| 煤质碳化硅纳米颗粒的合成与表征 |
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| 引用本文： | 李宝梅,王英勇,靳国强,郭向云.煤质碳化硅纳米颗粒的合成与表征[J].材料导报,2011,25(14):61-64. |
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| 作者姓名： | 李宝梅 王英勇 靳国强 郭向云 |
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| 作者单位： | 1. 中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原030001;中国科学院研究生院,北京100039
2. 中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原,030001 |
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| 基金项目： | 国家自然科学基金(20973190) |
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| 摘 要： | 以廉价的煤和Na2SiO3.9H2O为原料,辅以Fe(NO3)3.9H2O为助剂,在1300℃氩气气氛下通过碳热还原反应制备出碳化硅纳米颗粒。采用X射线分析衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、荧光光谱仪(PL)和低温氮吸附-脱附对所制备的碳化硅样品进行了表征。结果表明,制得的β-SiC纳米颗粒尺寸介于20～60nm,当n(Fe)/n(Si)=0.01时,碳化硅颗粒比表面积最高,为32m2/g。
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| 关 键 词： | 碳化硅颗粒 煤 碳热还原 荧光 |
Synthesis and Characterization of SiC Nanoparticle from Coal |
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| LI Baomei,WANG Yingyong,JIN Guoqiang,GUO Xiangyun.Synthesis and Characterization of SiC Nanoparticle from Coal[J].Materials Review,2011,25(14):61-64. |
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| Authors: | LI Baomei WANG Yingyong JIN Guoqiang GUO Xiangyun |
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| Affiliation: | LI Baomei1,2,WANG Yingyong1,JIN Guoqiang1,GUO Xiangyun1(1 State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,2 Graduate University of the Chinese Academy of Sciences,Beijing 100039) |
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| Abstract: | SiC nanoparticles were synthesized by the carbothermal reduction reaction under Ar flow at 1300℃,in which low-cost coal and Na2SiO3·9H2O were used as carbon and silica sources respectively,and Fe(NO3)3·9H2O was used as additive.X-ray diffraction,scanning electron microscope,transmission electronic microscopic,photoluminescence and low temperature N2 adsorption-desorption were used to characterize the product.The results indicate that the size of β-SiC varies from 20nm to 60nm.When the molar ratio of iron and silicon is 0.01,the specific surface area of product can get to a maximum of 32m2/g. |
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| Keywords: | SiC particles coal carbothermal reduction photoluminescence |
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