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| CeO_2/Ni/Mo/SBA-15甲烷二氧化碳重整催化剂的表征和催化性能(英文) | |
| 引用本文： | 黄健,马人熊,高志华,沈朝峰,黄伟.CeO_2/Ni/Mo/SBA-15甲烷二氧化碳重整催化剂的表征和催化性能(英文)[J].催化学报,2012,33(4):637-644. |
| 作者姓名： | 黄健 马人熊 高志华 沈朝峰 黄伟 |
| 作者单位： | 1. 太原理工大学教育部和山西省煤科学与技术重点实验室,山西太原030024;山西省运城学院,山西运城044000 2. 中国科学院工程与热物理研究所,北京,100190 3. 太原理工大学教育部和山西省煤科学与技术重点实验室,山西太原,030024 |
| 基金项目： | supported by the National basic Research Program of China(973Program,2005CB221204);the National Natural Science Foundation of China(20676087)~~ |
| 摘 要： | 考察了CeO2修饰及未修饰的Ni/Mo/SBA-15催化剂在CH4-CO2重整上的催化性能并采用N2吸脱附、CO2程序升温脱附、H2程序升温还原、傅里叶红外光谱、X射线衍射、扫描电子显微镜和X射线光电子能谱对催化剂进行了表征.结果表明,在常压,800oC条件下,经过100h在线评价后,Ni/Mo/SBA-15和CeO2/Ni/Mo/SBA-15催化剂仍具有高的反应活性和规整的六方介孔结构,其中CeO2修饰的CeO2/Ni/Mo/SBA-15催化剂表面没有积炭形成,表明CeO2的加入促进了Ni物种在SBA-15介孔分子筛表面的分散,从而阻止了Ce/Ni/Mo/SBA-15催化剂上Ni的烧结和积炭. |
| 关 键 词： | 二氧化碳重整 甲烷 镍 钼 介孔分子筛SBA- 铈修饰 |
Characterization and Catalytic Activity of CeO2-Ni/Mo/SBA-15 Catalysts for Carbon Dioxide Reforming of Methane |
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| HUANG Jian , MA Renxiong , GAO Zhihua , SHEN Chaofeng , HUANG Wei.Characterization and Catalytic Activity of CeO2-Ni/Mo/SBA-15 Catalysts for Carbon Dioxide Reforming of Methane[J].Chinese Journal of Catalysis,2012,33(4):637-644. | |
| Authors: | HUANG Jian MA Renxiong GAO Zhihua SHEN Chaofeng HUANG Wei |
| Institution: | 1,* 1 Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China 2 Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China 3 Department of Applied Chemistry,Yuncheng University,Yuncheng 044000,Shanxi,China |
| Abstract: | A Ni/Mo/SBA-15 catalyst was modified with CeCeO2 and compared with the unmodified catalyst.The catalysts were characterized by N2 adsorption,CCeO2 temperature-programmed desorption,H2 temperature-programmed reduction,Fourier transform infrared spectrometer,X-ray diffraction,scanning electron microscopy,and X-ray photoelectron spectroscopy.Both the Ni/Mo/SBA-15 and CeCeO2 /Ni/Mo/SBA-15 catalysts gave good catalytic activities at atmospheric pressure.The CeCeO2 impregnated Ni/Mo/SBA-15 catalyst exhibited excellent stability at 800 oC for 100 h on stream,and after the reaction,carbon deposits were not formed on the catalyst.The Ni/Mo/SBA-15 and CeCeO2 /Ni/Mo/SBA-15 catalysts had a regular hexagonal mesoporous structure.The nickel species and the Ce-Mo oxide components were all in the SBA-15 mesopores.This prevented carbon deposition and sintering of the nickel species in the CeCeO2 /Ni/Mo/SBA-15 catalyst. |
| Keywords: | carbon dioxide reforming methane nickel molybdenum mesoporous molecular sieve SBA-15 cerium-promoted |
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