| 具有Ruddlesden-Popper结构的Ca_(1+x)Mn_xO_(1+3x)(x=1,2,3)的合成及层间Ca~(2+)的抽出 |
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| 引用本文： | 林双妹,黄侦勇,孙妍,王晓蓉,汤睿昆,马淑兰,杨晓晶. 具有Ruddlesden-Popper结构的Ca_(1+x)Mn_xO_(1+3x)(x=1,2,3)的合成及层间Ca~(2+)的抽出[J]. 北京师范大学学报(自然科学版), 2009, 45(4): 370-374 |
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| 作者姓名： | 林双妹 黄侦勇 孙妍 王晓蓉 汤睿昆 马淑兰 杨晓晶 |
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| 作者单位： | 北京师范大学化学学院,1008875,北京;北京师范大学化学学院,1008875,北京;北京师范大学化学学院,1008875,北京;北京师范大学化学学院,1008875,北京;北京师范大学化学学院,1008875,北京;北京师范大学化学学院,1008875,北京;北京师范大学化学学院,1008875,北京 |
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| 基金项目： | 国家自然科学基金资助项目(20671012);;留学回国人员科研启动基金资助项目 |
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| 摘 要： | 采用溶胶凝胶法合成前驱体,然后在氧气气氛下加热合成了具有层状钙钛矿Ruddlesden-Popper结构的化合物Ca1+xMnxO1+3x(x=1,2,3),尝试采用酸溶液对其层间Ca2+离子进行抽出.实验发现HCl处理单层Ca2MnO4,层状结构遭到破坏;而用(NH4)2S2O8与HCl的混合溶液处理则能维持其层状结构,且Ca2+离子抽出率大于60%,其抽出机制为氧化还原和离子交换.用HCl能够抽出双层Ca3Mn2O7的层间Ca2+,并保持较好的结构.
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| 关 键 词： | 层状钙钛矿结构 锰氧化物 合成 钙离子抽出 |
SYNTHESIS OF Ca_(1+x)Mn_xO_(1+3x)(x=1, 2, 3) COMPOUNDS WITH THE RUDDLESDEN-POPPER STRUCTURES AND EXTRACTION OF THEIR INTERLAYER Ca~(2+) IONS |
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| LIN Shuangmei,HUANG Zhenyong,SUN Yan,WANG Xiaorong,TANG Ruikun,MA Shulan,YANG Xiaojing. SYNTHESIS OF Ca_(1+x)Mn_xO_(1+3x)(x=1, 2, 3) COMPOUNDS WITH THE RUDDLESDEN-POPPER STRUCTURES AND EXTRACTION OF THEIR INTERLAYER Ca~(2+) IONS[J]. Journal of Beijing Normal University(Natural Science), 2009, 45(4): 370-374 |
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| Authors: | LIN Shuangmei HUANG Zhenyong SUN Yan WANG Xiaorong TANG Ruikun MA Shulan YANG Xiaojing |
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| Affiliation: | College of Chemistry;Beijing Normal University;100875;Beijing;China |
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| Abstract: | Ca1+xMnxO1+3x (x=1,2,3) compounds with a layered perovskite Ruddlesden-Popper structures were synthesized. First a precursor was prepared by a sol-gel process,this was followed by heating in an oxygen atmosphere. Extraction of Ca2+ ions in the interlayer was carried out by acid treatment. Mono-layered Ca2MnO4 after going through a HCl solution had the layered structure demolished; whereas going through a mixed solution of (NH4)2S2O8 and HCl had the Ca2+ ions extracted at a rate larger than 60% whilst retain... |
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| Keywords: | layered perovskite structure manganese oxide synthesis Ca2+ extraction |
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