Buta-1,3-diene (BD), one of the most important products in the petrochemical industry, is mainly produced through the endothermic steam cracking of naphtha. Recently, the oxidative dehydrogenation (ODH) of n-butene (n-C₄H₈) has emerged as an attractive alternative due to the energy savings it offers. The ODH of n-C₄H₈ is reportedly improved by the addition of V-based complex oxide catalysts. In this study, we added metal oxides to V-based complex oxide catalysts and examined the effects of this addition on the ODH of 1-C₄H₈. The addition of Mg and Co to the V-based complex oxides resulted in the highest BD yield of 22.5% with the lattice oxygen of the catalyst. Moreover, this catalyst also exhibited high ODH activity under an O₂ atmosphere
