质子交换膜燃料电池不锈钢双极板表面Cr<sub>2</sub>AlC涂层的制备与耐蚀性能

质子交换膜燃料电池不锈钢双极板表面Cr₂AlC涂层的制备与耐蚀性能

刘云, 任延杰, 陈荐, 周立波, 邱玮, 黄伟颖, 牛焱

Preparation and Corrosion Resistance of Ternary Layered Compound Cr₂AlC Coating on 304 Stainless Steel for Bipolar Plates of PEMFC

LIU Yun, REN Yanjie, CHEN Jian, ZHOU Libo, QIU Wei, HUANG Weiying, NIU Yan

图8 未沉积及沉积Cr₂AlC涂层的304不锈钢在0.01 mol/L H₂SO₄溶液中的电化学阻抗谱及其等效电路

Fig.8 Nyquist (a, d) and Bode (b, e) plots of 304 stainless steel (a, b) Cr₂AlC coated 304 stainless steel (c, d) after immersion in 0.01 mol/L H₂SO₄ solution for different time, equivalent circuits for fitting impedance diagrams of 304 stainless steel without (c) and with (f) Cr₂AlC coating in 0.01 mol/L H₂SO₄ solution (symbol: experimental data; line: fitted data)