In this paper, the CuCr2O4 spinel catalyst was synthesized by the Pechini method, and its activity was evaluated in catalytic oxidation of CO.CuCr2O4 spinel catalyst was characterized by XRD, BET, H2-TPR, and SEM.This catalyst has a good ability in CO oxidation.The effects of three synthesis variables (EG/citrate, citrate/nitrate ratio, and calcination temperature) and reaction temperature as an o...