| 溶胶法在活性炭上负载金属纳米颗粒的参数和机理研究 |
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| 引用本文： | 谷建宇,李开喜,孙国华.溶胶法在活性炭上负载金属纳米颗粒的参数和机理研究[J].炭素技术,2010,29(3):5-10. |
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| 作者姓名： | 谷建宇 李开喜 孙国华 |
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| 作者单位： | 1. 中国科学院山西煤炭化学研究所,山西,太原,030001;中国科学院研究生院,北京,100049
2. 中国科学院山西煤炭化学研究所,山西,太原,030001 |
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| 基金项目： | 太原市大学生创新创业专项 |
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| 摘 要： | 使用正交实验法研究了溶胶-凝胶法在活性炭上负载金属纳米颗粒的工艺条件.在固定活性炭量和表面活性剂量的情况下,研究了金属负载量、乙二醇用量、碱性中和剂量和氢还原时间等四因素对负载产物的比表面积和负载效果的影响.通过直观分析和方差分析找出溶胶法在活性炭上负载金属纳米颗粒的最优工艺条件.对样品的氮吸附检测和扫描电镜(SEM)照片检测发现,当负载量在16%以下时,金属粒子分散良好,无明显聚集现象.实验结果表明,溶胶-凝胶法可以控制金属粒子主要附着在活性炭的外表面和大孔壁上,对微孔几乎没有影响.因此,可用于制备兼具高负载量和大比表面积特点的高性能金属/活性炭复合催化剂.
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| 关 键 词： | 活性炭 溶胶-凝胶 催化剂负载 纳米金属颗粒 |
Optimized parameters of loading Ni nanoparticles on activated carbon by sol-gel method |
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| GU Jian-yu,LI Kai-xi,SUN Guo-hua.Optimized parameters of loading Ni nanoparticles on activated carbon by sol-gel method[J].Carbon Techniques,2010,29(3):5-10. |
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| Authors: | GU Jian-yu LI Kai-xi SUN Guo-hua |
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| Affiliation: | GU Jian-yu1,2,LI Kai-xi1,SUN Guo-hua1(1.Institute of Coal Chemistry,Chinese Academy of Sciences,shanxi Taiyuan 030001,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | The orthogonal experiment was applied in the research of loading Ni nanoparticle on activated carbon by sol-gel method.The influences of loading metal amount,alcohol amount,alkaline neutralizing reagent and deoxidization time on the specific surface areas of the activated carbons under fixed ratio of surface activated reagent /carbon were analyzed.By intuitionistic and variance analysis,the optimum technology was found out from the orthogonal test data.The composites were examined by scanning electron micro... |
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| Keywords: | Activated carbon sol-gel catalyst support metal nanoparticle |
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