| 초록 |
Due to high temperature operation, solid oxide fuel cells (SOFCs) can utilize various types of fuel including natural gas, biogas, light hydrocarbon fuels, etc. The hydrocarbon fuels, however, interacts metal-phase anode catalysts resulting to carbon coking and poisoning. To solve this problem, reduced graphene oxide (rGO) is applied to Ni/YSZ anode and SYT perovskites anode. The microstructure and physical properties of the rGO-added anode were confirmed through XRD, SEM, XPS, IR, and Raman. The rGO phase was stable during cell synthesizing and operating process. Due to the excellent electronic conductivity of rGO, the cell performance improved varying rGO amounts in H2 and CH4 fuels. Carbon deposition reduced in the rGO-Ni/YSZ anode comparing to the Ni/YSZ anode. In the SYTN anode, the cell performance was improved due to the high electronic conductivity of rGO without carbon deposition. |
