TY - JOUR
T1 - Reverse micelle synthesis of perovskite oxide nanoparticles
AU - Haider, M. Ali
AU - Capizzi, Aaron J.
AU - Murayama, Mitsuhiro
AU - McIntosh, Steven
N1 - Funding Information:
This work was supported by the National Science Foundation under the Faculty Early Career Development Program (CAREER) grant CBET-0643931 and the University of Virginia Energy Seed Fund . Aaron J. Capizzi was financially supported by the US Air Force Civilian Institution Program . We thank Rosemary Cox-Galhotra for the use of Fig. 9 .
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/8/11
Y1 - 2011/8/11
N2 - La0.6Sr0.4CoxFe1-xO 3-δ (LSCF), La0.6Sr0.4Cu 0.2Fe0.8O3-δ, Ba0.5Sr 0.4Co0.8Fe0.2O3-δ and LaFeO3-δ nanoparticles were synthesized by a reverse micelle procedure. Controlling the size of the micelles through the water:oil phase ratio enabled synthesis of phase pure perovskite particles with average sizes from 14 nm to 50 nm. Small amounts of an impurity phase, likely cobalt oxide, were detected in the XRD spectrum of high cobalt content samples of LSCF (x = 0.8). La0.6Sr0.4Co0.2Fe0.8O 3-δ nanoparticles were utilized to coat the surface of a dense thin-film La0.6Sr0.4Co0.2Fe0.8O 3-δ solid oxide fuel cell cathode. The polarization resistance of the nanoparticle coated electrode, measured at open circuit in air at 973 K, was 20% lower than an equivalent un-coated electrode.
AB - La0.6Sr0.4CoxFe1-xO 3-δ (LSCF), La0.6Sr0.4Cu 0.2Fe0.8O3-δ, Ba0.5Sr 0.4Co0.8Fe0.2O3-δ and LaFeO3-δ nanoparticles were synthesized by a reverse micelle procedure. Controlling the size of the micelles through the water:oil phase ratio enabled synthesis of phase pure perovskite particles with average sizes from 14 nm to 50 nm. Small amounts of an impurity phase, likely cobalt oxide, were detected in the XRD spectrum of high cobalt content samples of LSCF (x = 0.8). La0.6Sr0.4Co0.2Fe0.8O 3-δ nanoparticles were utilized to coat the surface of a dense thin-film La0.6Sr0.4Co0.2Fe0.8O 3-δ solid oxide fuel cell cathode. The polarization resistance of the nanoparticle coated electrode, measured at open circuit in air at 973 K, was 20% lower than an equivalent un-coated electrode.
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U2 - 10.1016/j.ssi.2011.06.013
DO - 10.1016/j.ssi.2011.06.013
M3 - Article
AN - SCOPUS:80051781516
SN - 0167-2738
VL - 196
SP - 65
EP - 72
JO - Solid State Ionics
JF - Solid State Ionics
IS - 1
ER -