| 磁性固体超强酸SO42-ZnO/ZrO2/Fe3O4的制备研究 |
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| 引用本文： | 何洋,孙炜岩,仲崇娜,张艳,刘琦,刘天孚,王君. 磁性固体超强酸SO42-ZnO/ZrO2/Fe3O4的制备研究[J]. 化学工程师, 2009, 23(8): 4-8 |
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| 作者姓名： | 何洋 孙炜岩 仲崇娜 张艳 刘琦 刘天孚 王君 |
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| 作者单位： | 哈尔滨工程,大学材料科学与化学工程学院,黑龙江,哈尔滨,150001;内蒙古工业大学,化工学院,内蒙古,呼和浩特,010051 |
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| 基金项目： | 黑龙江省科技攻关资助项目,哈尔滨市科学研究基金,哈尔滨工程大学基础研究基金 |
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| 摘 要： | 用化学共沉淀法制备了一系列SO42-ZnO/ZrO2/Fe3O4磁性固体超强酸,利用XRD、TG-DSC、VSM、SEM、TEM及HRTEM等手段对样品结构进行表征.结果表明:引入一定量的Fe3O4和ZnO,有利于四方品相t-ZrO2结构的稳定;Fe3O4超细粒子的引入,使固体超强酸具备了超顺磁性;HRTEM显示ZrO2晶体生长趋向于m-ZrO2的[101]方向,其[101]晶面间距为d(101)=0.29 am,与XRD衍射结果一致.Hammett指示剂测得样品SZZ-1-25-600酸强度最强为H0-13.8,酸性大于浓H2SO4(H0=-11.93).
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| 关 键 词： | 化学共沉淀法 固体酸 超顺磁性 四方晶相 |
Study on the synthesis of magnetic solid superacid SO_4~(2-)/ZnO/ZrO_2/Fe_3O_4 |
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| HE Yang,SUN Wei-yan,ZHONG Chong-na,ZHANG Yan,LIU Qi,LIU Tian-fu,WANG Jun. Study on the synthesis of magnetic solid superacid SO_4~(2-)/ZnO/ZrO_2/Fe_3O_4[J]. Chemical Engineer, 2009, 23(8): 4-8 |
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| Authors: | HE Yang SUN Wei-yan ZHONG Chong-na ZHANG Yan LIU Qi LIU Tian-fu WANG Jun |
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| Affiliation: | 1.College of Material Science and Chemical Engineering;Harbin Engineering University;Harbin 150001;China;2.College of Chemical Engineering;Inner Mongolia University of Technology;Huhehaote 010051;China |
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| Abstract: | A novel magnetic solid superacid SO42-/ZnO/ZrO2/Fe3O4 was prepared by co-precipitation.The physiochemical properties of the materials were characterized by means of XRD,TG -DSC,SEM,TEM and HRTEM techniques.The results indicate that the crystallization temperature of the materials shifts to higher temperature with increasing ZnO and Fe3O4 content.The introduction of ZnO and Fe3O4 delays the transition from t-ZrO2 to m-ZrO2.The introduction of Fe3O4 also endows this solid superacid a super-paramagnetic featur... |
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| Keywords: | co-precipitation solid acids superparamagnetism tetragonal phase |
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