Possible reasons that catalytic reactivity towards low-temperature CO oxidation has not been found in Au3− cluster

The catalytic circle of CO oxidation over Au3− cluster. The CO oxidation over Au3− cluster proceeded through Au3COO2− resulting in the first CO2 and Au3O− in the first step, and the oxidation of another CO molecule over Au3O− proceeded through the structures I and II (Au3OCO−) along the ER and LH mechanisms. 138