| V2O5/高硅分子筛的酸性与甲苯气相选择氧化 |
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| 引用本文： | 沈少波,单绍纯,陈昆松,黄敏明.V2O5/高硅分子筛的酸性与甲苯气相选择氧化[J].催化学报,1993,14(6):455-460. |
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| 作者姓名： | 沈少波 单绍纯 陈昆松 黄敏明 |
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| 作者单位： | 中国科学技术大学近代化学系，中国科学技术大学近代化学系，中国科学技术大学应用化学系，中国科学技术大学近代化学系 合肥 230026 中国药科大学物化教研室(南京)，合肥 230026，合肥 230026 |
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| 摘 要： | 用固体离子交换法制备了Ｖ２Ｏ５／ＺＳＭ－５和Ｖ２Ｏ５／丝光沸石两类催化剂。通过ＸＲＤ，ＬＲＳ，ＸＰＳ和Ｓｇ测定表征了Ｖ２Ｏ５在分子筛上的分散状态。用吡啶吸附红外光谱法和正丁胺非水溶液回滴法研究了催化剂的表面酸性。用ＥＳＲ研究了甲苯在催化剂上的吸附。结果表明，催化剂的酸性不同，它们吸附甲苯的能力也不同，对甲苯气相选择氧化的活性和选择性也有较大的差异。同时，甲苯选择氧化成苯甲醛的能力还与Ｖ２Ｏ５在分子
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| 关 键 词： | ZSM－5沸石 丝光沸石 五氧化二钒 |
| 收稿时间： | 1993-12-25 |
EFFECT OF ACID BEHAVIOR OF V2O5,/HIGH-SILICA ZEOLITES ON VAPOR PHASE OXIDATION OF TOLUENE |
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| Shen,Shao-bo, Shan,Shao-chun, Chen,Kun-song and Huang,Min-ming.EFFECT OF ACID BEHAVIOR OF V2O5,/HIGH-SILICA ZEOLITES ON VAPOR PHASE OXIDATION OF TOLUENE[J].Chinese Journal of Catalysis,1993,14(6):455-460. |
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| Authors: | Shen Shao-bo Shan Shao-chun Chen Kun-song and Huang Min-ming |
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| Abstract: | V2O5/ZSM-5 and V2O5/mordenite zeolite catalysts were prepared by solid-state ion exchange and their characteristics were studied by using XRD, LRS, XPS and surface area determination, their acid behavior was studied by using pyridine adsorption FT-IR and back titration with nonaqueous ?butylamine solution, and also the adsorption of toluene vapor on their surface was investigated by using ESR. The results suggest that their different capacities of toluene vapor adsorption are caused by their different acid behavior, and their activity and selectivity for toluene oxidation to benzaldehyde are different as well. |
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| Keywords: | ZSM-5 zeolite mordenite vanadium pentoxide acidity toluene oxidation selectivity |
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