Development of layered anode structures supported over apatite-type solid electrolytes

P. Pandis, T. Kharlamova, V. Sadykov, V. N. Stathopoulos

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференции

4 Цитирования (Scopus)

Аннотация

Apatite-type lanthanum silicates (ATLS) materials have attracted interest in recent literature as solid electrolytes for SOFCs. The fabrication of an ATLS based fuel cell with the state-of-art electrodes (NiO/YSZ as anode and LSCF or LSM as cathode) can show degradation after long operation hours due to Si diffusion mainly towards the anode. In this work, we report a "layer-by-layer anodic electrodes" fabrication by means of spin coating and physical spraying. The overall aim of this work is the successful fabrication of such a layered structure including suitable blocking layers towards the inhibition of Si interdiffusion from the apatite electrolyte to the anode. The results showed that the deposition of 3 layers of LFSO/GDC (3μm), NiO/GDC (4μm) and the final NiO/YSZ anode layer provided a stable half-cell, with no solid state reaction occurring among the electrodes and no Si diffusion observed towards the anode after thermal treatment at 800oC for 120h.

Язык оригиналаанглийский
Номер статьи04001
ЖурналMATEC Web of Conferences
Том41
DOI
СостояниеОпубликовано - 1 фев 2016
Событие1st Mini Conference on Emerging Engineering Applications, MCEEA 2015 - Chalkida, Греция
Продолжительность: 26 ноя 201527 ноя 2015

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