Articles
  • Characterization of BaZr0.8Y0.2O3-δ proton-conducting electrolyte material synthesized by pulsed-current activated sintering
  • Jong-Yeol Yooa, In-Jin Shona,b, Byung-Hyun Choic and Ki-Tae Leea,b,*
  • aDepartment of Hydrogen and Fuel Cells Engineering, Specialized Graduate School, Chonbuk National University, Jeonbuk, 560-756 Korea bDivision of Advanced Materials Engineering, Chonbuk National University, Jeonbuk, 560-756 Korea cOptic and Electronic Ceramics Division, Korea Institute of Ceramic Engineering and Technology, Seoul, 153-801 Korea
Abstract
BaZr0.8Y0.2O3-δ (BZY20) proton conductors have been investigated as electrolyte materials for intermediate temperature solid oxide fuel cells. The BZY20 powders were synthesized by both a citrate/ethylene-diamine-tetraacetic acid complexing method and a glycine nitrate process, and then sintered by pulsed-current activated sintering. Densification by pulsed-current activated sintering occurred even at 1300 oC within 5 minutes, obtaining a relative density and crystallite size of the sintered body of 95% and 190 nm, respectively.

Keywords: Solid oxide fuel cell, Electrolyte, Proton conductor, BZY, Pulsed-current activated sintering

This Article

  • 2011; 12(4): 382-386

    Published on Aug 31, 2011