Anode microstructural change upon long-term operation for the cathode-supported tubular-type SOFC

Autor:	Jin-Young Kim, Miyao Motoyasu, Toshiaki Matsui, Toshiya Abe, Koichi Eguchi, Hiroki Muroyama, Megumi Shimazu
Rok vydání:	2012
Předmět:	Materials science Analytical chemistry Sintering General Chemistry Electrolyte Cermet Condensed Matter Physics Cathode law.invention Anode law General Materials Science Solid oxide fuel cell Composite material Electron microscope Triple phase boundary
Zdroj:	Solid State Ionics. 225:50-54
ISSN:	0167-2738
DOI:	10.1016/j.ssi.2012.03.035
Popis:	Cathode-supported tubular-type cells fabricated by TOTO Ltd. degraded gradually during long-term operation, and a dissection analysis of cells revealed a microstructural change in the anode. In this study, then, the direct observation of the degraded anode was conducted to clarify the influence of this structural change on the performance by using a dual-beam focused ion beam–scanning electron microscopy (FIB–SEM). The microstructural parameters of Ni–(Sc2O3)0.10(CeO2)0.01(ZrO2)0.89 cermet anode were quantitatively evaluated. The significant reduction in triple phase boundary (TPB) length was confirmed, accompanied with the migration and sintering of nickel particles especially in the vicinity of anode/electrolyte interface.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eb85994f07d587bfa029c7802eaa7586 https://doi.org/10.1016/j.ssi.2012.03.035 Zobrazit plný text záznamu Full Text from ScienceDirect