| 纳米复合固体超强酸SO42-/CoFe2O4的制备和表征 |
| Preparation and Characterization of Nano Solid Superacid SO42-/CoFe2O4 |
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| 摘要: 采用纳米化学制备技术合成了新型的纳米复合团体超强酸催化剂SO42-/CoFe2O4.用XRD、TEM、XPS、红外光谱和比表面测定等技术研究了该催化剂的结构形态,结果表明:所研制的SO42-/CoFe2O4催化剂为晶态纳米粒子(<50nm),比表面积很大(157m2·g-1),SO42-与氧化物的金属离子呈无机双齿螯合状配位化合物的结合形式。以乙酸乙酯合成为模型反应考察了该催化剂的催化活性,比较了酸性和酸强度,推断出该催化剂的酸强度H0<-14.5. |
| 关键词: SO42-/CoFe2O4 纳米复合固体超强酸 结构形态 催化活性 乙酸乙酯 |
| 基金项目: 福建省科委资助课题(No.98－H－13). |
| Abstract: The new nanosolid superacid SO42-/CoFe2O4 is prepared by using nanometer chemical technology.The structure of catalysis has been studied by XRD, TEM, IR, XPS and BET methods.The results show that SO42-/CoFe2O4 is superfine solid(< 50nm) belong to nanocrystal and has high specific surface area (157m2·g-1).SO42- is combined with metal ions of catalysis in a bidentate state.The catalytic activity and strength of acid (H0 < -14.5) is measured by the model reaction of the synthesis of ethyl acetate. |
| Keywords: SO42-/CoFe2O4 nanosolid superacid structural characterization catalytic activity ethyl acetate |
| 投稿时间：2000-02-22 修订日期：2000-06-23 |
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| 林德娟,沈水发,潘海波,陈耐生,黄金陵.纳米复合固体超强酸SO42-/CoFe2O4的制备和表征[J].无机化学学报,2000,16(5):757-762. |
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