高等学校化学学报 ›› 1983, Vol. 4 ›› Issue (6): 673.
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申泮文, 汪根时, 周作祥, 阎德意
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Shen Panwen, Wang Genshi, Zhou Zuoxiang, Yan Deyi
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摘要: 本文提出一种用共沉淀还原扩散法制备钛镍金属互化物的方法,详细讨论了共沉淀还原扩散过程,合成了比表面高、电催化活性良好的钛镍金属互化物。
Abstract: Titanium nickelide intermetallic compounds have been prepared by means of coprecipitation-reduction followed by diffusion processes, in order to obtain the cathodic material with improved hydrogen absorbing character.Titanium-nickel hydroxides are first precipited by NaOH from mixed solution of NiCl2 and TiCl4. After dehydration at 600℃, the mixed hydroxide is reduced by CaH2 to give hydrided TiNi and Ti2Ni.The coprecipitation-reduction and diffution process has been discussed in detail. The lattice parameters of TiNiH1.14 and TiNiH2.56 are 24.85Å and 11.91Å.The temperature-composition dissociation isobars at 1 atm. for the product and potential-time plots of TiNi and Ti2Ni electrodes have been drawn respectively. The discharge capacities were determined as 262.2 mAh/g for TiNiH1.14 and 169.9 mAh/g for Ti2NiH2.56.Since the product has higher specific surface and excellent electro-catalytic activity, electrodes made from the product have much important effect on decreasing the polarization and increasing the cycle life.
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申泮文, 汪根时, 周作祥, 阎德意. 钛镍金属互化物的化学合成及其阴极贮氢作用. 高等学校化学学报, 1983, 4(6): 673.
Shen Panwen, Wang Genshi, Zhou Zuoxiang, Yan Deyi. THE CHEMICAL SYNTHESIS AND THE CATHODIC STORING HYDROGEN EFFECT OF TITANIUM NICKELIDE INTERMETALLIC COMPOUNDS. Chem. J. Chinese Universities, 1983, 4(6): 673.
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http://www.cjcu.jlu.edu.cn/CN/Y1983/V4/I6/673