Issue 29, 2012

A multiscale physical model for the transient analysis of PEMwater electrolyzer anodes

Abstract

Polymer electrolyte membrane water electrolyzers (PEMWEs) are electrochemical devices that can be used for the production of hydrogen. In a PEMWE the anode is the most complex electrode to study due to the high overpotential of the oxygen evolution reaction (OER), not widely understood. A physical bottom-up multi-scale transient model describing the operation of a PEMWE anode is proposed here. This model includes a detailed description of the elementary OER kinetics in the anode, a description of the non-equilibrium behavior of the nanoscale catalyst–electrolyte interface, and a microstructural-resolved description of the transport of charges and O2 at the micro and mesoscales along the whole anode. The impact of different catalyst materials on the performance of the PEMWE anode, and a study of sensitivity to the operation conditions are evaluated from numerical simulations and the results are discussed in comparison with experimental data.

Graphical abstract: A multiscale physical model for the transient analysis of PEM water electrolyzer anodes

Article information

Article type
Paper
Submitted
19 Oct 2011
Accepted
24 Apr 2012
First published
24 Apr 2012

Phys. Chem. Chem. Phys., 2012,14, 10215-10224

A multiscale physical model for the transient analysis of PEM water electrolyzer anodes

L. F. L. Oliveira, S. Laref, E. Mayousse, C. Jallut and A. A. Franco, Phys. Chem. Chem. Phys., 2012, 14, 10215 DOI: 10.1039/C2CP23300B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements