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研究了离子注入工艺与注入元素对工业纯钛在硫酸和氢氧化钠溶液中析氢活性的影响, 测定了工业纯钛及其注入Ni+, W+, Mo+, C+, Nd+等离子后在硫酸溶液和氢氧化钠溶液中的阴极过程动力学参数。 结果表明, 如果选择适当的注入离子和注入工艺, 可以大大提高工业纯钛的析氢活性。 注入的离子对提高工业纯钛析氢活性的影响有W+>Mo+>Ni+>Nd+的规律, 特别是W+和C+的重叠组合注入对提高析氢活性效果最为明显, 在硫酸溶液中其Tafel关系中的常数a降低470mV。

The effects of ion implanted process and elements on the activity of hydrogen evolution of industry titanium were studied. The cathodic dynamic parameters of industry titanium implanted with Ni+, W+, Mo+, C+ and Nd+ in H2SO4 solution and in NaOH solution were obtained. The results show that the activity of hydrogen evolution of industry titanium could be improved greatly by suitable implanted ions and process. Especially, the overlap-implantation of W+ and C+ can greatly improve the catalytic activity of hydrogen evolution, and the constant a of Tafel equation decreases by 470mV in H2SO4 solution. The order of catalysis hydrogen evolution is W+>Mo+>Ni+>Nd+.

参考文献

[1] 方度;蒋兰荪;吴正德.氯碱工艺学[M].北京:化学工业出版社,1990:56-57.
[2] 张季爽;王蓉晖;吕瑶姣 et al.注入镍离子提高钛阴极催化活性的研究[J].化学学报,1991,49(05):442-445.
[3] JIN Jiu-cheng;XIE Zhong;LI Jian-ming et al.Studies of surface composition and electrocatalytic activity of titanium cathodes implanted with Ni+[J].Surface and Coatings Technology,1992,51:35-40.
[4] 吴仲达.离子注入钯的钛电极上硝基苯的电化学还原[J].电化学,1995(01):38.
[5] Orada T .The effects of surface modification of titanium the absorption rate of hydrogen during cathodic polarization[J].Electrochimica Acta,1982,27(09):1273-1280.
[6] McCafferty E;Hubler G K .Electrochemical behavior of palladium-implanted titanium[J].Journal of the Electrochemical Society,1978,125(11):1892-1893.
[7] Wolf G K .Ion implantation and catalysis:Electrochemical applications of ion implantation[J].Nuclear Instruments and Methods in Physics Research,1981,182-183:875-885.
[8] Fokun M N.钛和钛合金在化学工业中的应用[M].上海:上海科学技术出版社,1981:8-10.
[9] Applenton B R;Kelly E J;White C W .Evidence of surface migration and formation of catalytically "inactive" Pt in corrosion studies of Pt+ implanted Ti[J].Nuclear Instruments and Methods in Physics Research,1981,182-183:991-999.
[10] 朱祖芳.有色金属的耐腐蚀性及其应用[M].北京:化学工业出版社,1995:81-82.
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