| 纳米Ni-Fe-B催化还原剂的制备及表征 |
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| 引用本文： | 张卫华,张春华.纳米Ni-Fe-B催化还原剂的制备及表征[J].内蒙古民族大学学报(自然科学版),2014(5):512-515. |
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| 作者姓名： | 张卫华 张春华 |
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| 作者单位： | 内蒙古民族大学成人教育学院,内蒙古通辽,028043 |
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| 基金项目： | 内蒙古民族大学博士基金 |
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| 摘 要： | 用NaBH4还原Fe2＋和Ni2＋制备了Ni-Fe-B合金粉末，利用TEM、XPS、XRD、BET-N2和AAS等表征手段，测定了合金中Ni、Fe和B等的含量，形状和大小，物相结构及其BET比表面积，表面组成及表面电子能态.TEM表明，Ni-Fe-B的平均粒径在30 nm左右，Ni含量为5 wt%时，其BET为22.8 m2g-1.XPS结果表明，表面Ni浓度较高.XRD谱图显示，仅在衍射角2θ为44.5°处有一宽峰，呈典型的非晶态合金衍射，因此可作为优良的加氢催化剂.
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| 关 键 词： | Ni-Fe-B 纳米 催化剂 表征 |
Synthesis and Characterization of Ni-Fe-B Nanoscale Catalyst |
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| ZHANG Wei-hua,ZHANG Chun-hua.Synthesis and Characterization of Ni-Fe-B Nanoscale Catalyst[J].Journal of Inner Mongolia University for the Nationalities(Natural Sciences),2014(5):512-515. |
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| Authors: | ZHANG Wei-hua ZHANG Chun-hua |
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| Institution: | (College of Adult Education, Inner Mongolia University for Nationalities, Tongliao 028043, China) |
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| Abstract: | The Ni-Fe-B ally powder has been laboratory prepared by reduction of Fe2＋and Ni2＋with NaBH4. The shape and diameter, content of Ni, Fe and B, crystal structure and BET surface aera of the powder has been characterized by TEM, XPS, XRD, BET-N2 and AAS. The powder was proved to be nano-size particles with an average diameter of about 30 nm. The Ni-Fe-B contains 5 wt%of nickel and the BET surface aera is about 22.8 m2/g. Its surface concentration of nickel is higher than its total concentration in the particles proved by XPS. The only broad peak around 2θ=44.5° is showed by XRD indicating typical of amorphous alloy diffraction. Therefore It will be excellent catalyst for hydrogenization. |
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| Keywords: | Ni-Fe-B Nanoscale Catalyst Characterization |
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