AMnO(3) (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalysts

A series of perovskite-type manganites AMnO(3) (A = Sr, La, Ca and Y) particles were investigated as electrocatalysts for the oxygen reduction reaction. AMnO(3) materials were synthesized by means of an ionic-liquid method, yielding phase pure particles at different temperatures. Depending on the ca...

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Autores principales: Celorrio, V., Calvillo, L., Granozzi, G., Russell, A. E., Fermin, D. J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2018
Materias:
Original Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6413806/
https://www.ncbi.nlm.nih.gov/pubmed/30956502
http://dx.doi.org/10.1007/s11244-018-0886-5
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author Celorrio, V.
Calvillo, L.
Granozzi, G.
Russell, A. E.
Fermin, D. J.
author_facet Celorrio, V.
Calvillo, L.
Granozzi, G.
Russell, A. E.
Fermin, D. J.
author_sort Celorrio, V.
collection PubMed
description A series of perovskite-type manganites AMnO(3) (A = Sr, La, Ca and Y) particles were investigated as electrocatalysts for the oxygen reduction reaction. AMnO(3) materials were synthesized by means of an ionic-liquid method, yielding phase pure particles at different temperatures. Depending on the calcination temperature, particles with mean diameter between 20 and 150 nm were obtained. Bulk versus surface composition and structure are probed by X-ray photoelectron spectroscopy and extended X-ray absorption fine structure. Electrochemical studies were performed on composite carbon-oxide electrodes in alkaline environment. The electrocatalytic activity is discussed in terms of the effective Mn oxidation state, A:Mn particle surface ratio and the Mn–O distances. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s11244-018-0886-5) contains supplementary material, which is available to authorized users.
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spelling pubmed-64138062019-04-03 AMnO(3) (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalysts Celorrio, V. Calvillo, L. Granozzi, G. Russell, A. E. Fermin, D. J. Top Catal Original Paper A series of perovskite-type manganites AMnO(3) (A = Sr, La, Ca and Y) particles were investigated as electrocatalysts for the oxygen reduction reaction. AMnO(3) materials were synthesized by means of an ionic-liquid method, yielding phase pure particles at different temperatures. Depending on the calcination temperature, particles with mean diameter between 20 and 150 nm were obtained. Bulk versus surface composition and structure are probed by X-ray photoelectron spectroscopy and extended X-ray absorption fine structure. Electrochemical studies were performed on composite carbon-oxide electrodes in alkaline environment. The electrocatalytic activity is discussed in terms of the effective Mn oxidation state, A:Mn particle surface ratio and the Mn–O distances. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s11244-018-0886-5) contains supplementary material, which is available to authorized users. Springer US 2018-01-16 2018 /pmc/articles/PMC6413806/ /pubmed/30956502 http://dx.doi.org/10.1007/s11244-018-0886-5 Text en © The Author(s) 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Paper
Celorrio, V.
Calvillo, L.
Granozzi, G.
Russell, A. E.
Fermin, D. J.
AMnO(3) (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalysts
title AMnO(3) (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalysts
title_full AMnO(3) (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalysts
title_fullStr AMnO(3) (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalysts
title_full_unstemmed AMnO(3) (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalysts
title_short AMnO(3) (A = Sr, La, Ca, Y) Perovskite Oxides as Oxygen Reduction Electrocatalysts
title_sort amno(3) (a = sr, la, ca, y) perovskite oxides as oxygen reduction electrocatalysts
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6413806/
https://www.ncbi.nlm.nih.gov/pubmed/30956502
http://dx.doi.org/10.1007/s11244-018-0886-5
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