| Pd/La0.5Pb0.5Mn0.9Sn0.1O3对甲苷伯羟基的选择催化氧化 |
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| 引用本文： | 袁华,杜治平,闫志国,吴元欣.Pd/La0.5Pb0.5Mn0.9Sn0.1O3对甲苷伯羟基的选择催化氧化[J].化学学报,2009,67(4):345-351. |
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| 作者姓名： | 袁华 杜治平 闫志国 吴元欣 |
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| 作者单位： | 武汉工程大学绿色化工过程省部共建教育部重点实验室湖北省新型反应器与绿色化学工艺重点实验室,武汉,430073 |
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| 基金项目： | 国家自然科学基金，湖北省自然科学基金 |
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| 摘 要： | 用柠檬酸络合法制备了掺杂钙钛矿型复合金属氧化物载体, 采用沉淀法负载活性组分钯得到催化剂Pd/La0.5Pb0.5Mn0.9Sn0.1O3, 用XRD, SEM和XPS对载体和催化剂结构进行了表征分析, 考察了催化剂和氧化工艺条件对甲基葡萄糖苷的伯羟基选择氧化合成葡萄糖醛酸及其内酯的催化活性的影响. 结果表明, 载体La0.5Pb0.5Mn0.9Sn0.1O3由于掺杂效应而具有较强的助氧化还原能力, 有利于实现活性组分Pd在催化过程中的氧化还原循环. 在Pd负载量为1%、温度70 ℃、pH值为9的条件下, 葡萄糖醛酸及内酯的总收率达到60%, 反应选择性良好.
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| 关 键 词： | Pd/La0.5Pb0.5Mn0.9Sn0.1O3催化剂 甲基葡萄糖苷 葡萄糖醛酸 催化氧化 |
| 收稿时间： | 2008-3-22 |
| 修稿时间： | 2008-9-25 |
Selective Oxidation of Primary Alcohol from Methyl Glucoside over Pd/La0.5Pb0.5Mn0.9Sn0.1O3 Catalyst |
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| Yuan Hua,Du Zhiping,Yan Zhiguo,Wu Yuanxin.Selective Oxidation of Primary Alcohol from Methyl Glucoside over Pd/La0.5Pb0.5Mn0.9Sn0.1O3 Catalyst[J].Acta Chimica Sinica,2009,67(4):345-351. |
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| Authors: | Yuan Hua Du Zhiping Yan Zhiguo Wu Yuanxin |
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| Institution: | Key Laboratory for Green Chemical Process of Ministry of Education;Hubei Key Laboratory of Novel Chemical Reactor and Green Chemical Technology;Wuhan Institute of Technology;Wuhan 430073 |
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| Abstract: | Pd/La0.5Pb0.5Mn0.9Sn0.1O3 was prepared and applied to the selective catalytic oxidation of primary alcohol from methyl glucoside.The perovskite supports and the catalyst samples were characterized by XRD,SEM and XPS techniques.The effect of different catalyst and different conditions of catalytic oxidation on the yield of glucuronic acid was discussed.The results showed that the supports with lattice defection by doping could improve redox ability to Pd active component due to the formation of oxygen vacanc... |
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| Keywords: | Pd/La0 5Pb0 5Mn0 9Sn0 1O3 catalyst methyl glucoside glucuronic acid catalytic oxidation |
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