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| FT-IR Study of Carbon Nanotube Supported Co-Mo Catalysts | |
| 引用本文： | HongyanShang ChenguangLiu FeiWei. FT-IR Study of Carbon Nanotube Supported Co-Mo Catalysts[J]. 天然气化学杂志, 2004, 13(2): 95-100 |
| 作者姓名： | HongyanShang ChenguangLiu FeiWei |
| 作者单位： | [1]StateKeyLaboratoryofHeavyOilProcessing,KeyLaboratoryofCatalysis,CNPC,UniversityofPetroleum,Dongyin9257061,China [2]DepartmentofChemicalEngineering,TsinghuaUniversity,Beijing100084,China |
| 基金项目： | Foundation of Innovation for Middle-aged and Youth, CNPC (Foundation No.W990411) |
| 摘 要： | In this paper, adsorption properties of dibenzothiophene (DBT) on carbon nanotube, carbonnanotube supported oxide state and sulfide state CoMo catalysts are studied by using thermal gravi-metric analysis (TGA) technique and FT-IR spectroscopy. Activated carbon support, 7-A1203 supportand supported CoMo catalysts are also subjected to studies for comparison. It was found that sulfidestate CoMoS/MWCNT, CoMoS/AC and CoMoS/γ-A12O3 catalysts adsorbed much more DBT moleculesthan their corresponding oxide state catalysts, as well as their corresponding supports. The chemicallyadsorbed DBT aromatic molecules did not undergo decomposition on the surface of supports, supportedoxide state CoMo catalysts and sulfide state CoMo catalysts when out-gassing at 373 K. FT-IR results indicated that DBT molecules mainly stand upright on the active sites (acid sites and/or transition active phases) of CoMoS/MWCNT catalyst. However, DBT aromatic molecules mainly lie flat on MWCNT and CoMoO/MWCNT. |
| 关 键 词： | 碳纳米管 钴 钼 催化剂 二苯并噻吩 吸附特性 傅立叶变换红外光谱 |
FT-IR Study of Carbon Nanotube Supported Co-Mo Catalysts |
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| Hongyan Shang,Chenguang Liu,Fei Wei. FT-IR Study of Carbon Nanotube Supported Co-Mo Catalysts[J]. Journal of Natural Gas Chemistry, 2004, 13(2): 95-100 | |
| Authors: | Hongyan Shang Chenguang Liu Fei Wei |
| Affiliation: | Hongyan Shang, Chenguang Liu, Fei Wei |
| Abstract: | In this paper, adsorption properties of dibenzothiophene (DBT) on carbon nanotube, carbon nanotube supported oxide state and sulfide state CoMo catalysts are studied by using thermal gravimetric analysis (TGA) technique and FT-IR spectroscopy. Activated carbon support, γ-Al2O3 support and supported CoMo catalysts are also subjected to studies for comparison. It was found that sulfide state CoMoS/MWCNT, CoMoS/AC and CoMoS/γ-Al2O3 catalysts adsorbed much more DBT molecules than their corresponding oxide state catalysts, as well as their corresponding supports. The chemically adsorbed DBT aromatic molecules did not undergo decomposition on the surface of supports, supported oxide state CoMo catalysts and sulfide state CoMo catalysts when out-gassing at 373 K. FT-IR results indicated that DBT molecules mainly stand upright on the active sites (acid sites and/or transition active phases) of CoMoS/MWCNT catalyst. However, DBT aromatic molecules mainly lie flat on MWCNT and CoMoO/MWCNT. |
| Keywords: | FT-IR dibenzothiophene carbon nanotube adsorption |
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