The WGS reaction over Pt-Ni based catalysts was investigated to develop an alternate commercial Cu-Zn/Al₂O₃ catalyst for an on-board gasoline fuel processor. The catalysts were prepared by coprecipitation and incipient wetness methods, and were characterized by N₂ physisorption, CO chemisorption, XRD, TEM and TPR. It was found that 0.2 wt% Pt-40 wt% Ni/CeO₂ catalyst showed higher activity and stability than the commercial LTS catalyst, even though both catalysts were deactivated during the thermal cycling runs. The results suggest that 0.2 wt% Pt-40 wt% Ni/CeO₂ catalyst if an attractive candidate for the alternate Cu-Zn/Al₂O₃ catalyst for automotive applications.