碳基Pt@Co多层次复合催化阴极海水介质电催化氧还原行为研究

张恒宇, 黄照单, 段体岗, 温青, 李若灿, 吴厚燃, 马力, 张海兵

Electrocatalytic Oxygen Reduction of Carbon-based Hierarchical Pt@Co Composite Catalytic Cathode in Natural Seawater

ZHANG Hengyu, HUANG Zhaodan, DUAN Tigang, WEN Qing, LI Ruocan, WU Houran, MA Li, ZHANG Haibing

图6 Pt@Co-N-C@CC在不同扫速下的LSV、不同催化材料在1600 r/min下的LSV图像、不同催化材料的氧还原起始电位与半波电位、催化材料拟合所得的的Tafel斜率、Pt@Co-N-C@CC的稳定性测试以及Pt@Co-N-C@CC和Pt/C-20%@CC的恒电流极化测试

Fig.6 LSV plots of Pt@Co-N-C@CC at different speeds (a); LSV plots of four kinds of catalytic cathodes at 1600 r/min (b); onset potential and half-wave potential of catalytic cathode (c); Tafel slopes calculated from LSV of four catalytic cathodes (d); stability tests of Pt@Co-N-C@CC (e) and constant current polarization curves of Pt@Co-N-C@CC and Pt/C-20%@CC (f)