College of Materials;
Xiamen University;
Xiamen;
361005;
China;
Fujian Provincial Key Laboratory of Eco-Inductrial Green Technology;
Wuyi University;
Wuyishan;
354300;
China;
Plasma gas-condensation method; Formic acid electrooxidation; Direct formic acid fuel cells(DFAFCs); PdCu nanoclusters catalyst;