| 担载钒氧化物催化剂对丙烷选择氧化性能 |
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| 引用本文： | 刘坚,赵震,王宏宣,段爱军,姜桂元.担载钒氧化物催化剂对丙烷选择氧化性能[J].物理化学学报,2011,27(11):2659-2664. |
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| 作者姓名： | 刘坚 赵震 王宏宣 段爱军 姜桂元 |
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| 作者单位： | State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, P. R. China |
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| 基金项目： | 新世纪优秀人才支持计划，高等学校博士点基金，国家自然科学基金，国家高技术研究发展计划(863)，中石油项目及创新基金 |
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| 摘 要： | 用等体积浸渍法制备了SBA-15担载的钒基氧化物催化剂,使用X射线衍射（XRD）分析、氮气吸附、紫外激光拉曼、傅里叶变换红外（FTIR）光谱和紫外-可见漫反射（UV-Vis DRS）光谱对催化剂的结构进行了表征,并评价了催化剂对丙烷选择氧化的活性与选择性.实验结果表明SBA-15载体对丙烷选择氧化的活性优于常规的SiO2载体.SBA-15担载的低载量催化剂是高分散的催化剂体系,在低钒载量（n（V）/n（Si）<2.5%）时,催化剂具有规则的六方介孔结构.低钒载量（n（V）/n（Si）<0.1%）时,隔离四配位的钒氧化物是丙烷选择氧化生成醛类化合物的活性物种;高钒载量（n（V）/n（Si）>2.5%）时,聚合六配位的钒氧化物和微晶钒氧化物是丙烷脱氢或深度氧化的活性物种.
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| 关 键 词： | 丙烷选择氧化 催化剂 SBA-15介孔分子筛 担载钒氧化物 表征 |
| 收稿时间： | 2011-06-07 |
| 修稿时间： | 2011-08-31 |
Selective Oxidation Performance of Propane over Supported Vanadium Oxide Catalysts |
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| LIU Jian,ZHAO Zhen,WANG Hong-Xuan,DUAN Ai-Jun,JIANG Gui-Yuan.Selective Oxidation Performance of Propane over Supported Vanadium Oxide Catalysts[J].Acta Physico-Chimica Sinica,2011,27(11):2659-2664. |
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| Authors: | LIU Jian ZHAO Zhen WANG Hong-Xuan DUAN Ai-Jun JIANG Gui-Yuan |
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| Institution: | State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, P. R. China |
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| Abstract: | A series of SBA-15 supported vanadium oxide catalysts with different active components were prepared by the method of incipient-wet impregnation.The structures of the catalysts were characterized by N_2 adsorption,X-ray diffraction(XRD),ultraviolet(UV)-Raman,Fourier transform infrared(FTIR),and ultraviolet-visble diffuse reflectance spectroscopy(UV-Vis DRS) techniques,and their catalytic performances for the selective oxidation of propane were investigated.The results showed that SBA-15 was a better support... |
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| Keywords: | Selective oxidation of propane Catalyst SBA-15 mesoporous molecular sieve Supported vanadium oxide Characterization |
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