-dimensional water chains adsorbed on metallic steps. When the water chain contains a hydronium and a hydroxyl ion, two different mechanisms are possible, depending on the metal substrate. On coinage metals (Ag, Au), recombination is observed through a spontaneous Grotthuss mechanism. On more reactive surfaces (Pd and Pt), the hydronium ion is unstable and releases a proton that adsorbs onto the metal, leaving the negatively charged OH unbalanced. In this case, the negative charge can be transferred along the wire with very low activation barriers.

Document Actions
« May 2017 »
May
MoTuWeThFrSaSu
1234567
891011121314
15161718192021
22232425262728
293031