| CoFe2O4纳米粉体的聚丙烯酰胺凝胶法合成、表征及磁特性 |
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| 引用本文： | 王伟鹏,杨 华,县 涛,魏智强,李瑞山,冯旺军.CoFe2O4纳米粉体的聚丙烯酰胺凝胶法合成、表征及磁特性[J].无机化学学报,2011,27(6):1071-1076. |
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| 作者姓名： | 王伟鹏 杨 华 县 涛 魏智强 李瑞山 冯旺军 |
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| 作者单位： | 1. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050;兰州理工大学理学院,兰州,730050
2. 兰州理工大学理学院,兰州,730050 |
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| 基金项目： | 国家自然科学基金，教育部重点，兰州理工大学优秀青年基金 |
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| 摘 要： | 采用改进的聚丙烯酰胺凝胶法制备了CoFe2O4纳米粉体.利用TG-DSC、mR及XRD等多种手段研究了干凝胶的热分解及CoFe2O4的成相过程.实验表明,以EDTA为配位剂,在500℃的烧结温度下可制备出高纯的CoFe2O4纳米粉体.同时发现.通过改变双丙烯酰胺与丙烯酰胺的比例,可以调控粉体的晶粒尺寸;随着双丙烯酰胺比...
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| 关 键 词： | 铁酸钴 纳米粉体 聚丙烯酰胺凝胶法 晶粒尺寸调控 |
Polyacrylamide Gel Synthesis, Characterization and Magnetic Properties of CoFe2O4 Nanopowders |
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| WANG Wei-Peng,YANG Hu,XIAN Tao,WEI Zhi-Qiang,LI Rui-Shan and FENG Wang-Jun.Polyacrylamide Gel Synthesis, Characterization and Magnetic Properties of CoFe2O4 Nanopowders[J].Chinese Journal of Inorganic Chemistry,2011,27(6):1071-1076. |
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| Authors: | WANG Wei-Peng YANG Hu XIAN Tao WEI Zhi-Qiang LI Rui-Shan and FENG Wang-Jun |
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| Institution: | State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; School of Science, Lanzhou University of Technology, Lanzhou 730050, China,State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; School of Science, Lanzhou University of Technology, Lanzhou 730050, China,State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; School of Science, Lanzhou University of Technology, Lanzhou 730050, China,School of Science, Lanzhou University of Technology, Lanzhou 730050, China,School of Science, Lanzhou University of Technology, Lanzhou 730050, China and School of Science, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | A modified polyacrylamide gel method was used to fabricate CoFe2O4 nanopowders.Thermogravimetric(TG) analysis,differential scanning calorimetry(DSC) analysis,fourier transform infrared(FTIR) spectroscopy,and X-ray diffraction(XRD) were used in combination to investigate the thermal decomposition process of xerogel and the formation of CoFe2O4 phase.It is demonstrated that high-phase-purity CoFe2O4 nanopowders can be prepared by using the chelating agent ethylenediamine-tetraacetic acid(EDTA) at a calcining ... |
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| Keywords: | cobalt ferrite nanopowders polyacrylamide gel method grain-size tailoring |
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