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以La、Ni和Al的氧化物为原料,在高温和氢的气氛下用CSH2还原制得LaNi(4.15)Al(0.85)贮氢合金。X射线衍射证实此法制得的LaNi(4.15)Al(0.85)的体相结构与熔炼法制备的相同。XPS能谱数据显示在LaNi(4.15)Al(0.85)原始表面上有-层活性镍。通过吸氢性能研究,得出11℃时氢的吸附容量为0.108L/g,离解平衡压为6×104Pa。
A LaNi (4.15) Al (0.85) hydrogen storage alloy was prepared by reduction of CSH2 under high temperature and hydrogen atmosphere using La, Ni and Al oxides as raw materials. X-ray diffraction confirmed the bulk structure of LaNi (4.15) Al (0.85) prepared by this method was the same as that prepared by the melting method. XPS spectra showed that there was layer-active nickel on the original surface of LaNi (4.15) Al (0.85). Through the study of hydrogen absorption properties, the adsorption capacity of hydrogen at 11 ℃ is 0.108L / g and the dissociation equilibrium pressure is 6 × 104Pa.