| 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): |
| 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 |
| Studies on the Composite Supports of Nanometer ZrO_2/Al_2O_3 and Ni/ZrO_2/Al_2O_3 Catalysts |
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| DOI： |
| 中文关键词: 负载型,纳米ZrO2/Al2O3,复合载体,甲烷二氧化碳重整 |
| 英文关键词:Supported zirconia/alumina,Composite support,Ni catalyst,CO_2 reforming of CH_4 |
| 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 |
| 李凝 罗来涛 |
| 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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| 中文摘要: |
| 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. |
| 英文摘要: |
| 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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