| SO42-/ZrO2-Nd2O3固体酸的制备及其催化活性 |
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| 引用本文： | 廖洋,李洋,马骏,毛卉,杜强,赵仕林. SO42-/ZrO2-Nd2O3固体酸的制备及其催化活性[J]. 电子科技大学学报(自然科学版), 2015, 44(1): 140-146. DOI: 10.3969/j.issn.1001-0548.2015.01.024 |
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| 作者姓名： | 廖洋 李洋 马骏 毛卉 杜强 赵仕林 |
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| 作者单位： | 1.四川师范大学化学与材料科学学院 成都 610066; |
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| 基金项目： | 国家自然科学基金(51173122;21406147)；四川省教育厅资助项目 |
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| 摘 要： | 以皮胶原纤维为模板剂,硫酸锆为锆源,掺杂稀土Nd元素制备SO42-/ZrO2-Nd2O3固体酸。通过TG、XRD、FT-IR、SEM以及N2吸附脱附分析等表征了制备条件对SO42-/ZrO2-Nd2O3固体酸结构的影响。结果表明,SO42-/ZrO2-Nd2O3固体酸较好地保持了模板的纤维结构,添加稀土Nd元素能有效抑制晶粒增长,ZrO2-Nd2O3晶粒尺寸为5.1~11.6 nm,比表面积为63.96 m2/g;以乙酸和正丁醇的酯化反应为模型反应考察SO42-/ZrO2-Nd2O3固体酸的催化活性,催化剂活性较高,重复使用5次,乙酸的转化率仍可达到85%,表现出较好的重复使用性,具有一定的工业应用前景。
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| 关 键 词： | 失活 制备 再生 SO42-/ZrO2-Nd2O3固体酸 |
| 收稿时间： | 2014-01-16 |
Preparation of SO42-/ZrO2-Nd2O3 Solid Acid Catalyst and Its Catalytic Activities |
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| LIAO Yang,LI Yang,MA Jun,MAO Hui,DU Qiang,ZHAO Shi-lin. Preparation of SO42-/ZrO2-Nd2O3 Solid Acid Catalyst and Its Catalytic Activities[J]. Journal of University of Electronic Science and Technology of China, 2015, 44(1): 140-146. DOI: 10.3969/j.issn.1001-0548.2015.01.024 |
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| Authors: | LIAO Yang LI Yang MA Jun MAO Hui DU Qiang ZHAO Shi-lin |
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| Affiliation: | 1.College of Chemistry and Materials Science,Sichuan Normal University Chengdu 610066;2.The Engineering Center for the Development of Farmland Ecosystem Service Functions,Sichuan Province Institutions of Higher Education Chengdu 610066 |
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| Abstract: | SO42-/ZrO2-Nd2O3 solid acid was prepared by using collagen fibers as template, zirconium sulfate as zirconium source and doping with rare earth element Nd. The as-prepared SO42-/ZrO2-Nd2O3 were characterized by TG, XRD, FT-IR、SEM and N2 adsorption-desorption analysis so as to investigate the influence of preparation conditions on the catalyst structure. The results reveal that the fibrous structures of collagen fibers are preserved in the SO42-/ZrO2-Nd2O3 solid acid. The growth of the ZrO2-Nd2O3 particles can be efficiently suppressed by Nd doping. The diameters of ZrO2-Nd2O3 particles are distributed in the range of 5.1~11.6 nm. The BET surface area of SO42-/ZrO2-Nd2O3 solid acid is 63.96 m2/g. The esterification of acetic acid with n-butanol was carried out as a model reaction to calculate the catalytic properties of SO42-/ZrO2-Nd2O3 solid acid. The SO42-/ZrO2-Nd2O3 solid acid exhibits high catalytic activity. Furthermore, the conversion rate of acetic acid can reach 85% in the fifth cycle, which showsthe satisfied reusability, thus showing a potential industrial application. |
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| Keywords: | deactivation preparation regeneration SO42-/ZrO2-Nd2O3 solid acid |
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