| 纳米复合固体超强酸SO42-/CoFe2O4的制备和表征 |
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| 引用本文： | 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) |
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| 作者姓名： | 林德娟 沈水发 潘海波 陈耐生 黄金陵 |
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| 作者单位： | 1. 福州大学功能材料研究所,福州,350002;福建漳州师范学院化学系,漳州,363000
2. 福州大学功能材料研究所,福州,350002 |
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| 基金项目： | 福建省科委资助课题!（No． 98－H－13）。 |
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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。
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| 关 键 词： | SO_4~(2-)/ CoFe_2O_4 纳米复合固体超强酸 结构形态 催化活性 乙酸乙酯 |
Preparation and Characterization of Nano Solid Superacid SO42-/CoFe2O4 |
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| LIN De-Juan,SHE Shui-Fa,PAN Hai-Bo,CHEN Nai-Sheng,HUANG Jin-Ling. Preparation and Characterization of Nano Solid Superacid SO42-/CoFe2O4[J]. Chinese Journal of Inorganic Chemistry, 2000, 16(5) |
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| Authors: | LIN De-Juan SHE Shui-Fa PAN Hai-Bo CHEN Nai-Sheng HUANG Jin-Ling |
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| 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 (157 m2 g-1 ). SO42- is combined with metal ions of catalysis in a bidentate state. The catalytic activity and strength of acid (HO < - 14. 5) is measured by the model reaction of the synthesis of ethyl acetate. |
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| Keywords: | SO42- /CoFe2O4 nanosolid superacid structural characterization catalytic activity ethyl acetate |
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