Advanced Energy Materials

Cover image for Vol. 5 Issue 14

Editor-in-Chief: Joern Ritterbusch, Deputy Editor: Guangchen Xu

Impact Factor: 16.146

ISI Journal Citation Reports © Ranking: 2014: 3/88 (Energy & Fuels); 4/139 (Chemistry Physical); 4/143 (Physics Applied); 4/67 (Physics Condensed Matter); 5/259 (Materials Science Multidisciplinary)

Online ISSN: 1614-6840

Associated Title(s): Advanced Electronic Materials, Advanced Engineering Materials, Advanced Functional Materials, Advanced Healthcare Materials, Advanced Materials, Advanced Materials Interfaces, Advanced Optical Materials, Advanced Science, Energy Technology, Fuel Cells, Particle & Particle Systems Characterization, Small

1_02i/2011Solid Oxide Fuel Cells: Microstructure of Nanoscaled La0.6Sr0.4CoO3-δ Cathodes for Intermediate-Temperature Solid Oxide Fuel Cells (Adv. Energy Mater. 2/2011)

Nanocrystalline La1-xSrxCoO3-δ (LSC) thin films with a nominal Sr-content of x = 0.4 were deposited on Ce0.9Gd0.1O1.95 electrolyte substrates using a low temperature sol-gel process. The structural and chemical properties of the LSC thin films were studied after thermal treatment, which included a calcination step and a variable, extended annealing time at 700 °C or 800 °C. Transmission electron microscopy combined with selected-area electron diffraction, energy-dispersive X-ray spectrometry, and scanning transmission electron microscopy tomography was applied for the investigation of grain size, porosity, microstructure, and analysis of the local chemical composition and element distribution on the nanoscale. The area specific resistance (ASR) values of the thin film LSC cathodes, which include the lowest ASR value reported so far (ASRchem = 0.023 Ωcm2 at 600 °C) can be interpreted on the basis of the structural and chemical characterization.

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