Abstract
Mechanisms of oxidation and reduction processes were investigated based on two dimensional observation by scanning electron microscopy and three-dimensional reconstruction using focused ion beam-scanning electron microscopy (FIB-SEM). Oxidation process was governed by outward cation diffusion, accompanying isolated pore formation. Reduction started from NiO/pore and NiO/YSZ interfaces with formation of pores inside the reduced Ni phase. The volume expansion during oxidation, pore formations during oxidation and reduction, and sintering during reduction resulted in thin and elongated Ni particle shape. Enhancement of Ni connectivity and densification of anode were promoted during the oxidation process.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
