Infiltrated Lanthanum Nickelate Cathodes for Use with BaCe 0.2 Zr 0.7 Y 0.1 O 3 − δ Proton Conducting Electrolytes

  • Babiniec S
  • Ricote S
  • Sullivan N
15Citations
Citations of this article
23Readers
Mendeley users who have this article in their library.

Abstract

Symmetric cells (electrode/electrolyte/electrode) were prepared using BaCe 0.2 Zr 0.7 Y 0.1 O 3 -δ (BCZY27) as a proton conducting electrolyte. Porous BCZY27 backbones were sintered on each side of the electrolyte. Lanthanum nickelate, La 2 NiO 4+δ (LN), was infiltrated into the porous BCZY27 backbone to act as the electrode. Pure phase LN was formed after annealing in air at 850°C for 4 h. Electron microscopy was used to observe LN nano-particles (̃50 nm) infiltrated throughout the backbone. Impedance spectra were recorded at 500, 600, and 700°C with four oxygen partial pressures and four steam partial pressures. Four arcs were observed in the spectra corresponding to: BCZY27 backbone grain-boundary resistance, charge-transfer, oxygen dissociation/adsorption, and gas transport. Total area specific resistances (ASRs) were found to decrease with increasing oxygen partial pressure. Total cathode ASRs of 161.8, 29.3, and 3.7 .cm2 were measured in 3% humidified air at 500, 600, and 700°C respectively. © 2014 The Electrochemical Society.

Cite

CITATION STYLE

APA

Babiniec, S. M., Ricote, S., & Sullivan, N. P. (2014). Infiltrated Lanthanum Nickelate Cathodes for Use with BaCe 0.2 Zr 0.7 Y 0.1 O 3 − δ Proton Conducting Electrolytes. Journal of The Electrochemical Society, 161(6), F717–F723. https://doi.org/10.1149/2.037406jes

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free