采用超声辅助的浸渍-还原法制备了Ni-B/CNTs及La改性的Ni-B/CNTs非晶态合金催化剂,运用ICP、XPS、TPR、H2-TPD、CO化学吸附法对催化剂进行表征,并研究了催化剂的乙炔选择加氢性能.与Ni-B/CNTs相比,添加适量La提高了活性Ni表面积,增强了Ni的富电子性,促进了催化剂还原、氢脱附性能,并具有更好的加氢活性,La的适宜添加量为5%～8%(质量分数).
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