| 介孔CeNiO催化剂的合成及其丙烷氧化脱氢制丙烯反应性能 |
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| 引用本文： | 汪彩彩,李建辉,孙毅飞,朱晓权,黄传敬,翁维正,万惠霖. 介孔CeNiO催化剂的合成及其丙烷氧化脱氢制丙烯反应性能[J]. 物理化学学报, 2011, 27(10): 2421-2426. DOI: 10.3866/PKU.WHXB20110932 |
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| 作者姓名： | 汪彩彩 李建辉 孙毅飞 朱晓权 黄传敬 翁维正 万惠霖 |
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| 作者单位： | State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, P. R. China |
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| 基金项目： | 国家重点基础研究发展规划项目(973)，国家自然科学基金，福建省自然科学基金 |
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| 摘 要： | 以十二烷基硫酸钠（SDS）和三嵌段共聚物P123为混合模板剂,尿素为沉淀剂,采用均匀沉淀法制备了具有介孔结构的NiO和CeNiO催化剂.考察了催化剂的丙烷氧化脱氧反应性能,并利用用N2吸附-脱附、透射电镜（TEM）、X射线粉末衍射（XRD）和H2程序升温还原（H2-TPR）等技术对催化剂进行了表征.活性测试结果表明,在400-450℃范围内NiO和CeNiO催化剂有相似的催化性能,但后者表现出较高的低温（<400℃）催化活性.325℃反应时,纯NiO上丙烯收率仅为3.1%,而5CeNiO(nCe/nNi=5%)催化剂上丙烯收率高达12.2%.N2吸附-脱附和TEM结果表明,制备的NiO和CeNiO催化剂均有较大的比表面积且具有虫孔状介孔结构.H2-TPR结果表明,CeNiO催化剂中由于Ce的存在使得得一部分氧物种的可还原性能明显增强,这可能是该催化剂具有较高催化活性的重要原因.
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| 关 键 词： | 丙烷 氧化脱氢 丙烯 介孔CeNiO催化剂 |
| 收稿时间： | 2011-06-02 |
| 修稿时间： | 2011-07-27 |
Synthesis and Catalytic Performances of Mesoporous CeNiO Catalysts for the Oxidative Dehydrogenation of Propane to Propene |
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| WANG Cai-Cai,LI Jian-Hui,SUN Yi-Fei,ZHU Xiao-Quan,HUANG Chuan-Jing,WENG Wei-Zheng,WAN Hui-Lin. Synthesis and Catalytic Performances of Mesoporous CeNiO Catalysts for the Oxidative Dehydrogenation of Propane to Propene[J]. Acta Physico-Chimica Sinica, 2011, 27(10): 2421-2426. DOI: 10.3866/PKU.WHXB20110932 |
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| Authors: | WANG Cai-Cai LI Jian-Hui SUN Yi-Fei ZHU Xiao-Quan HUANG Chuan-Jing WENG Wei-Zheng WAN Hui-Lin |
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| Affiliation: | State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian Province, P. R. China |
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| Abstract: | Mesoporous NiO and CeNiO catalysts were prepared by homogeneous precipitation using sodium dodecyl sulfate(SDS) mixed with triblock copolymer P123 as a template and urea as a hydrolysis-controlling agent.The prepared catalysts were evaluated for the oxidative dehydrogenation of propane (ODP) to propene and the structure and properties of the catalysts were characterized by N_2 adsorption-desorption, transmission electron microscopy(TEM),powder X-ray diffraction(XRD),and H_2 temperature-programmed reduction(... |
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| Keywords: | Propane Oxidative dehydrogenation Propene Mesoporous CeNiO catalyst |
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