| AlPO4-11分子筛的吸附热力学性质 |
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| 引用本文： | 严爱珍,周莉蓉,须沁华.AlPO4-11分子筛的吸附热力学性质[J].物理化学学报,1989,5(1):99-102. |
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| 作者姓名： | 严爱珍 周莉蓉 须沁华 |
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| 作者单位： | Department of Chemistry, Nanjing University, Nanjing |
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| 摘 要： | AlPO_4-n系列分子筛是八十年代初由美国联合碳化物公司开发的一类新型分子筛,据报导到目前为止已经合成出20种不同型号结构的AlPO_4分子筛。经X-射线多晶和单晶衍射结构分析,部分AlPO_4分子筛的结构已搞清楚,AlPO_4-11结构也已经测定,它具有十元环一维孔道,孔口大小为0.67nm×0.40nm的分子筛。
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| 关 键 词： | AlPO4－11 分子筛 吸附 热力学 |
| 收稿时间： | 1987-07-15 |
| 修稿时间： | 1988-03-15 |
Adsorption Thermodynamics of Microporous Aluminophosphate AlPO4-11 |
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| Yan Ai-Zhen,Zhou Li-Rong,Xu Qin-Hua.Adsorption Thermodynamics of Microporous Aluminophosphate AlPO4-11[J].Acta Physico-Chimica Sinica,1989,5(1):99-102. |
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| Authors: | Yan Ai-Zhen Zhou Li-Rong Xu Qin-Hua |
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| Institution: | Department of Chemistry, Nanjing University, Nanjing |
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| Abstract: | The adsorption properties of molecules with different polarizabilities, benzene, cyclohexane, n-hexane and water, on aluminophosphate molecular sieve AlPO_4-11 have been investigated by gravimetric method, and compared with those on zeolites NaX and ZSM-5 having high Si/Al ratio.From adsorption data we have calculated the isosteric heat of adsorption and the differential molar adsorption work and entropy of benzene and cyclohexane on AlPO_4-11. The adsorption isotherms can be described by the theory of volume filling of micropores. The results show that the heat of adsorption of hydrocarbons on AlPO_4-11 mainly depends on the surface energy of dispersion.AIPO_4-11 favourably... |
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