Guangzhou Key Laboratory of Clean Transportation Energy Chemistry;
School of Chemical Engineering and Light Industry;
Guangdong University of Technology;
Guangzhou Higher Education Mega Center;
Guangzhou 510006;
Guangdong;
China;
Building Energy Research Group;
Department of Building and Real Estate;
The Hong Kong Polytechnic University;
Hung Hom;
Kowloon;
Hong Kong 999077;
China;
Solid oxide fuel cell; Cathode; Perovskite; Oxygen reduction reaction; Cobalt-free;