Pacific Rim Symposium on Surfaces, Coatings and Interfaces (PacSurf 2018)
    Nanomaterials Monday Sessions
       Session NM-MoE

Paper NM-MoE8
Influence of a Tailored Nanoparticle Composite Cathode on Electrochemical Properties of Anode-Supported Solid Oxide Fuel Cells

Monday, December 3, 2018, 8:00 pm, Room Naupaka Salon 5

Session: NanoCatalysis
Presenter: Jong-Eun Hong, Korea Institute of Energy Research (KIER), South Korea
Authors: J.E. Hong, Korea Institute of Energy Research (KIER), South Korea
H.A. Ishfaq, Korea Institute of Energy Research (KIER), South Korea
T.H. Lim, Korea Institute of Energy Research (KIER), South Korea
S.-B. Lee, Korea Institute of Energy Research (KIER),South Korea
K.T. Lee, DGIST, South Korea
R.H. Song, Korea Institute of Energy Research (KIER), South Korea
Correspondent: Click to Email
Application of nanocatalysts to a solid oxide fuel cells cathode is expected to increase triple phase boundary (TPB) density and electrocatalytic reactivity to oxygen reduction reaction, resulting in performance improvement. Thus a conventional Sr- and Fe-doped LaCoO3 (LSCF) based composite cathode was tailored with nanoparticles of a multi doped ceria that has an enhanced ionic conductivity and evaluated for electrochemical properties. In this study, Sm- and Nd-doped ceria (SNDC) nanoparticles were successfully prepared on the composite cathode via an in situ sol–gel process, which was confirmed by field emission scanning electron microscopy analysis. The tailored nanoparticle cathode indicated an increase in power density for a reduction of polarization resistance in anode supported SOFCs. It was attributed that more conductive nanoparticles led to enlarge the specific surface area and promote the reactivity for the cathode reaction.