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Title: Dimensional analysis of Ni-NiO grains at anode/electrolyte interface for SOFC during redox reaction
Authors: Liang, B
Zhang, S
Zhang, Z
Lu, B
Lu, S
Kendall, M
Ni, M 
Keywords: Ceramic-metal systems
Grain boundaries
Particle size
Issue Date: 2017
Publisher: Wiley-Blackwell
Source: International journal of applied ceramic technology, 2017, v. 14, no. 4, p.534-549 How to cite?
Journal: International journal of applied ceramic technology 
Abstract: Upon reduction and re-oxidization, the interface of a microtubular solid oxide fuel cell (MTSOFC) anode/electrolyte was structurally analyzed using a dual beam focused ion beam/scanning electron microscope (FIB/SEM) and scanning transmission electron microscopy combined with energy dispersive X-ray spectrometer (STEM-EDX). The bulk volume of the dense NiO phase dramatically contracted upon reduction, while the YSZ phases are completely unaffected. No cracks or particle detachment are observed either at the interface of the anode/electrolyte or in the anode backbone. Compared with the initial NiO state (as-prepared), the area of Ni phase contracts by 22.6%-83.7%, depending on the grain size.
ISSN: 1546-542X
EISSN: 1744-7402
DOI: 10.1111/ijac.12667
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