A Promising Proton Conducting Electrolyte BaZr_1-xHo_xO_3-δ (0.05 ≤ x ≤ 0.20) Ceramics for Intermediate Temperature Solid Oxide Fuel Cells.

ABSTRACT: In this study, the Ho-substituted BaZrO₃ electrolyte ceramics (BaZr_1-xHo_xO_3-δ, 0.05 ≤ x ≤ 0.20) were synthesized through a low-cost flash pyrolysis process followed by conventional sintering. The effects of Ho-substitution in BaZrO₃ studied in terms of the structural phase relationship, microstructure and electrical conductivity to substantiate augmented total electrical conductivity for intermediate temperature solid oxide fuel cells (IT-SOFCs). The Rietveld refined X-ray diffraction (XRD) patterns revealed that pure phase with [Formula: see text] space group symmetry of cubic crystal system as originated in all samples sintered at 1600 °C for 8 h. The Raman spectroscopic investigations also approved that Ho incorporation in BaZrO

SUBMITTER: Saini DS 

PROVIDER: S-EPMC7044191 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature