[1]State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China;
[2]Center for Mesoscience Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China;
[3]University of Chinese Academy of Sciences No.19A Yuquan Road Beijing 100049 China;
[4]Zhongke Langfang Institute of Process Engineering Fenghua Road No 1 Langfang Economic&Technical Development Zone Hebei 065001 China;
Copper–palladium; Multicube; Formic acid oxidation; Oxygen reduction; CO2 reduction;