CO oxidative coupling to dimethyl oxalate (DMO) is the crucial step in coal to ethylene glycol (CTEG) [1].Palladium (Pd) catalysts have been proved to be effective catalysts for this process [2],and the (111) facet has been identified as the active plane in catalysis [3].However,Pd catalyst is a noble metal catalyst resulting in a great increase in the cost of production,thus how to reduce the usage of Pd is an urgent problem.Bimetallic catalysts have been used in a great number of reactions to reduce usage of noble metal catalysts and keep or improve catalytic performance.