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Proton conducting ceramics based on the Ba3Ca1.18Nb1.52R0.3O9-´ (where r = Y, SM, GD) systems: preparation and physical properties

Grant number: 14/12901-5
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): November 01, 2014
Effective date (End): October 31, 2015
Field of knowledge:Engineering - Materials and Metallurgical Engineering
Principal Investigator:Antônio Carlos Hernandes
Grantee:Lucas Henrique Francisco
Home Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:13/07296-2 - CDMF - Center for the Development of Functional Materials, AP.CEPID

Abstract

In the present work we propose an experimental investigation on the preparation and physical properties of the Ba3Ca1.18Nb1.52R0.3O9-´ (where R = Y, Sm, Gd) ceramics. Similar systems have been studied during last decades owing to their huge potential as electrolyte membranes for proton conducting solid oxide fuel cells (PC-SOFC). High proton conductivity and improved chemical stability are important parameters for applications in energy conversion and storage. In our study, we intend to evaluate the role of the substituting ions in the structural, morphological, compositional and electrical properties of the Ba3Ca1.18Nb1.52R0.3O9-´ ceramics. This project entitled Proton conducting ceramics based on the Ba3Ca1.18Nb1.52R0.3O9-´ (where R = Y, Sm, Gd) systems: preparation and physical properties is aimed to introduce the undergraduate student to the synthesis and characterization of the advanced ceramics.