School of Chemistry and Chemical Engineering Yangzhou University Yangzhou 225002 ChinaAIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory(ChEM-OIL) Yoshida Sakyo-ku Kyoto 606-8501 Japan;
School of Chemistry and Chemical Engineering Yangzhou University Yangzhou 225002 China;
phosphorus-rich; porous nanocubes; oxygen evolution; oxygen reduction; air cathode catalyst;