Articles - Synthesis and characterization of conjugated core-shell structured YSZ@Ni-GDC anode materials for solid oxide fuel cells
- Chae-Hyun Lima, Byung-Hyun Choib and Ki-Tae Leea,c,*
- a Division of Advanced Materials Engineering, Chonbuk National University, Jeonbuk 561-756, Korea b Energy Materials Center, Korea Institute of Ceramic Engineering and Technology, Seoul 153-801, Korea c Hydrogen and Fuel Cells Research Center, Chonbuk National University, Jeonbuk 561-75, Korea
Abstract
Yttria-stabilized zirconia (YSZ) powders covered by conjugated catalysts of Ni-Ce0.8Gd0.2O19 (GDC) were synthesized by glycine nitrate process. The conjugated core-shell structured YSZ@Ni-GDC anodes exhibited better electrochemical performance than conventionally mixed Ni-YSZ anode. The core-shell structure extends the triple-phase boundary length, and GDC as a co-catalyst provides catalytic activity. The maximum power density of a single cell with the NGY-601030 anode exhibited the highest maximum power density of 324.9 mW/cm(2) at 800 degrees C, which is higher than that of the conventionally mixed Ni-YSZ anode (212.7 mW/cm(2)).
Keywords: Solid oxide fuel cell; Anode; Core-shell; Triple-phase boundary
This Article
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