Synthesis and Characterization of Porous NiO/YSZ Electrode Materials Using Different Pore Formers

James Francis L. Imperial; Rinlee Butch M. Cervera

doi:10.4028/www.scientific.net/MSF.917.83

Paper Titles

Effect of Heat Treatment Condition on the Characteristics of MnO₂ Added-Fe₂TiO₅Ceramics for NTC Thermistors Using Local Iron Oxide
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Effect of S:Fe Molar Ratios on the Direct Formation of Nanocrystalline Pyrite FeS₂ Thin Films by Chemical Spray Pyrolysis under a Low Substrate Temperature (< 300 °C) for Biosensor
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Sintering Temperatures Investigation on the Electrical Characteristics of Fe₂TiO₅/MnO₂ Ceramics-Based NTC Thermistor
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Preparation of Nano-Structured Cathode for Proton-Conducting Fuel Cell by Dispersing Agent-Assisted Sol-Gel Method
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Synthesis and Characterization of Porous NiO/YSZ Electrode Materials Using Different Pore Formers
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Synthesis, Structure and Transport Properties of Novel Chlorine-Doped Perovskite Based on Ba₂CaNbO_5.5
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Preparation of Porous LSM/YSZ Composite with Varying Grain Size of YSZ Precursor Using Solid State Reaction Method
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Study on Industrial-Scale Fabrication of Graphene Nanoplatelets (GNPs) from Natural Graphite
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Effect of SiC Whiskers on the Microstructure and Thermal Conductivity of Carbon Foam
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HomeMaterials Science ForumMaterials Science Forum Vol. 917Synthesis and Characterization of Porous NiO/YSZ...

Synthesis and Characterization of Porous NiO/YSZ Electrode Materials Using Different Pore Formers

Abstract:

Solid oxide electrolysis cell (SOEC) cathodes require a good porosity and a fine microstructure in order to maximize the triple phase boundary (TPB) between electronic conductor, ionic conductor and the gas phase involved in the reaction. Nickel oxide and yttria stabilized zirconia (NiO/YSZ) composite, one of the most desired candidates for SOEC cathode material, is synthesized via the glycine-nitrate combustion process and mixed with corn starch and carbon black pore formers in order to observe how they modify its microstructure and porosity. XRD spectra indicate a distinct cubic phases of both NiO and YSZ. SEM micrographs were able to confirm that the addition of selected pore formers lead to an increase in porosities. Apparent and relative density measurements show that corn starch pore former produces the lowest density among the sintered pellets. EIS measurements revealed that samples with lower density also showed lower total conductivity.