Journal
MATERIALS RESEARCH BULLETIN
Volume 48, Issue 9, Pages 3274-3277Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2013.05.029
Keywords
oxides; Chemical synthesis; Electrochemical measurements
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Funding
- strategic research council [09-065186]
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Six La1-xSrxMnO3+delta (x = 0, 0.05, 0.15, 0.25, 0.35, 0.50) perovskites were synthesised and characterised by powder XRD and cyclic voltammetry on cone-shaped electrodes in 10% oxygen in argon or 1% nitric oxide in argon at 200, 300 and 400 degrees C. The activity of the manganite based perovskites were highest in the nitric oxide containing atmosphere compared to the activity in the oxygen containing atmosphere at 200 degrees C. At 300 and 400 degrees C the activity in the nitric oxide and oxygen containing atmospheres were similar. The highest ratio between the cathodic current densities in the nitric oxide and oxygen containing atmospheres was found for the La0.95Sr0.05MnO3+delta perovskite at 200 degrees C. (C) 2013 Elsevier Ltd. All rights reserved.
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