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LSM Microelectrodes: Kinetics and Surface Composition
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DOI：10.1149/2.0361510jes.png)
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摘要
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Lanthanum strontium manganite microelectrodes with the nominal composition of (La0.75Sr0.25)(0.95)MnO(3)and a thickness of ca 500 nm was electrochemically characterized in situ at temperatures from 660 to 850 degrees C using a controlled atmosphere high temperature scanning probe microscope. Impedance spectroscopy and cyclic voltammetry were performed on electrodes with diameters of 20-100 mu m in oxygen, air and nitrogen both at open circuit voltage and at anodic and cathodic polarization. In situ conductance mapping, ex situ surface analysis by time-of-flight secondary ion mass spectrometry, and scanning electron microscopy were performed to observe electrical, chemical and structural changes on the microelectrodes. (C) 2015 The Electrochemical Society. All rights reserved.
Keyword:
REDUCTION REACTION-KINETICS
STABILIZED ZIRCONIA
ELECTRODE-KINETICS
PARTIAL-PRESSURE
IN-SITU
POLARIZATION
CATHODES
OXIDE
DEPENDENCE
RESISTANCE
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期刊
IF:
3.3
论文数:
3.3W
被引数:
9.4W
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