| 引用本文: | 龙永福,范真祥,李银奎,等.低Ni/改性Al2O3催化剂表面性质表征.[J].国防科技大学学报,1998,20(5):23-26.[点击复制] |
| Long Yongfu,Fan Zhenxiang,Li Yinkui,et al.The Study of Characteristics of the Surface on the Low Ni/modified Al2O3 Catalyst[J].Journal of National University of Defense Technology,1998,20(5):23-26[点击复制] |
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| 低Ni/改性Al2O3催化剂表面性质表征 |
| 龙永福1, 范真祥1, 李银奎1, 唐代华2, 龚键2 |
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(1.国防科技大学 材料工程与应用化学系 湖南 长沙 410073;2.湖南师范大学 化学系 湖南 长沙 410081)
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| 摘要: |
| 本文用氧吸附法和程序升温脱附(TPD) 法分别考察低Ni/改性Al2O3催化剂的分散度, 环已烷和苯的吸附脱附性能。结果表明: 该催化剂分散性好, 表面至少存在两种吸附中心。苯、环已烷在该催化剂的表面上属于一级可逆吸附脱附过程, 催化剂表面能量分布不均匀。 |
| 关键词: Ni/Al2O3 苯 环已烷 吸附 脱附 |
| DOI： |
| 投稿日期：1998-08-10 |
| 基金项目: |
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| The Study of Characteristics of the Surface on the Low Ni/modified Al2O3 Catalyst |
| Long Yongfu1, Fan Zhenxiang1, Li Yinkui1, Tang Daihua2, Gong Jian2 |
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(1.Department of Materials Engineering and Applied Chemistry, NUDT, Changsha, 410073;2.Department of Chemistry, Hunan Normal University, Changsha, 410081)
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| Abstract: |
| This paper studied the absorption and desorption characteristics of cyclohexane and benzene on the low Ni/Al2O3 catalyst by the method of TPD, and the dispersion-degree of Ni on the low Ni/Al2O3 Catalyst was determined, The result indicated that there were at least two kinds of adsorption centre on the surface of the catalyst, The dispersion degree of Ni was improved, Benzene and cyclohexane were the first order reversible adsorption and desorption process. The energetic distribution of the catalyst is unequal. |
| Keywords: Ni/Al2O3, benzene, cyclohexane, adsorption, desorption. |
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