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材料工程  2016, Vol. 44 Issue (8): 23-28    DOI: 10.11868/j.issn.1001-4381.2016.08.004
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
甘氨酸-硝酸盐燃烧法制备Beta-Al2O3固体电解质研究
朱承飞, 洪永飞, 薛金花, 黄攀, 吉光辉
南京工业大学 材料科学与工程学院, 南京 210009
Synthesis of Beta-Al2O3 Solid Electrolytes by Glycine-nitrate Combustion
ZHU Cheng-fei, HONG Yong-fei, XUE Jin-hua, HUANG Pan, JI Guang-hui
College of Materials Science & Engineering, Nanjing Tech University, Nanjing 210009, China
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摘要 甘氨酸(GNP)为还原剂、硝酸盐为氧化剂,利用甘氨酸-硝酸盐燃烧法制备beta-Al2O3前驱粉料。利用热分析(TG/DSC)、X射线衍射分析(XRD)、扫描电镜(SEM)、核磁共振(NMR)和交流阻抗谱(EIS)等测试技术对beta-Al2O3的合成工艺进行研究。结果表明:该法合成beta-Al2O3前驱粉料的温度为1150℃,比固相反应法低了150℃,平均粒径约为42.0nm,具有较好的成型和烧结性能。将素坯在1620℃保温烧结,得到的烧结体的结构中Al(Ⅳ)和Al(Ⅵ)分别位于δ=45和δ=-6附近,相对密度为97.6%;350℃时的离子电导率为0.046S·cm-1
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朱承飞
洪永飞
薛金花
黄攀
吉光辉
关键词 钠硫电池固体电解质beta-Al2O3甘氨酸-硝酸盐燃烧法    
Abstract:Beta-Al2O3 precursor powders were synthesized by glycine-nitrate combustion at a low temperature using metal nitrate and GNP as raw materials. The thermal decomposition mechanism of the gel and the formation process of beta-Al2O3 were investigated by XRD, TG/DSC, SEM, NMR and EIS. The results show that beta-Al2O3 precursor powder with the average size of 42.0nm can be obtained at 1150℃, 150℃ lower than the solid state reaction. The precursor powder has good forming and sintering performance. The sample is calcined at 1620℃, then the Al(Ⅳ) and the Al(Ⅵ) in the structure of the sample is around δ=45 and δ=-6, respectively. The relative density of the sample is 97.6%. The ionic conductivity at 350℃ is 0.046S·cm-1.
Key wordssodium sulfur battery    solid electrolyte    beta-Al2O3    glycine-nitrate combustion
收稿日期: 2015-03-12      出版日期: 2016-08-23
中图分类号:  TM911  
通讯作者: 朱承飞(1977-),男,副教授,博士,主要从事电化学、新能源材料和腐蚀与防护方面的研究,联系地址:江苏省南京市鼓楼区新模范马路5号南京工业大学丁家桥校区(210009),zhucf@njtech.edu.cn     E-mail: zhucf@njtech.edu.cn
引用本文:   
朱承飞, 洪永飞, 薛金花, 黄攀, 吉光辉. 甘氨酸-硝酸盐燃烧法制备Beta-Al2O3固体电解质研究[J]. 材料工程, 2016, 44(8): 23-28.
ZHU Cheng-fei, HONG Yong-fei, XUE Jin-hua, HUANG Pan, JI Guang-hui. Synthesis of Beta-Al2O3 Solid Electrolytes by Glycine-nitrate Combustion. Journal of Materials Engineering, 2016, 44(8): 23-28.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.08.004      或      http://jme.biam.ac.cn/CN/Y2016/V44/I8/23
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