| 新型介孔钒氧化物催化剂上丙烷高选择性氧化脱氢制丙烯研究 |
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| 引用本文： | 伊楠,刘咏梅,冯伟樑,曹勇,戴维林,范康年.新型介孔钒氧化物催化剂上丙烷高选择性氧化脱氢制丙烯研究[J].复旦学报(自然科学版),2004,43(4):597-603. |
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| 作者姓名： | 伊楠 刘咏梅 冯伟樑 曹勇 戴维林 范康年 |
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| 作者单位： | 复旦大学,化学系,上海市分子催化与创新材料重点实验室,上海,200433;复旦大学,化学系,上海市分子催化与创新材料重点实验室,上海,200433;复旦大学,化学系,上海市分子催化与创新材料重点实验室,上海,200433;复旦大学,化学系,上海市分子催化与创新材料重点实验室,上海,200433;复旦大学,化学系,上海市分子催化与创新材料重点实验室,上海,200433;复旦大学,化学系,上海市分子催化与创新材料重点实验室,上海,200433 |
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| 基金项目： | 国家自然科学基金资助项目(20203003)，国家重点基础发展规划(2003CB615807)，上海市科技启明星计划(02QA14006)资助项目. |
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| 摘 要： | 采用醇溶液浸渍法制备了介孔SBA-15、介孔MCM-41及无定形SiO2三种不同氧化硅载体担载的系列钒氧化物催化剂．活性测试结果表明，SBA-15为载体的钒氧化物催化剂具有优良的丙烷氧化脱氢反应性能．BET、SEM/TEM、UV-Vis DRS，TPR，UV Raman和程序升温吡啶-FTIR结果表明：介孔SBA-15载体较大的比表面积及孔径、对钒氧物种较高的分散能力以及催化剂表面仅存在少量的弱酸性位等特点有利于丙烷的活化及产物丙烯的脱附，使得催化剂在丙烷氧化脱氢反应中显示出高活性和高选择性．
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| 关 键 词： | 丙烷 丙烯 氧化脱氢 介孔钒氧化物催化剂 SBA-15 |
| 文章编号： | 0427-7104(2004)04-0597-07 |
Highly Selective Oxidative Dehydrogenation of Propane to Propylene over New Type of Mesoporous Vanadia Catalysts |
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| YI Nan,LIU Yong-mei,FENG Wei-liang,CAO Yong,DAI Wei-lin,FAN Kang-nianlecular Catalysis and Innovative Materials,Fudan University,Shanghai ,China.Highly Selective Oxidative Dehydrogenation of Propane to Propylene over New Type of Mesoporous Vanadia Catalysts[J].Journal of Fudan University(Natural Science),2004,43(4):597-603. |
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| Authors: | YI Nan LIU Yong-mei FENG Wei-liang CAO Yong DAI Wei-lin FAN Kang-nianlecular Catalysis and Innovative Materials Fudan University Shanghai China |
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| Affiliation: | YI Nan,LIU Yong-mei,FENG Wei-liang,CAO Yong,DAI Wei-lin,FAN Kang-nianlecular Catalysis and Innovative Materials,Fudan University,Shanghai 200433,China) |
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| Abstract: | A series of vanadia catalysts supported on mesoporous SBA-15, MCM-41 and amorphous SiO_2 prepared by alcohol impregnation technique have been characterized by combined techniques of BET, SEM/TEM, UV-Vis DRS, UV-Raman, FTIR and H_2-TPR. The results show that vanadium species anchored to the SBA-15 surface showed structural properties similar to those on mesoporous V-MCM and conventional V-SiO_2 catalysts, but a higher surface concentration of isolated or low polymeric VO_x species could be achieved on the V-SBA samples. The superior performance of the mesoporous SBA-15 catalysts in the oxidative dehydrogenation of propane has been attributed to a higher dispersion of V species achieved on the SBA-15 support with large pore diameters as well as the low surface acidity of the catalyst. |
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| Keywords: | propane propylene oxidative dehydrogenation (ODH) mesoporous vanadia catalyst SBA-15 |
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