在EMD生产过程中Ti基Ti-Mn合金阳极的电化学极化  

Electro Chemi Cal Polarization of Ti Base Ti-Mn Alloy Anodeuaed in EMD Production

作　　者：杨生恕[1] 俞征[1] 

机构地区：[1]贵州大学化学系,贵阳550025

出　　处：《贵州大学学报（自然科学版）》1997年第4期259-264,共6页Journal of Guizhou University:Natural Sciences

基　　金：贵州省自然科学基金

摘　　要：用控制电位稳态极曲化线法研究了Ti基T1－Mn合金阳极分别在25℃、50℃、80℃的40％H2SO4。及1mol／LMnSO4－20％H2SO4溶液中的电化学极化行为；结果表明：Ti-Mn合金阳极的极化白线类似于纯Ti阳极，但临界钝化电流密度ib及维钝态电流密度ib均有所提高，钝化区有明显的缩减，对EMD工业中纯Tii阳极Ti－Mn合金阳极的钝化机理作了讨论；作者认为Ti-Mn合金阳极优于纯Ti阳极．The Electrochemi cal polarization of Ti-base Ti-Mn alloy anode in the 4o% H2S4 and I mdh MnSo4 -2O% H2SO4 (at 25° 50°. 80℃) was studied byanalyzing potenial-controlling stationary polarization.curve. result indicate that the polatization curves of Ti-Mn Ally anode are anadogous to that of pure titanium anode in spite of that critical passivation current density ih for the former in somewhat higher and passivation retaining current density i,, increases sig-nificantly, the passlvation region diminishes, that passivation becomes not so clear. on the basis of eleclrochemicil the passivation mechanism of pure Ti anode and Ti-Mn Alloy anode used in EMD industry was discussed and authors suggest that the Ti-Mn alloy anode is better than the pure Ti anode.

关 键 词：阳极 极化 电解二氧化锰 钛锰合金 电化学极化 

分 类 号：TQ137.12[化学工程—无机化工] O646.51[理学—物理化学]