在硫酸铝、草酸钠、硫酸钠、氟化钠及硼酸的混合介质中,用极化曲线法研究了十八烷基三甲基氯化铵(简称1831)在铬电极表面的阻氢作用.采用正交试验,讨论了1831用量、温度、pH和搅拌速率对析氢电位负移量的影响,确定了最佳实验条件为:1831 20mg/L,温度35℃,pH 1.7,搅拌速率0.56mL/s.在该工艺条件下,金属铬沉积的电流效率提高了13.24%.实验证明,1831是氟化物体系中铬电沉积的有效阻氢剂.
参考文献
| [1] | 邓姝皓,龚竹青,易丹青,苏玉长.三价铬还原电沉积机理[J].中南大学学报（自然科学版）,2005(02):213-218. |
| [2] | 张晓顺,姜效军.大电流密度下铬电极析氢行为[J].过程工程学报,2002(03):214-218. |
| [3] | Li BS;Lin A;Gan FX .Preparation and characterization of Cr-P coatings by electrodeposition from trivalent chromium electrolytes using malonic acid as complex[J].Surface & Coatings Technology,2006(6):2578-2586. |
| [4] | V. V. Kuznetsov;E. G. Vinokurov;O. E. Azarko;V. N. Kudryavtsev .Kinetics of cathodic reactions in electrolytes based on trivalent chromium sulfate[J].Электрохимия,1999(6):779-780. |
| [5] | U.S. Mohanty;B.C. Tripathy;P. Singh .Effect of Cr~(3+) on the electrodeposition of nickel from acidic sulfate solutions[J].Minerals Engineering,2002(7):531-537. |
| [6] | 杨余芳,龚竹青,李强国.三价铬的电化学沉积[J].中南大学学报（自然科学版）,2008(01):112-117. |
| [7] | L. N. Vykhodtseva;A. A. Edigaryan;E. N. Lubnin;Yu. M. Polukarov;V. A. Safonov .Composition, Structure, and CorrosionElectrochemical Properties of Chromium Coatings Deposited from Chromium(III) Electrolytes Containing Formic Acid and Its Derivatives[J].Russian journal of electrochemistry,2004(4):387-393. |
| [8] | 马立文,陈白珍,何新快.羧酸盐尿素体系中三价铬电沉积机理[J].物理化学学报,2007(10):1607-1611. |
| [9] | 陶映初.钢铁材料酸洗化学[M].北京:科学出版社,1993:1 16-1167. |
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