石墨烯改性Ti/IrTaSnSb-G金属氧化物阳极在低温和低盐NaCl溶液中的电化学性能

王廷勇, 董如意, 许实, 王辉

Electrochemical Properties of Graphene Modified Mixed Metal Oxide Anodes of Ti/IrTaSnSb-G in NaCl Solutions at Low Temperature

WANG Tingyong, DONG Ruyi, XU Shi, WANG Hui

表2 不同烧结温度Ti/IrTaSnSb-G阳极电化学阻抗等效电路拟合值

Table 2 Impedance parameters of the Ti/IrTaSnSb-G anodes with different contents

Graphene content / g·L-1 Rs / Ω·cm2 Qf / Ω-1·cm-2·s-n Rf / Ω·cm2 n1 Qdl / Ω-1·cm-2·s-n Rct / Ω·cm2 n2 0 3.117 1.572×10-2 4.018 0.6978 5.028×10-1 15.905 0.6707 0.2 3.681 5.343×10-2 2.912 0.7193 6.808×10-1 10.301 0.6941 0.4 3.541 1.071×10-1 2.718 0.6774 7.228×10-1 9.905 0.6829 0.6 3.283 2.343×10-1 2.312 0.6959 8.808×10-1 8.301 0.7342 0.8 3.776 1.834×10-1 2.266 0.7171 7.906×10-1 8.728 0.6547 1.0 3.174 1.046×10-1 2.262 0.7258 7.863×10-1 9.442 0.6314