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Synthesis of La4Ni3O10 Cathode Material (SOFC) by SOL-GEL Process

Published online by Cambridge University Press:  01 February 2011

Rene Fabian Cienfuegos ,
Sugeheidy Carranza ,
Leonardo Chávez ,
Laurie Jouanin ,
Guillaume Marie  and
Moisés Hinojosa
Rene Fabian Cienfuegos
Affiliation:
Fac. Ing. Mec. Eléc. (FIME), San Nicolás de los Garza, Nuevo León, 66451, México Cent. Innov., Invest. Desar. Ing. Tec. (CIIDIT), Apodaca, Nuevo León, 66600, México
Sugeheidy Carranza
Affiliation:
Fac. Ing. Mec. Eléc. (FIME), San Nicolás de los Garza, Nuevo León, 66451, México
Leonardo Chávez
Affiliation:
Fac. Ing. Mec. Eléc. (FIME), San Nicolás de los Garza, Nuevo León, 66451, México Cent. Innov., Invest. Desar. Ing. Tec. (CIIDIT), Apodaca, Nuevo León, 66600, México
Laurie Jouanin
Affiliation:
Université Paris-Sud 11,Orsay, 91405, France.
Guillaume Marie
Affiliation:
IUT A de Lille, Boul. Paul LANGEVIN, BP 179, Villeneuve d'Ascq Cedex, 59653, France
Moisés Hinojosa
Affiliation:
Fac. Ing. Mec. Eléc. (FIME), San Nicolás de los Garza, Nuevo León, 66451, México Cent. Innov., Invest. Desar. Ing. Tec. (CIIDIT), Apodaca, Nuevo León, 66600, México
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Abstract

The goal in this study is to synthesize a Ruddleden-Poper La-Ni phase (La4Ni3O10) using a polymeric route. This material exhibits mixed ionic and electronic conduction (MIEC) properties and can be used as cathode material in the manufacture of Solid Oxide Fuel Cells (SOFC). In addition, an easy and inexpensive synthesis method is presented The polymeric precursors are prepared following the Castillo method using optimized the complexation ratios (HMTA/metallic salts) from 1 to 6. The obtained powders are characterized by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and X-ray diffraction (XRD) in order to determine the processing conditions for formation of the crystalline phase. Experiments performed using complexation ratios of 5 and 6 do not show coagulation. However, the solution prepared using a complexation ratio of 5, is transformed into a gel after few days. Gels produced from solutions prepared with complexation ratios from 2 to 5 were heated at 800, 900 and 1000°C to obtain solid materials. These powders are characterized by TGS, DSC and XRD and it is found that the temperature needed to obtain crystalline La4Ni3O10 was 1000°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1276: Advanced Structural Materials–2010 , 2010 , 27
Copyright
Copyright © Materials Research Society 2010

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