The hydrogenolysis of alkanes over supported metal catalysts is an interesting hydrocarbon reaction for industrial applications. The aim of this work was to investigate an enhancement of platinum (Pt) as a second metal for butane hydrogenolysis on cobalt (Co) supported on zeolite NaY. The monometallic Co/NaY and bimetallic Co-Pt/NaY catalysts were prepared by impregnation and co-impregnation method, respectively, and characterized by X-ray diffraction, ammonia adsorption-desorption, X-ray absorption (both XANES and EXAFS). Both catalysts were tested for butane hydrogenolysis in a flow reactor at atmospheric pressure. Because both monometallic and bimetallic catalysts with low Co content were difficult to reduced to active form at 400 ºC in H2 for 3 h, the focused was on 6 and 10 wt% Co loading, all with fixed Pt loading at 1 wt%. The bimetallic catalyst with both Co loadings showed high percentages of reduced Co of 71 % and 75 %, respectively indicating that the addition of Pt assisted Co reduction. The catalytic activities of the bimetallic catalysts were higher than monometallic catalysts. After 30 minutes, the conversion on Co/NaY was 40 % with methane as a product while the conversions on the bimetallic catalysts were almost 100%. The products on the bimetallic catalysts after 30 minutes were methane and ethane while propane was observed after 60 minutes. Thus, the presence of Pt enhanced reducibility and performance of butane hydrogenolysis on Co/NaY.