Liu, Y.
, Gokcen, D.
, Bertocci, U.
and Moffat, T.
(2012),
Self-terminating Growth of Pt by Electrochemical Deposition, Nature Materials
(Accessed June 9, 2023)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Self-terminating Growth of Pt by Electrochemical Deposition
Published
Author(s)
, , ,
Abstract
A self-terminating rapid electrodeposition process for controlled growth of Pt monolayer films from a K_(2)PtCl_(4)-NaCl electrolyte has been developed that is tantamount to wet atomic layer deposition (ALD). Despite the deposition overpotential being in excess of 1 V, Pt deposition is quenched at potentials just negative of proton reduction by an alteration of the double layer structure induced by a saturated surface coverage of underpotential deposited hydrogen, (H_(upd)). The surface is reactivated for Pt deposition by stepping the potential to more positive values where Hupd is oxidized and fresh sites for adsorption of PtCl_(4)^(2-) become available. Periodic pulsing of the potential enables sequential deposition of two dimensional (2-D) Pt layers to fabricate films of desired thickness relevant to a range of advanced technologies.Citation
Nature Materials
Pub Type
Journals
Citation
Created December 6, 2012, Updated October 12, 2021