| 负载型钴-钼氮化物的制备及吡啶加氢脱氮活性的研究 |
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| 引用本文： | 齐兴义,熊光,杨树武,辛勤.负载型钴-钼氮化物的制备及吡啶加氢脱氮活性的研究[J].高等学校化学学报,1998,19(10):1645-1649. |
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| 作者姓名： | 齐兴义 熊光 杨树武 辛勤 |
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| 作者单位： | 中国科学院大连化学物理研究所, 催化基础国家重点实验室, 大连, 116023 |
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| 摘 要： | 以钼磷酸+硝酸钴、仲钼酸铵+硝酸钴、仲钼酸铵为前体活性相组元及γ-Al2O3为载体,制备了负载型双(单)组元过渡金属氮化物(CoMoN-(Ⅰ,Ⅱ,Ⅲ),MoN-Ⅳ],并利用BET、XPS、H2-TPD及Raman等手段进行了表征;以正己烷+环己烷+吡啶为模型底物考察了上述催化剂的吡啶加氢脱氮活性.与CoMoN-Ⅱ、CoMoN-Ⅲ和MoN-Ⅳ相比,CoMoN-Ⅰ具有较高的吡啶加氢脱氮活性.
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| 关 键 词： | 氮化物 12-钼磷酸 &gamma -Al2O3 吡啶 加氢脱氮 |
| 收稿时间： | 1997-09-09 |
Studies on Preparation of Supported Cobalt-molybdenum Nitrides and Their Catalytic Behaviour for Pyridine HDN |
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| QI Xing-Yi,XIONG Guang,YANG Shu-Wu,XIN Qin.Studies on Preparation of Supported Cobalt-molybdenum Nitrides and Their Catalytic Behaviour for Pyridine HDN[J].Chemical Research In Chinese Universities,1998,19(10):1645-1649. |
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| Authors: | QI Xing-Yi XIONG Guang YANG Shu-Wu XIN Qin |
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| Institution: | State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 |
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| Abstract: | γ Alumina supported bi(mono)metallic transition metal nitrides were prepared respectively with 12 phosphomolybdic acid plus cobalt nitrate(denoted as CoMoN-Ⅰ and CoMoN-Ⅱ related with the precursor of the nitride, CoMoN-Ⅰ, calcined at 773 Kfor 6 h before nitriding), ammonium heptamolybdate plus cobalt nitrate(denoted as CoMoN-Ⅲ), and only ammonium heptamolybdate(denoted as MoN-Ⅳ) as the precursor active phases, using temperature programmed reduction with NH3, and characterized with BET, XRD, XPS, H2-TPDand Raman. Pyridine was selected as a model substrate in order to evaluate the HDNcatalytic activity of nitrides synthesized above. It was found that CoMoN-Ⅰ possesses conspicuously high pyridine HDNactivity as compared to that of CoMoN-Ⅱ, CoMoN-Ⅲ and MoN-Ⅳ. |
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| Keywords: | Nitride 12-Phosphomolybdic acid γ-Alumina Pyridine Hydrodenitrogenation |
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