Exploring highly yttrium doped barium zirconate proton conductor electrolytes for application in intermediate temperature solid oxide fuel cells (IT-SOFCs)

Emiliana Fabbri*, Daniele Pergolesi, Silvia Licoccia, Enrico Traversa

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

High temperature proton conductor (HTCP) perovskites are gaining growing attention as electrolyte materials for application in intermediate temperature solid oxide fuel cells (IT-SOFCs). In particular, Y-doped barium zirconate (BZY) electrolyte has been recently the subject of several studies because of its good chemical stability. To investigate the influence of Y concentration on the electrical properties of BZY, BaZrl-x YxO 3-δ (0.3 ≤ x ≤ 0.6) oxides were synthesized using a wet chemistry process to obtain powders with controlled compositional homogeneity and purity at low processing temperatures. The synthesized powders were characterized by X-ray diffraction (XRD) and inductively coupled plasma (ICP) analysis. Dense electrolytes were obtained pressing the calcined powders into cylindrical pellets and then sintering at 1600°C for 12 h. Electrical conductivity of the sintered pellets was measured as a function of the temperature and the Y concentration by electrochemical impedance spectroscopy (EIS) measurements.

Original languageEnglish (US)
Title of host publicationECS Transactions - Solid Oxide Fuel Cells 11 (SOFC-XI)
Pages1745-1752
Number of pages8
Edition2 PART 2
DOIs
StatePublished - Dec 1 2009
Event11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting - Vienna, Austria
Duration: Oct 4 2009Oct 9 2009

Publication series

NameECS Transactions
Number2 PART 2
Volume25
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other11th International Symposium on Solid Oxide Fuel Cells (SOFC-XI)- 216th ECS Meeting
CountryAustria
CityVienna
Period10/4/0910/9/09

ASJC Scopus subject areas

  • Engineering(all)

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