Jump to main content
Jump to site search

Issue 5, 2013
Previous Article Next Article

Oxygen electrocatalysis on (001)-oriented manganese perovskite films: Mn valency and charge transfer at the nanoscale

Author affiliations

Abstract

We report that the oxygen reduction reaction (ORR) activities of (001)-oriented manganese perovskite films decrease from 10 to 1 nm by more than an order of magnitude, which can be attributed to the barrier associated with interfacial band bending that impedes electron transfer to the electrolyte, and reduction of Mn3+ due to charge transfer from the Nb:SrTiO3 substrate. Furthermore, we show by substitution in La1−x(Ca,Sr)xMnO3 that Mn3+, not Mn4+, is the active valence state for ORR.

Graphical abstract: Oxygen electrocatalysis on (001)-oriented manganese perovskite films: Mn valency and charge transfer at the nanoscale

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 29 Jan 2013, accepted on 14 Mar 2013 and first published on 18 Mar 2013


Article type: Paper
DOI: 10.1039/C3EE40321A
Citation: Energy Environ. Sci., 2013,6, 1582-1588
  •   Request permissions

    Oxygen electrocatalysis on (001)-oriented manganese perovskite films: Mn valency and charge transfer at the nanoscale

    K. A. Stoerzinger, M. Risch, J. Suntivich, W. M. Lü, J. Zhou, M. D. Biegalski, H. M. Christen, Ariando, T. Venkatesan and Y. Shao-Horn, Energy Environ. Sci., 2013, 6, 1582
    DOI: 10.1039/C3EE40321A

Search articles by author