Probing the bulk ionic conductivity by thin film hetero-epitaxial engineering

Autor: Daniele Pergolesi, Vladimir Roddatis, Emiliana Fabbri, Christof W Schneider, Thomas Lippert, Enrico Traversa, John A Kilner

Publikováno v: Science and Technology of Advanced Materials, Vol 16, Iss 1 (2015)

Highly textured thin films with small grain boundary regions can be used as model systems to directly measure the bulk conductivity of oxygen ion conducting oxides. Ionic conducting thin films and epitaxial heterostructures are also widely used to pr

Externí odkaz: https://doaj.org/article/91f314a131ec4fb680ed1f2123170718

Double perovskite cathodes for proton-conducting ceramic fuel cells: are they triple mixed ionic electronic conductors?

Autor: Helena Téllez Lozano, John Druce, Samuel J. Cooper, John A. Kilner

Publikováno v: Science and Technology of Advanced Materials, Vol 18, Iss 1, Pp 977-986 (2017)

18O and 2H diffusion has been investigated at a temperature of 300 °C in the double perovskite material PrBaCo2O5+δ (PBCO) in flowing air containing 200 mbar of 2H216O. Secondary ion mass spectrometry (SIMS) depth profiling of exchanged ceramics ha

Externí odkaz: https://doaj.org/article/a926464098024d8db9ad6f73b28a815a

The surface of complex oxides; ion beam based analysis of energy materials

Autor: Roger P. Webb, John A. Kilner, Mathew Niania, M. Sharpe

Publikováno v: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 480:27-32

LEIS depth profiles, obtained by low energy (0.5 keV) Ar+ sputtering, have been analysed for the mixed conducting oxide material La0.6Sr0.4Co0.2Fe0.8O3-δ. Samples have been examined after differing thermal treatments to examine the sub-surface reorg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb479add0854c15692d333056da224ca
https://doi.org/10.1016/j.nimb.2020.07.022

The effect of sub-surface strontium depletion on oxygen diffusion in La0.6Sr0.4Co0.2Fe0.8O3−δ

Autor: John A. Kilner, Andrew Rossall, Mathew A. R. Niania, Jaap Van den Berg

Publikováno v: Journal of Materials Chemistry A. 8:19414-19424

The immediate surface and sub-surface composition of heat treated La0.6Sr0.4Co0.2Fe0.8O3−δ samples was measured by ion beam analysis and compared to oxygen transport properties over the same depth scale. Consistent with the literature, strontium s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bf8fdd55e595defbb7632a213fd3372
https://doi.org/10.1039/d0ta06058e

Correlating surface crystal orientation and gas rinetics in perovskite oxide electrodes

Autor: Ran Gao, Vincent Thoréton, David Pesquera, Ethan J. Crumlin, Slavomír Nemšák, John A. Kilner, Lane W. Martin, Tatsumi Ishihara, Gabriel Velarde, Aileen Luo, Abel Fernandez, Sujit Das, Elif Ertekin, Tanmoy Chakraborty

Publikováno v: Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Digital.CSIC. Repositorio Institucional del CSIC
instname
Advanced materials (Deerfield Beach, Fla.), vol 33, iss 20
Advanced Materials

Solid–gas interactions at electrode surfaces determine the efficiency of solid-oxide fuel cells and electrolyzers. Here, the correlation between surface–gas kinetics and the crystal orientation of perovskite electrodes is studied in the model sys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::791fd3c8eebd65b464d59f34e86c591d
https://ddd.uab.cat/record/241022