solid oxide fuel cell

A new design of the interconnect for tubular solid oxide fuel cells was presented. The functions of electrical connection and mechanical/gas distribution were separated in this interconnect. The electrical connection of the elements was provided by a separate metal wire laid around the frame. The paste composition and parameters for inkjet 3D printing, as well as the sintering regime, were optimized, enabling the production of dense samples with high microhardness.

In this work, a microtubular cell with an LNO-SDC-based air electrode fabricated using the phase inversion method was investigated. The microstructure of a single cell was characterized using scanning electron microscopy. The electrochemical parameters were measured in the mode of co-electrolysis of water steam and carbon dioxide. The obtained results indicated the high efficiency of the microtubular cell.

Copper lanthanum titanate La2/3Cu3Ti4−xFexO12−δ x = 0–1 was doped with Fe3+ cations. The diagram of the dependence of the tolerance factor on the relative electronegativity of cations for all studied compositions was represented. It was shown that all the compositions exist in the region of existence of distorted perovskite. X-ray diffraction and X-ray phase analysis methods established the region of existence of solid solutions of La2/3Cu3Ti4−xFexO12−δ obtained by ceramic technology, which was 0 ⩽ x ⩽ 0.4.

УДК 539.23 + 544.6.018

DOI:  https://doi.org/10.18500/1608-4039-2016-16-4-196-206

This paper reviews the methods used nowadays for solid-oxide electrolyte film deposition. Problems and perspectives in the field of development of solid oxide fuel cells with film electrolyte are discussed.