| 초록 |
Dry reforming of methane (CH4) and carbon dioxide (CO2) mainly produces hydrogen (H2) and carbon monoxide (CO) that are suitable for solid oxide fuel cell (SOFC) because of its fuel flexibility. Nickel supported on yttria-stabilized zirconia (Ni/YSZ) has widely been used for a SOFC anode. However, this catalyst has known to be deactivated by carbon formation that causes degradation of overall cell performance. In order to improve the stability and performance of Ni/YSZ, carbon deposition should be prevented and reforming activity is necessary to increase. In this study, nano-sized palladium (Pd) is promoted on Ni/YSZ anode using a wet impregnation method, and experimental results between conventional Ni/YSZ and Pd modified Ni/YSZ are compared. The results suggest the promotion effect of Pd on Ni/YSZ on improving the performance of SOFC anode, specifically for internal reforming of CH4 and CO2. |
