| 硬脂酸法制备SO42-/Fe2O3-SiO2固体酸及其催化性能的初步探讨 |
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| 引用本文： | 吴东辉,李丹,杨娟,杨绪杰,陆路德,汪信.硬脂酸法制备SO42-/Fe2O3-SiO2固体酸及其催化性能的初步探讨[J].高等学校化学学报,2001,22(11):1877-1880. |
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| 作者姓名： | 吴东辉 李丹 杨娟 杨绪杰 陆路德 汪信 |
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| 作者单位： | 南京理工大学材料化学研究室,南京,210094 |
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| 基金项目： | 江苏省自然科学基金 ( BK990 72 )，中国博士后科学基金资助 |
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| 摘 要： | 首次用硬脂法制备了Fe2O3-SiO2混合氧化物，经浸渍H2SO4后再焙烧得SO4^2-/Fe2O3-SiO2固体酸催化剂。用TEM，XRD，N2吸附/脱附和TG-DTA等手段对其进行了表征，结果显示制得的Fe2O3-SiO2混合氧化物具有多孔结构，且随着Si含量的增大，其比表面积明显增大，但孔径减小。用乙酸/丁醇酯化催化反应评估了该固体酸的催化性能。
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| 关 键 词： | 固体酸 Fe2O3 SiO2 混合氧化物 硬脂酸 酯化反应 硫酸 负载型催化剂 三氧化二铁 二氧化硅 酯化反应 催化性能 |
Preparation of Solid Acid SO2-4/Fe2O3-SiO2 by Stearic Acid Method and Preliminary Study on Its Catalytic Activity |
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| WU Dong Hui,LI Dan,YANG Juan,YANG Xu Jie,LU Lu De,WANG Xin.Preparation of Solid Acid SO2-4/Fe2O3-SiO2 by Stearic Acid Method and Preliminary Study on Its Catalytic Activity[J].Chemical Research In Chinese Universities,2001,22(11):1877-1880. |
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| Authors: | WU Dong Hui LI Dan YANG Juan YANG Xu Jie LU Lu De WANG Xin |
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| Institution: | WU Dong Hui,LI Dan,YANG Juan,YANG Xu Jie,LU Lu De,WANG Xin * |
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| Abstract: | Fe 2O 3 SiO 2 mixed oxides were prepared by stearic acid method for the first time. After being impregnated by H 2SO 4 solution and calcined at a certain temperature, the mixed oxides formed a solid acid. The samples were characterized by XRD,TEM, N 2 adsorption/desorption and TG DTA methods. The results showed that with the increasing of SiO 2 content the specific surface areas of Fe 2O 3 SiO 2 mixed oxides increased significantly, but the porous sizes decreased. The catalytic activities of the solid acid catalysts were evaluated by esterification of acetic acid and butanol. |
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| Keywords: | Solid acid Fe 2O 3 SiO 2 mixed oxide Stearic acid Esterification |
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