2017 : Preparation of Ni–YSZ Cermet through Reduction of NiO–YSZ Ceramic for SOFC Anode

Prof. Dr. Suasmoro


Abstract

Research on the synthesis of Nickel–Yttria Stabilized Zirconia (Ni–YSZ) cermet for Solid Oxide Fuel Cell (SOFC) anode has been performed. The preparation was carried out through the reduction process of the Nickel Oxide–Yttria stabilized Zirconia (NiO–YSZ) ceramic. NiO and YSZ were prepared separately, the NiO powder was prepared by calcination of CH 4 Ni 3 O 7. xH 2 O at 500 C for 3 hours, while YSZ powder was prepared by calcination of 7mol% Y 2 O 3 and 93mol% ZrO 2 mixture at 1350 C for an hour. The NiO–YSZ ceramic preparation was carried outby mixing of YSZ and NiO powder with natural white starch by weight ratio NiO: YSZ: natural white starch= 4: 6: 1 followed by sintering at 1200 C for 4 hours. The completion of reduction process of NiO–YSZ ceramic was performed at 1000 C in flowing Argon (Ar) containing 10% Hydrogen (H 2) up to 4 hours. The characterisations include …