| pH值对溶液燃烧法制备纳米LaFeO3的影响 |
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| 引用本文： | 李小慈,李润生,周俊艺,龙俞霖,姚莹莹,叶帆,杨骏.pH值对溶液燃烧法制备纳米LaFeO3的影响[J].功能材料,2011,42(Z3):391-394. |
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| 作者姓名： | 李小慈 李润生 周俊艺 龙俞霖 姚莹莹 叶帆 杨骏 |
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| 作者单位： | 暨南大学化学系,广东,广州,510632 |
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| 摘 要： | 以硝酸镧和硝酸铁为氧化剂,柠檬酸为燃料,采用溶液燃烧法制备了钙钛矿型LaFeO3.通过XRD和SEM研究了分别以氨水和NaOH溶液为pH调节剂,前驱物溶液pH值对制备的纳米LaFe03粉体的晶相组成和微观形貌的影响.结果表明不同的pH调节剂和前驱物溶液pH值对燃烧产物的晶相组成、晶粒大小和微观相貌都有显著的影响.氨水调...
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| 关 键 词： | pH值 溶液燃烧合成 LaFeO3 |
The effect of pH value on nanocrystalline LaFeO_3 prepared by solution combustion synthesis |
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| LI Xiao-ci,LI Run-sheng,ZHOU Jun-yi,LONG Yu-fin,YAO Ying-ying,YE Fan,YANG Jun.The effect of pH value on nanocrystalline LaFeO_3 prepared by solution combustion synthesis[J].Journal of Functional Materials,2011,42(Z3):391-394. |
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| Authors: | LI Xiao-ci LI Run-sheng ZHOU Jun-yi LONG Yu-fin YAO Ying-ying YE Fan YANG Jun |
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| Affiliation: | LI Xiao-ci,LI Run-sheng,ZHOU Jun-yi,LONG Yu-lin,YAO Ying-ying,YE Fan,YANG Jun(Department of Chemistry,Jinan University,Guangzhou 510632,China) |
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| Abstract: | Perovskite compound LaFeO3 was prepared by solution combustion synthesis using lanthanum nitrate and ferric nitrate as oxidants,citric acid as organic fuel and ammonia and NaOH solution as pH regulator.The effect of pH value of precursor solution on phase composition,crystallite size and morphology of LaFeO3 was investigated by using X-ray diffraction(XRD) and scanning electron microscope(SEM).The results showed that the pH regulator and the pH value of precursor solution had significant effect on the phase... |
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| Keywords: | pH value solution combustion synthesis LaFeO3 |
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