| Sm_2O_3对Ni/Sepiolite催化剂CO和CO_2甲烷化的影响 |
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| 引用本文： | 武致,罗来涛,邓庚凤.Sm_2O_3对Ni/Sepiolite催化剂CO和CO_2甲烷化的影响[J].江西科学,2000(2). |
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| 作者姓名： | 武致 罗来涛 邓庚凤 |
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| 作者单位： | 南昌大学应用化学研究所!江西南昌330047 |
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| 基金项目： | 国家自然科学基金资助项目!(编号 :2 9863 0 0 2 ) |
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| 摘 要： | 采用浸渍法制备了Ni/Sepiolite及Ni_Sm/Sepiolite催化剂 ,并测定了催化剂的CO和CO2 甲烷化活性。用TPR、H2 _TPD、CO化学吸附和XPS等手段研究了催化剂的表面性质。结果表明 ,Sm2 O3的加入提高了Ni/Sepio lite催化剂的CO和CO2 甲烷化活性 ,增加了催化剂中Ni的分散度、活性表面积 ,降低了电子结合能
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| 关 键 词： | Ni/Sepiolite催化剂 稀土 海泡石 CO和CO_2甲烷化 |
The Effect of Sm_2O_3 on Ni/Sepiolite Catalyst for CO and CO_2 Methanation |
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| WU Zhi,LUO Lai_tao,DENG Geng_feng\,.The Effect of Sm_2O_3 on Ni/Sepiolite Catalyst for CO and CO_2 Methanation[J].Jiangxi Science,2000(2). |
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| Authors: | WU Zhi LUO Lai_tao DENG Geng_feng\ |
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| Abstract: | Two series of Ni/Sepiolite and Ni_Sm/Sepiolite catalysts were prepared by impregnation and the catalytic activity for CO and CO\-2 were evalu ated. The surface behaviours of catalysts were characterized by TPR, H\-2_TPD, X PS and CO chemical adsorption. The results indicated that the addition of samari um oxide increased the activity of Ni/Sepiolite catalyst for CO and CO\-2 methan ation, enlarged the dispersion of nickel on supporting and activating nickel sur face area on the catalyst, and increased the electronic cloud density of nickel. |
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| Keywords: | Ni/Sepiolite catalyst Rare earth Sepiolite CO and CO\-2 methanation |
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