In situ investigation of dissociation and migration phenomena at the Pt/electrolyte interface of an electrochemical cell

Law, YK, Zafeiratos, S, Neophytides, SG, Orfanidi, A, Costa, D, Dintzer, T, Arrigo, R ORCID: https://orcid.org/0000-0002-2877-8733, Knop-Gericke, A, Schlögl, R and Savinova, ER 2015, 'In situ investigation of dissociation and migration phenomena at the Pt/electrolyte interface of an electrochemical cell' , Chemical Science, 6 (10) , pp. 5635-5642.

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview

Abstract

The development of efficient energy conversion systems requires precise engineering of electrochemical interfaces and thus asks for in situ techniques to probe the structure and the composition of the dynamic electrode/electrolyte interfacial region. This work demonstrates the potential of the near ambient pressure X-ray photoelectron spectroscopy (NAPXPS) for in situ studies of processes occurring at the interface between a metal electrode and a liquid electrolyte. By using a model membrane-electrode assembly of a high temperature phosphoric acid-imbibed proton exchange membrane fuel cell, and combining NAPXPS measurements with the density functional theory, it was possible to monitor such fundamental processes as dissociation and migration of the phosphoric acid within a nanostructured Pt electrode under polarization.

Item Type: Article
Schools: Schools > School of Environment and Life Sciences
Journal or Publication Title: Chemical Science
Publisher: Royal Society of Chemistry
Related URLs:
Depositing User: Dr R Arrigo
Date Deposited: 04 Dec 2018 14:31
Last Modified: 04 Dec 2018 16:30
URI: http://usir.salford.ac.uk/id/eprint/49126

Actions (login required)

Edit record (repository staff only) Edit record (repository staff only)

Downloads

Downloads per month over past year