| 负载型纳米ZrO_2/Al_2O_3复合载体的制备和表征及其Ni/ZrO_2/Al_2O_3催化性能的研究 |
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| 引用本文： | 李凝,罗来涛.负载型纳米ZrO_2/Al_2O_3复合载体的制备和表征及其Ni/ZrO_2/Al_2O_3催化性能的研究[J].分子催化,2005(5). |
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| 作者姓名： | 李凝 罗来涛 |
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| 作者单位： | 南昌大学化学系，南昌大学化学系 江西南昌330047 桂林工学院材料与化学工程系，广西桂林541004，江西南昌330047 |
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| 基金项目： | 高等学校博士点专项科研基金资助项目(20040403001)，江西省教育厅科学技术研究项目 |
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| 摘 要： | 以大孔Al2O3为基载体,采用沉积-沉淀法和溶胶-沉积法制备了负载型纳米ZrO2/Al2O3复合载体.用XRD、TEM和比表面与孔径测定等手段对载体进行了表征.结果表明,负载型纳米ZrO2/Al2O3复合载体具有较大的比表面积和适宜的孔径分布,纳米ZrO2在载体上呈单层均匀分布.以CH4-CO2重整制合成气为探针反应,考察了Ni/ZrO2/Al2O3催化剂的活性和选择性.
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| 关 键 词： | 负载型 纳米ZrO2/Al2O3 复合载体 甲烷二氧化碳重整 |
Studies on the Composite Supports of Nanometer ZrO_2/Al_2O_3 and Ni/ZrO_2/Al_2O_3 Catalysts |
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| LI Ning,LUO Lai-tao.Studies on the Composite Supports of Nanometer ZrO_2/Al_2O_3 and Ni/ZrO_2/Al_2O_3 Catalysts[J].Journal of Molecular Catalysis (China),2005(5). |
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| Authors: | LI Ning LUO Lai-tao |
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| Institution: | LI Ning~1,2,LUO Lai-tao~1*1.Department of chemistry,NanChang university,330047,JiangXi NanChang,2.Department of Material and Chemical engineer,GuiLin Institute of Technology,541004,GuangXi GuiLin |
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| Abstract: | Nanometer ZrO_2/Al_2O_3composite supports were prepared by deposition-precipitation and sol- deposition methods.The properties of ZrO_2/Al_2O_3 were characterized by means of XRD and TEM.The results showed that the composite supports have greater specific surface area and proper pore distribution,and found that the nanometer ZrO_2 was distributed in uniform on the Al_2O_3.The Ni/ZrO_2/Al_2O_3 catalysts had a better catalytic activity and selectivity for CO_2 reforming of CH_4 than Ni/ZrO_2 catalyst. |
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| Keywords: | Supported zirconia/alumina Composite support Ni catalyst CO_2 reforming of CH_4 |
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